Dr John Schormans
Senior Lecturer
School of Electronic Engineering and Computer Science
Queen Mary University of London
Queen Mary University of London
Research
packet networks, probabilistic performance analysis and evaluation of packet networks
Interests
My main focus is on analysis, simulation and measurement of packet-based networks, in wired and wireless scenarios. This includes evaluating QoE as well as more traditional network performance metrics.Publications
Publications of specific relevance to the Centre for Networks, Communications and Systems2023
Significance of Cross-Correlated QoS Configurations for Validating the Subjective and Objective QoE of Cloud Gaming ApplicationsAhmad N, Wahab A, Schormans J and Arnab AA
Future Internet, Mdpi vol. 15 (2)
02-02-2023
2022
Comparative QoE Study of VoD and Passive Gaming Videos using Cross-Correlated QoS MetricsAhmad N, Wahab A, Schormans J and Arnab AA
Proceedings of the 20th ACM International Symposium on Mobility Management and Wireless Access., 105-109.
24-10-2022
A Novel Objective Video Quality Assessment Metric For Cloud Gaming ApplicationsAhmad N, Wahab A, Schormans J and Arnab AA
2022 International Conference on Communications, Computing, Cybersecurity, and Informatics (CCCI). vol. 00, 1-8.
19-10-2022
2021
Subjective Quality Assessment for Cloud GamingWahab A, Ahmad N, Martini MG and Schormans J
J — Multidisciplinary Scientific Journal, Mdpi vol. 4 (3), 404-419.
05-08-2021
Analysis of the Cost of Varying Levels of User Perceived Quality for Internet AccessArnab AA, Raj SMRH, Schormans J, Mukta SJ and Ahmad N
In Intelligent Computing and Optimization, Springer Nature 393-405.
01-01-2021
2020
Direct propagation of network QoS distribution to subjective QoE for Video on Demand applications using VP9 codecWahab A, Ahmad N and Schormans J
2020 International Wireless Communications and Mobile Computing (IWCMC). vol. 00, 929-933.
15-06-2020
Variation in QoE of passive gaming video streaming for different Packet Loss RatiosWahab A, Ahmad N and Schormans J
2020 Twelfth International Conference on Quality of Multimedia Experience (QoMEX). vol. 00, 1-4.
26-05-2020
Statistical error propagation affecting the quality of experience evaluation in video on demand applicationsWahab A, Ahmad N and Schormans J
Applied Sciences (Switzerland), Mdpi Ag vol. 10 (10)
25-05-2020
Proximity as a Service for the Use Case of Access Enhancement via Cellular Network-Assisted Mobile Device-to-Device testGuo T, Schormans J, Lexi X, Jinze W and Cao Y
Ieee Access, Institute of Electrical and Electronics Engineers (Ieee) vol. 4, C2-2.
10-02-2020
Proximity as a Service for the Use Case of Access Enhancement via Cellular Network-Assisted MobileDevice-to-DeviceSchormans J, Guo TIANHAO, XU L, WU J and CAO Y
Ieee Access, Institute of Electrical and Electronics Engineers (Ieee)
10-02-2020
Paper title: Direct propagation of network QoS distribution to subjective QoE for Video on Demand applications using VP9 codec.Schormans J, Wahab A and Ahmad N
IWCMC 2020.
01-01-2020
Variation in QoE of Passive Gaming Video Streaming for Different Packet Loss RatiosSchormans J, Wahab A and Ahmad N
QoMEX 2020.
01-01-2020
Importance of Cross-Correlation of QoS metrics in Network Emulators to Evaluate QoE of Video Streaming ApplicationsSchormans J, Ahmad N and Wahab A
11th International Conference on Network of the Future (NoF 2020).
01-01-2020
2018
User experience aware active queue management in cellular networksDai Y, Wijeratne V, Chen Y and Schormans J
Journal of Communications, Engineering and Technology Publishing vol. 13 (10), 588-593.
01-10-2018
Video-on-demand QoE Evaluation Across Different Age- Groups and Its Significance for Network CapacityRoshan M, Schormans JA and Ogilvie R
Icst Transactions on Mobile Communications and Applications, European Alliance For Innovation N.O. vol. 3 (9)
10-01-2018
2017
CAP: A ContAct based Proximity service via opportunistic device-to-device relayGuo T, Huang G, Schormans J, Wang T and Cao Y
ISWCS 2017. vol. 2017-August, 337-342.
14-11-2017
Channel Quality Aware Active Queue ManagementSCHORMANS JA
Computer Science and Electronic Engineering (CEEC), 2017.
27-09-2017
QoS-Aware Energy-Efficient Cooperative Scheme for Cluster-Based IoT SystemsSong L, Chai KK, Chen Y, Schormans J, Loo J and Vinel A
Ieee Systems Journal vol. 11 (3), 1447-1455.
23-06-2017
Optimal design of experiments on connected units with application to social networksParker BM, Gilmour SG and Schormans J
Journal of The Royal Statistical Society Series C-Applied Statistics vol. 66 (3), 455-480.
28-02-2017
Energy-Aware Restricted Access Window Control with Retransmission Scheme for IEEE 802.11AH (Wi-Fi HaLow) Based NetworksWang Y, Chai KK, Chen Y, Schormans J and Loo J
2017 13th Annual Conference on Wireless On-demand Network Systems and Services (WONS)., 69-76.
01-02-2017
2016
Cooperative Coalition Selection for Quality of Service Optimization in Cluster-Based Capillary NetworksSong L, Chai KK, Chen Y, Loo J and Schormans J
Ieee Systems Journal, Institute of Electrical and Electronics Engineers (Ieee) vol. 12 (2), 1700-1708.
07-12-2016
Energy-Delay Aware Restricted Access Window with Novel Retransmission for IEEE 802.11ah NetworksWang Y, Chai KK, Chen Y, Schormans J and Loo J
2016 IEEE Global Communications Conference (GLOBECOM)., 1-6.
01-12-2016
Cross‐layer queueing analysis for aggregated ON–OFF arrivals with adaptive modulation and codingHan X and Schormans J
Iet Communications, Institution of Engineering and Technology (Iet) vol. 10 (17), 2336-2343.
01-11-2016
Two-Level Game for Relay-Based Throughput Enhancement via D2D Communications in LTE NetworksZhao J, Chai KK, Chen Y, Schormans J and Alonso-Zarate J
2016 IEEE International Conference on Communications (ICC)., 1-6.
01-05-2016
QPSO-Based Energy-Aware Clustering Scheme in the Capillary Networks for Internet of Things SystemsSong L, Chai KK, Chen Y, Loot J, Jimaa S and Schormans J
2016 IEEE Wireless Communications and Networking Conference., 1-6.
01-04-2016
Energy Efficiency Cooperative Scheme for Cluster-based Capillary Networks in Internet of Things SystemsSong L, Chai KK, Chen Y and Schormans J
2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)., 1-6.
01-01-2016
2015
Joint mode selection and resource allocation for machine‐type D2D linksZhao J, Chai KK, Chen Y, Schormans J and Alonso‐Zarate J
Transactions on Emerging Telecommunications Technologies, Wiley vol. 28 (2)
11-11-2015
QoS-aware Energy Efficient Cooperative Scheme for Cluster-based IoT SystemsSCHORMANS JA
Ieee Systems Journal, Institute of Electrical and Electronics Engineers
11-11-2015
Energy-Aware Adaptive Restricted Access Window for IEEE 802.11AH Based Smart Grid NetworksWang Y, Li Y, Chai KK, Chen Y and Schormans J
2015 IEEE International Conference on Smart Grid Communications (SmartGridComm)., 581-586.
01-11-2015
Energy-Aware Adaptive Restricted Access Window for IEEE 802.11ah Based NetworksWang Y, Li Y, Chai KK, Chen Y and Schormans J
2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)., 1211-1215.
01-08-2015
Self-organising cluster-based cooperative load balancing in OFDMA cellular networksXu L, Chen Y, Chai KK, Schormans J and Cuthbert L
Wireless Communications and Mobile Computing vol. 15 (7), 1171-1187.
01-05-2015
Optimal design of measurements on queueing systemsParker BM, Gilmour S, Schormans J and Maruri-Aguilar H
Queueing Systems, Springer Us vol. 79 (3-4), 365-390.
01-04-2015
Energy efficient cooperative MISO scheme for cluster-based M2M capillary networksSong L, Chai KK, Chen Y and Schormans J
2014 International Symposium on Wireless Personal Multimedia Communications (WPMC)., 310-315.
19-01-2015
Increasing throughput in IEEE 802.11 by optimal selection of backoff parametersParker BM, Schormans JA and Gilmour SG
Iet Networks, Institution of Engineering and Technology (Iet) vol. 4 (1), 21-29.
01-01-2015
Utility based framework for optimal network measurementParker BM, Gilmour SG and Schormans J
Iet Networks, Institution of Engineering and Technology (Iet) vol. 4 (1), 10-20.
01-01-2015
Bounds on Accuracy when Estimating the Loss Probability in a Packet BufferWahid AA and Schormans JA
2015 7th Computer Science and Electronic Engineering Conference (CEEC)., 24-28.
01-01-2015
Fnergy-aware Adaptive Restricted Access Window for IEEE 802.11ah Based NetworksWang Y, Li Y, Chai KK, Chen Y and Schormans J
2015 IEEE 26TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC)., 1211-1215.
01-01-2015
Joint mode selection and radio resource allocation for D2D communications based on dynamic coalition formation gameZhao J, Chai KK, Chen Y, Schormans J and Alonso-Zarate J
Proceedings of 21st European Wireless Conference, European Wireless 2015.
01-01-2015
2014
Channel-Aware Optimised Traffic Shifting in LTE-Advanced Relay NetworksXu L, Luan Y, Chao K, Cheng X, Zhang H and Schormans J
2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC)., 1597-1602.
01-01-2014
2013
Bounding the Maximum Sampling Rate when Measuring PLP in a Packet BufferWahid AA and Schormans J
2013 5th Computer Science and Electronic Engineering Conference (CEEC). vol. 1, 115-118.
01-09-2013
Performance comparisons between cellular-only and cellular/WLAN integrated systems based on analytical modelsSong G, Yang L, Wu J and Schormans J
Frontiers of Computer Science vol. 7 (4), 486-495.
01-08-2013
Self‐organising cluster‐based cooperative load balancing in OFDMA cellular networksXu L, Chen Y, Chai KK, Schormans J and Cuthbert L
Wireless Communications and Mobile Computing, Wiley vol. 15 (7), 1171-1187.
21-07-2013
User Relay assisted Traffic Shifting in LTE-Advanced SystemsXu L, Chen Y, Chai KK, Liu D, Yang S and Schormans JA
77th IEEE Vehicular Technology Conference (VTC2013-Spring) Dresden, Germany 2 Jun 2013 - 5 Jun 2013. Editors: Fettweis G.
01-01-2013
Evaluating QoE in Cognitive Radio Networks for Improved Network and User PerformanceZhong B, Schormans J and Bodanese E
Ieee Communications Letters vol. 17 (12), 2376-2379.
01-01-2013
2012
Erlang's fixed-point approximation for performance analysis of HetNetsSong G, Wu J, Schormans J and Cuthbert L
Journal of Applied Mathematics vol. 2012
20-06-2012
A performance study of hierarchical heterogeneous wireless integrated networksSong G, Wu J, Schormans J, Yang L and Cuthbert L
Applied Mathematics and Information Sciences vol. 6 (2 SUPPL.)
01-04-2012
A Performance Study of Hierarchical Heterogeneous Wireless Integrated NetworksSong G, Wu J, Schormans J, Yang L and Cuthbert L
Applied Mathematics & Information Sciences vol. 6 (2), 497S-504S.
01-01-2012
Cooperative load balancing for OFDMA cellular networksLexi Xu , Yue Chen , Kok Keong Chai , Tiankui Zhang , Schormans J and Cuthbert L
European Wireless, 2012. EW. 18th European Wireless Conference., 1-7.
01-01-2012
2011
Design of Experiments for Categorical Repeated Measurements in Packet Communication NetworksSCHORMANS JA, Parker BM and Gilmour SG
Technometrics vol. 53 (4), 339-352.
01-01-2011
User-Vote Assisted Self-Organizing Load Balancing for OFDMA Cellular SystemsXu L, Chen Y, Schormans J, Cuthbert L and Zhang T
2011 IEEE 22ND INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC)., 217-221.
01-01-2011
Packet-delay invariance to scheduling under congestionWijeratne V and Schormans J
IET International Conference on Communication Technology and Application (ICCTA 2011)., 328-331.
01-01-2011
2010
QoS aware mixed traffic packet scheduling in OFDMA-based LTE-advanced networksKausar R, Chen Y, Chai KK, Cuthbert L and Schormans J
UBICOMM 2010 - 4th International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies., 53-58.
01-12-2010
2009
Error analysis in accelerated session-level MANET simulationsLu S and Schromans JA
Simulation Modelling Practice and Theory, Elsevier vol. 17 (7), 1171-1198.
01-08-2009
Measurement of packet loss probability by optimal design of packet probing experimentsParker BM, Gilmour SG and Schormans J
Iet Commun vol. 3 (6), 979-991.
01-06-2009
Application of the generalised ballot theorem for evaluation of performance in packet buffers with non-first in first out schedulingAriffin SHS, Schormans JA and Ma AHI
Iet Commun vol. 3 (6), 933-944.
01-06-2009
Simulation, Analysis and Measurement of Broadband Network TrafficSchormans J
Iet Commun vol. 3 (6), 883-886.
01-06-2009
Analysis, simulation and measurement in large-scale packet networksMondragon R, Moore A, Pitts J and Schormans J
Iet Commun vol. 3 (6), 887-905.
01-06-2009
Evaluating overflow probability for voice over internet protocol buffer dimensioningAmaradasa V, Schormans J, Pitts J and Leung CM
Iet Commun vol. 3 (4), 636-643.
01-04-2009
Queueing Network Topology for Modelling Cellular/Wireless LAN Interworking SystemsSCHORMANS JA, Song and Cuthbert LG
In Performance Modelling and Analysis of Heterogeneous Networks, 1–17, River Publishers Editors: Kouvatsos D.
01-01-2009
2008
Time-stepped approach for accelerated simulation of mobile ad hoc networksLu S and Schormans JA
Iet Commun vol. 2 (5), 609-620.
01-05-2008
AN ANALYTICAL STUDY OF PRECEDENCE AND QOE FOR VOICE SERVICE IN DEGRADED IP NETWORKSPitts JM and Schormans JA
2008 IEEE MILITARY COMMUNICATIONS CONFERENCE: MILCOM 2008, VOLS 1-7., 2481-2487.
01-01-2008
Modelling Cellular/Wireless LAN Integrated Systems with Multi-Rate Traffic Using Queueing NetworkSong GZ, Cuthbert L and Schormans J
2008 4TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-31., 96-99.
01-01-2008
Open Networks of Loss Systems in the Modelling of Tow-Tier Heterogeneous Hierarchical Overlay Wireless NetworksSong GZ, Cuthbert L and Schormans J
2008 THIRD INTERNATIONAL CONFERENCE ON COMMUNICATIONS AND NETWORKING IN CHINA, VOLS 1-3., 140-144.
01-01-2008
2007
Whole System Modelling and What-If QoS Evaluation of Enterprise VoIP NetworksPITTS JM, Schormans JA and Yang Q
Networking and Electronic Commerce Research Conference 2007 (NAEC 2007), Italy, October 2007.
01-10-2007
Accuracy of packet loss monitoring over networked CPEHasib M, Schormans J and Timotijevic T
Iet Commun vol. 1 (3), 507-513.
01-06-2007
A cross layer analysis for voice over WiFi communications in multihop wireless networksStewart R, Xiaoguang L, Schormans JA and Hasib M
International Journal of Mobile Network Design and Innovation, Inderscience Publishers vol. 2 (3/4)
01-01-2007
Using AF-PHB BOUDICCA configuration for reliable real-time precedence-based SLAs in degraded IP networksPitts JM, Yang Q and Schormans JA
2007 IEEE MILITARY COMMUNICATIONS CONFERENCE, VOLS 1-8., 495-501.
01-01-2007
2006
Excess-rate queuing theory for M/M/1/RED with application to VolP QoSPitts JM, Wang X, Yang Q and Schormans JA
Electron Lett vol. 42 (20), 1188-1189.
28-09-2006
Accelerated Simulation of a GPS Scheduler Using Traffic AggregationSCHORMANS JA and Amaradasa V
HETNETs '06 - 4th International Working Conference, Performance Modelling and Evaluation of Heterogeneous Networks, Ilkley, West Yorkshire, UK - September 2006.
01-09-2006
Advanced Receiver Algorithms for Multi-Layered Space-Time Block CodesSCHORMANS JA, Chen X and Raza A
Ultra Wideband Systems, Technologies and Applications, 2006. The Institution of Engineering and Technology Seminar on April 2006.
01-04-2006
SSIM: A Multi-Resolution Fluid Traffic Simulator for MANETsSCHORMANS JA and Lu S
The Third International Conference on Mobile Computing and Ubitquitous Networking (ICMU2006).
01-01-2006
Configuring IP QoS mechanisms for graceful degradation of real-time servicesPitts JM and Schormans JA
MILCOM 2006, Vols 1-7., 2683-2689.
01-01-2006
2005
Configuring Packet Transport of Emerging Real-Time Services for Graceful Degraduation Under CongestionPITTS JM and Schormans JA
IEEE Bandwidth Management Workshop XI, October 2005.
01-10-2005
Erratum: Probing limitations for packet loss probability measurement on buffered access links (Electronics Letters (2004) 40:20 (1315-1316))Hasib M, Schormans J and Pitts J
Electronics Letters vol. 41 (17)
18-08-2005
Probing limitations for packet loss probability measurement on buffered access links (vol 40, pg 1315, 2004)Hasib M, Schormans J and Pitts J
Electron Lett vol. 41 (17), 987-987.
18-08-2005
Fast, stable simulation of power-law packet traffic using concatenated acceleration techniquesMa AHI and Schormans JA
Iee P-Commun vol. 152 (4), 420-426.
01-08-2005
Ubiquitous packet networking and data compressionSchormans J
Electron Lett vol. 41 (9), 523-525.
28-04-2005
Measurement-based end to end latency performance prediction for SLA verificationLeung CM and Schormans JA
J Syst Software vol. 74 (3), 243-254.
01-02-2005
Future Simulation Acceleration of Packet Networks Using GPS SchedulingSCHORMANS JA and Amaradasa V
PGNET '05 - 6th Annual PostGraduate Symposium on the Convergence of Telecommunications, Networking & Broadcasting, Liverpool, UK - 2005.
01-01-2005
2004
Probing limitations for packet loss probability measurement on buffered access linksHasib M, Schormans J and Pitts J
Electron Lett vol. 40 (20), 1315-1316.
30-09-2004
Layered Sapce-Time Block Codes with Interactive DecodingSchormans JA, CHEN X and Raza A
London Communications Symposium 2004, London, UK - 13-14 September 2004.
13-09-2004
KIL-BLAST: diversity and multiplexing trade-off for layered space-time architectures with channel estimation errorRaza A, Schormans JA and Chen X
Electron Lett vol. 40 (12), 747-749.
10-06-2004
A Buffer with Two Priority InputsSCHORMANS JA and Ariffen SHS
2004 IEEE International Conference on Communications (ICC, Paris, June 2004).
01-06-2004
So You Think You Can Measure IP QoS?Pitts JM and SCHORMANS JA
2nd IEE Conference on QoS in IP Networks, Savoy Place, 2-3 March 2004.
02-03-2004
So you think you can measure IP QoSPITTS JM and Schormans JA
IEE Telecommunications QoS Conference, March 2004.
01-03-2004
Accuracy of measurement techniques supporting QoS in packet-based intranet and extranet VPNsSCHORMANS JA, Leung CM and Timotijevic T
Iee Proceedings - Communications: Special Edition on Vpns and Broadband Technology vol. 151 (1), 89-94.
01-02-2004
Measurement for Guaranteeing QoS in Braodband Multiservice NetworksSCHORMANS JA and LEUNG CM
In Mobile and Wireless Systems Beyond 3g: Managing New Business Opportunities, Irm Press Editors: Pagani P.
01-01-2004
Efficient accelerated simulation technique for packet switched networks: A buffer with two priority inputs.Ariffin SHS and Schormans JA
2004 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-7., 2246-2250.
01-01-2004
Measurement for guaranteeing QoS in broadband multiservice networksSCHORMANS JA and Leung CM
In Mobile and Wireless Systems Beyond 3g: Managing New Business Opportunities, Professor Pagani (Ed), Idea Group, Inc
01-01-2004
2003
Bandwidth Overhead of Measurement Technology Used for Guaranteeing QoS in Packet NetworksSCHORMANS JA and Timotijevic T
International Network Optimization Conference (INOC), Paris, France, October 2003.
01-10-2003
Analytical technique for accelerating the simulation of packet networksSchormans J, Liu E, Stewart R and Cuthbert L
Iee P-Commun vol. 150 (5), 341-346.
01-10-2003
Aggregation technique for networks with power law traffic and application to accelerated simulationMa A, Schormans J and Cuthbert L
Iee P-Commun vol. 150 (3), 177-183.
01-06-2003
Accurate decay rate prediction for burst-scale queueing in packet buffersLeung CM, Schormans JA, Pitts JM and Woolf M
Electron Lett vol. 39 (2), 253-254.
23-01-2003
Accelerated Simulation Method for Power-Law Traffic and Non-FIFO SchedulingSCHORMANS JA and Ariffin SHS
London Communications Symposium, University College, London, 2003.
01-01-2003
Bandwidth overhead of probe technology guaranteeing QoS in packet networksSCHORMANS JA and Timotijevic T
Electronic Letters vol. 39 (10), 253-254.
01-01-2003
Evaluating the accuracy of active measurement of delay and loss in packet networksSchormans JA and Timotijevic T
MANAGEMENT OF MULTIMEDIA NETWORKS AND SERVICES, PROCEEDINGS. vol. 2839, 409-421. Editors: Marshall A and Agoulmine N.
01-01-2003
Simulation Acceleration Techniques for Mobile Ad Hoc NetworksLu S and SCHORMANS JA
London Communications Symposium, University College London, 2003.
01-01-2003
Limitations of Passive and Active Measurement in Packet NetworksSCHORMANS JA and Hasib M
London Communications Symposium, University College London, 2003.
01-01-2003
2002
Measurement-based queue length distribution estimation for power-law trafficLeung CM, Schormans JA and Ma AHI
Electron Lett vol. 38 (24), 1608-1610.
21-11-2002
A Neural Network Techniques in ATM Congestion ControlSCHORMANS JA and Al-Hammadi AS
MESM'02, 28-30 September 2002, American University Sharjah, Sharjah, UAE.
28-09-2002
Measurement-based traffic characteristic estimation for QoS-oriented IP networksLeung CM and Schormans JA
JOURNAL OF THE COMMUNICATIONS NETWORK. vol. 1, 14-18.
01-07-2002
Space-time Block Coded OFDM without Guarded IntervalsSchormans JA, CHEN X and Raza A
9th IEEE International Conference on Telecommunications, Beijing, China - 23-26 June 2002.
23-06-2002
Accelerated Simulation Modelling of Power-law Traffic via AggregationSCHORMANS JA and Ma HI
ITC2002, Beijing. China.
01-06-2002
Efficient Simulation Modelling for Long Range Dependent TrafficSCHORMANS JA and Ma HI
Presented at the Fourth Workshop on Rare Simulation and related Combinatorial Optimization Problems (RESIM/COP'02), April 11-12, 2002, Madrid, Spain.
11-04-2002
Hybrid technique for analysis of multiplexed power-law traffic in broadband networksMa AHI and Schormans JA
Electron Lett vol. 38 (6), 295-297.
14-03-2002
A new charging scheme for ATM based on QoSMiah B, Scharf EM, Cuthbert LG and Schormans JA
Int J Commun Syst vol. 15 (1), 85-100.
01-02-2002
A Neuro-Fuzzy Congestion Controller in a Prioritised ATM SwitchSCHORMANS JA and Al-Hammadi AS
First International ICSC Conference on Neuro-Fuzzy Technologies, January 16-19, 2002 at University of Havana, Cuba.
16-01-2002
Measurement-Based Traffic Characteristic Estimation for QoS Oriented IP Networks.SCHORMANS JA and Leung CM
The Journal of The Communications Network. vol. 1 (2)
01-01-2002
Overflow Probability in Shared Cell Switched BuffersSCHORMANS J and Pitts JM
Ieee Communications Letters, Ieeexplore vol. 4 (5), 167-169.
01-01-2002
Accelerated simulation modelling of Power-law traffic via aggregationMa AHI and Schormans JA
ICT02 Beijing, China 1 Jan 1970.
01-01-2002
ON/OFF Pareto Distributed Source at Burst Level: A Study of Fast Simulation Methods for Packet NetworkSCHORMANS JA and Ariffin S
PGNET2002.
01-01-2002
End-to-end performance in real time IP networks with self-similar behavior.Pitts JM, ARROWSMITH DK, Schormans JA, Mondragon DK and Woolf RJ
Ieee Trans on Accoustics, Speech, and Signal Processing. vol. 4
01-01-2002
End to end performance in real time IP networks with self-similar behaviourPitts JM, Schormans JA, Woolf M, Mondragon RJ and Arrowsmith DK
2002 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS I-IV, PROCEEDINGS., 4044-4047.
01-01-2002
Measurement-based end to end latency performance prediction for SLA verificationLeung CM and Schormans JA
ELEVENTH INTERNATIONAL CONFERENCE ON COMPUTER COMMUNICATIONS AND NETWORKS, PROCEEDINGS., 412-417. Editors: Luijten R, Wong E, Makki K and Park EK.
01-01-2002
2001
Applications of Neural Networks to Accelerated Simulation of Internet Type WANsCUTHBERT LG, Schormans JA, Phillips CI, Liu E and Stoneley G
17th International Telecommunications Congress, Brazil.
01-12-2001
Accurate Dimensioning of Service Level Agreements in Voice over IP Networks.SCHORMANS JA and Stewart RA
Journal of The Institution of British Telecommunications Engineers vol. 2 (3), 109-111.
01-09-2001
Tight bounds for the tail of the packet waiting time distribution in buffered networksPitts JM, Schormans JA, Scharf EM and Pearmain AJ
Int J Commun Syst vol. 14 (7), 715-723.
01-09-2001
Accurate dimensioning of service level agreements in voice-over-IP networksStewart R and Schormans J
JOURNAL OF THE INSTITUTION OF BRITISH TELECOMMUNICATIONS ENGINEERS. vol. 2, 109-111.
01-07-2001
A Hybrid Technique for Accelerated Simulation of ATM Networks and Network ElementsCuthbert LG, Pitts JM, SCHORMANS JA and Liu E
Acm Transactions on Modeling and Computer Simulation (Tomacs) vol. 11 (2), 182-205.
01-04-2001
Fuzzy congestion controller in a prioritised ATM switchAl-Hammadi A and Schormans J
Iee P-Commun vol. 148 (2), 57-62.
01-04-2001
Accurate delay bounds for real-time IP services in presence of variable packet sizePitts JM, Schormans JA, Phillips CI and Griffiths JM
Electron Lett vol. 37 (3), 166-167.
01-02-2001
A Fast Simulation Method for Modelling IP NetworksSCHORMANS JA and Ma H
IEE 17th UK Teletraffic Symposium, Dublin 2001.
01-01-2001
Prediction Bounds for End-to-End Delay Analysis in Enterprise IP NetworksSCHORMANS JA and Stewart R
IEE 17th UK Teletraffic Symposium, Dublin, 2001.
01-01-2001
2000
Analysis of local internet / enterprise networking multiplexer for on-off VoIP sourcesSCHORMANS JA, Stewart R, Pitts JM, Scharf EM, Pearmain A and Phillips CI
Electronics Letters vol. 36 (21), 1825-1826.
01-10-2000
Access flow control scheme for ATM networks usingadaptive linear predictionAl-Hammadi A and Schormans J
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 36 (17), 1509-1510.
17-08-2000
ATM Level Performance Analysis on a DS-CDMA Satellite Link using DTXSCHORMANS JA and Timotijevic T
Iee Proc. Comms vol. 147 (1)
01-02-2000
Design rules and equivalent capacity for a Pareto sourceSCHORMANS JA, Pitts JM, Ma A, Scharf E, Pearmain A and Phillips CI
Electronics Letters vol. 36 (15), 1274-1275.
01-01-2000
Resource allocation strategy for ATM-based satellite systemsSCHORMANS JA, Awadalla H and Cuthbert LG
Electronics Letters vol. 36 (3), 281-282.
01-01-2000
Access flow control scheme for ATM networks using adaptive linear predictionSCHORMANS JA
Electronics Letters, Iee/Iet vol. 36 (7), 1274-1275.
01-01-2000
Buffer Overflow Probability for Multiplexed On-Off VoIP SourcesSCHORMANS JA, Pitts JM, Scharf E, Pearmain A and Phillips CI
Electronics Letters, Iee/Iet vol. 36 (6), 523-524.
01-01-2000
Design rules for buffering overlapping Pareto processes in packetised networksSCHORMANS J, Pitts JM, Mondragon R, Scharf E, Pearmain A and Phillips CI
Electronics Letters, Ieeexplore vol. 36 (12), 1086-1088.
01-01-2000
A novel fast simulation method for ATM networksLiu EJ, Schormans J, Cuthbert L and Stoneley G
ATM 2000: PROCEEDINGS OF THE IEEE CONFERENCE 2000 ON HIGH PERFORMANCE SWITCHING AND ROUTING., 387-393.
01-01-2000
Design rules and equivalent capacity for buffering of Pareto sourceMa AHI, Schormans JA, Pitts JM, Scharf EM, Pearmain AJ and Phillips CI
Elec Lett vol. 36 (15), 1274-1275.
01-01-2000
Novel fast simulation method for ATM networksLiu E, Schormans J, Cuthbert L and Stoneley G
Ieee Atm Workshop, Proceedings, 387-393.
01-01-2000
Neural network in fast simulation modellingLiu E, Cuthbert L, Schormans J and Stoneley G
Proceedings of the IEEE-INNS-ENNS International Joint Conference on Neural Networks. IJCNN 2000. Neural Computing: New Challenges and Perspectives for the New Millennium. vol. 6
01-01-2000
1999
Analytic technique for accelerating simulation of generic network trafficSchormans J, Liu E, Cuthbert L and Stoneley G
Electronics Letters vol. 35, 2168 -2170-2168 -2170.
01-12-1999
Resource partitioning and management of inter-networks for heterogeneous servicesPitts J and Schormans J
Proceedings of SPIE - The International Society for Optical Engineering. vol. 3842, 142-153.
01-12-1999
End to end QoS bounds for RTP based service sub-networksPitts J and Schormans J
Proceedings of SPIE - The International Society for Optical Engineering. vol. 3842, 49-56.
01-12-1999
Improving the delay performance of ‘besteffort’ traffic over ATM satellite networksAwadalla HO, Cuthbert LG and Schormans JA
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 35 (17), 1430-1432.
19-08-1999
Buffer partitioning formula for different traffic classes in ATMSchormans JA
International Journal of Communication Systems, Wiley vol. 12 (3), 175-180.
01-05-1999
Framework for supporting real time VBR traffic over satellite networksAwadalla HO, Cuthbert LG and Schormans JA
Electronics Letters vol. 35, 616 -617-616 -617.
01-04-1999
1998
Analysing the interdeparture process in an ATM multiplexerZeiss J and Schormans JA
International Journal of Communication Systems, Wiley vol. 11 (5), 319-325.
01-09-1998
Buffering packetised data: an examination of thecrossover effectHo LTH, Pitts JM, Samuel LG and Schormans JA
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 34 (17), 1637-1638.
20-08-1998
Decay rate (ER) modelling of G/D/1 queue, and resultsfor ATMtelecommunicationsSchormans JA and Pitts JM
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 34 (10), 943-945.
14-05-1998
1997
Solution for M/G/1 queuesSchormans JA and Pitts JM
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 33 (25), 2109-2111.
04-12-1997
ATM modelling: Parameterization of the 4-phase MMPP model for the superposed traffic sourcesYousef SY, Strange CM and Schormans JA
IEEE ATM Workshop, Proceedings., 621-630.
01-12-1997
ATM modelling: Parameterisation of 4-phase MMPPmodel for admission control of superposed traffic sourcesYousef SY, Strange CM and Schormans JA
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 33 (10), 829-830.
08-05-1997
1996
New models for admission control of priority traffic in ATM networksSchormans J and Pitts J
Conference Record / IEEE Global Telecommunications Conference. vol. 1, 206-210.
01-12-1996
Approximation to M/D/1 for ATM CAC, buffer dimensioningand cellloss performanceSchormans JA, Pitts JM, Clements BR and Scharf EM
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 32 (3), 164-165.
01-02-1996
Performance, interarrival, and correlation analysis of four-phase MMPP model in ATM-based B-ISDNYousef SY and Schormans JA
Iee Proceedings - Communications, Institution of Engineering and Technology (Iet) vol. 143 (6)
01-01-1996
1995
Performance evaluation of multipoint cellbuffering in ATMSchormans JA, Smith R and Phillips CI
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 31 (6), 431-432.
16-03-1995
Discretised fluid-flow analysis for ATM connection admission controlPitts JM
5th IEE Conference on Telecommunications. vol. 1995, 135-139.
01-01-1995
1994
Equivalent capacity for on/off sources in ATMSchormans JA, Pitts J, Williams K and Cuthbert LG
Electronics Letters vol. 30, 1740 -1741-1740 -1741.
01-10-1994
Exact fluid-flow analysis of single on/off source feeding an ATM bufferSchormans J, Pitts J and Cuthbert L
Electronics Letters vol. 30, 1116 -1117-1116 -1117.
01-07-1994
Performance evaluation of point to multi-point cell buffering in ATM network switchesSchormans J, Smith R, Phillips C, Pitts J and Cuthbert L
Teletraffic Symposium, 11th. Performance Engineering in Telecommunications Networks. IEE Eleventh UK., 14A/1 -14A/6-14A/1 -14A/6.
01-03-1994
Analysis of a finite shared bufferSchormans JA, Phillips CI, Smith R and Cuthbert LG
Electronics Letters vol. 30, 8 -9-8 -9.
01-01-1994
1993
A priority queue with superimposed geometric batch arrivalsSchormans JA, Pitts JM and Scharf EM
Stochastic Models, Taylor & Francis vol. 9 (1), 105-122.
01-01-1993
Waiting time probabilities in a statistical multiplexer with prioritiesSchormans JA, Scharf EM and Pitts JM
Iee Proceedings I Communications Speech and Vision, Institution of Engineering and Technology (Iet) vol. 140 (4)
01-01-1993
1992
Prioritised GEO/D/1 telecommunications switch modelSchonnans JA, Scharf EM and Pitts JM
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 28 (6), 597-598.
12-03-1992
Renewal theory validation of burst level technique for ATM simulationPitts JM and Schormans JA
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 28 (2), 106-107.
16-01-1992
1990
Analytical studies of superposition GMDP traffic sources for ATM networksSun Z, Cosmas J, Cuthbert LG, Pitts JM and Schormans J
TENCON 90. 1990 IEEE Region 10 Conference on Computer and Communication Systems., 772 -775 vol.2-772 -775 vol.2.
01-09-1990
Analysis of ATM switch model (GEO/ATD/1) with time prioritiesPitts JM and Schormans JA
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 26 (15), 1192-1193.
19-07-1990
Analysis of telecommunications switch model (GEO/D/1) with time prioritiesSchormans JA, Scharf EM and Pitts JM
Electronics Letters, Institution of Engineering and Technology (Iet) vol. 26 (5), 325-326.
01-03-1990
Grants
Grants of specific relevance to the Centre for Networks, Communications and SystemsBespoke network emulation - impact accelerationJohn Schormans
£19,032 EPSRC Engineering and Physical Sciences Research Council
01-12-2018 - 31-07-2019