Publications

2007

J.M. Pitts, Q. Yang and J.A. Schormans, Using AF-PHB BOUDICCA Configuration for Reliable Real-Time Precedence-Based SLAs in Degraded IP Networks, IEEE MILCOM, October 2007

J.M. Pitts, Q. Yang, and J.A. Schormans, Whole system modelling and what-if QoS evaluation of enterprise VoIP networks, Networking and Electronic Commerce Research Conference 2007 (NAEC 2007), Italy, October 2007

Y. Zuo and J.M. Pitts, Impact of Link Weight Ranges on OSPF Weight Solutions, Proceedings of the 2nd International Conference on Communications and Networking in China (CHINACOM'07), Shanghai, China, August 2007.

J.M. Pitts and Q. Yang, Guaranteeing Enterprise VoIP QoS with Novel Approach to DiffServ AF Configuration, IEEE ICC, June 2007

Y. Zuo and J.M. Pitts, A Strict Tabu Search Algorithm for OSPF Weight Optimization, Proceedings of the 7th IASTED International Conferences on Wireless and Optical Communications (WOC'07), Montreal, Canada, May 2007

L.T.W. Ho, J.M. Pitts, L.G. Samuel, A method of selecting maximum transmission power level to be used by a base station, Patent granted 25 January 2007 as Patent No. EP1343336, DE60216720D, US2003171132.

2006

J.M. Pitts and J.A. Schormans, Configuring IP QoS mechanisms for graceful degradation of real-time services, IEEE MILCOM, October 2006

J.M. Pitts, X. Wang, Q. Yang, and J.A. Schormans, Excess-rate queuing theory for M/M/1/RED with application to VoIP QoS, IET Electronics Letters, 28 September 2006, Vol. 42, No. 20, pp.1188-1189

B. Yu and J.M. Pitts, Towards fully automated adaptation of RED parameters to optimize TCP performance, IEE Electronics Letters, 19th January 2006, Vol. 42, No. 2, pp. 123-5

2005

J.M. Pitts and J.A. Schormans, Configuring packet transport of emerging real-time services for graceful degradation under congestion, IEEE Bandwidth Management Workshop XI, October 2005

G. Aklilu and J.M. Pitts, A multi-scaling chaotic map suitable for modelling aggregate TCP/IP and MPEG 4 traffic streams, IEE Electronics Letters, 9th June 2005, Vol. 41, No. 12, pp.695-696.

L.T.W. Ho, J.M. Pitts, L.G. Samuel, A method of allocating channels to base stations in a telecommunications network, and a telecommunications network, Patent granted 1 June 2005 as Patent No. EP1343337, DE60204421.9 and US2004203814.

Q. Yang and J.M. Pitts, QoS routing with multiple additive constraints, PREP, March 2005

2004

M. Hasib, J. Schormans, and J.M. Pitts, Probing limitations for packet loss probability measurement on buffered access links, IEE Electronics Letters, vol.40, no.20, 30 Sept. 2004, pp.1315-16.

R. Ogilvie and J.M. Pitts, Quality of Service Measurement and Analysis in IP Networks, EPSRC PGNet 2004, June 2004, Liverpool

Q. Yang and J.M. Pitts, Constraint-Based Routing with End-to-End Bandwidth Guarantees, EPSRC PGNet 2004, June 2004, Liverpool

L.T.W. Ho, J.M. Pitts, L.G. Samuel, A Method Of Monitoring State Of A Telecommunications Network Comprising A Plurality Of Nodes, And A Corresponding Telecommunications Network, Patent granted: 30 March 2004 as Patent No. GB2386287 and US2003169762.

J.A. Schormans and J.M. Pitts, So you think you can measure IP QoS?, IEE Telecommunications QoS 2004 conference, March 2004

2003

G. Aklilu, J.M. Pitts, & R.J. Mondragon, Modelling and analysis of WAN traffic using chaotic intermittency map, London Communications Symposium, UCL, September 2003.

Ho, L.T.W., Pitts, J.M., and Samuel, L.G., A Self-Organising Channel Allocation Algorithm: Implementation and Evaluation Using Complexity Measurement, First International Working Conference On Performance Modelling And Evaluation Of Heterogeneous Networks (HET-NETs 03), Univ. of Bradford, July 2003

Y. Zuo, J.M. Pitts, Resource Partitioning Algorithm for Network Design, EPSRC PGNet 2003, 16th – 17th June 2003.

D.K. Arrowsmith, R.J. Mondragon, J.M. Pitts, and M. Woolf, Internet packet traffic congestion, 2003 IEEE International Symposium on Circuits and Systems, May 2003, Bangkok, Thailand.

Ho L.T.W., Samuel L.G., and Pitts J.M., Applying emergent self-organising behaviour for the coordination of 4G networks using complexity metrics, Bell Labs Technical Journal 8(1), 2003.

C.M. Leung, J.A. Schormans, J.M. Pitts, and M. Woolf: Accurate decay rate prediction for burst-scale queueing in packet buffers, IEE Electronics Letters, Vol.39, No.2, 23rd January, 2003, pp253-254.

2002

M. Woolf, D.K. Arrowsmith, R.J. Mondragón, and J.M. Pitts, Optimization and phase transitions in a chaotic map model of data traffic, Phys. Rev. E 66, 046106, October 2002.

R.J. Mondragon, J.M. Pitts, and D.K. Arrowsmith, Minimising end-to-end delays in the presence of self-similar traffic, XVIII World Telecommunications Congress, Paris, September 2002

L.T.W. Ho, L.G. Samuel, and J.M. Pitts, Decentralised cell dimensioning in 4G networks: analysing self-organising behaviour using complexity metrics, XVIII World Telecommunications Congress, Paris, September 2002

L.T.W. Ho, L.G. Samuel and J.M. Pitts, Invoking Emergent Self-organising Behaviour for Network Auto-configuration, 6th Wireless World Research Forum, London, June 2002

J.M. Pitts, J.A. Schormans, M. Woolf, R.J. Mondragon, and D.K. Arrowsmith, End to end performance in real time IP networks with self-similar behaviour, IEEE International Conference on Acoustics, Speech, and Signal Processing, Volume: 4, May 2002, pp. 4044 -4047

2001

Schormans J.A. and Pitts J.M., From Erlangs to excess rate, Journal of the IBTE, Vol. 2, Part 4., Oct-Dec 2001, pp. 54-60.

Pitts, J.M., Schormans, J. A. , Scharf, E.M., Pearmain, A.J., Tight bounds for the tail of the packet waiting time distribution in buffered networks”, International Journal of Communication Systems, Vol. 14, No. 7, September 2001, pp. 715-23

Aklilu G., Pitts J., Modelling the Bounds on LRD Behaviour for IP Traffic, PGNet 2001, Liverpool John Moores University, 18th – 19th June 2001.

Schormans, J.A., Liu, E., Cuthbert, L.G. & Pitts, J.M., A hybrid technique for accelerated simulation of ATM networks and network elements, ACM Transactions on Modeling and Computer Simulation (TOMACS), April 2001 11(2), pp. 182-205

Mondragon, R.J., Arrowsmith, D.K., and Pitts, J.M., Chaotic maps for traffic modelling and queueing performance analysis, Performance Evaluation, Vol. 43, No.4, March 2001, pp. 223-240

Pitts, J.M.; Schormans, J.A.; Phillips, C.I.; Griffiths, J.M., Accurate delay bounds for real-time IP services in presence of variable packet size , Electronics Letters, Volume: 37 Issue: 3 , 1 Feb. 2001, Page(s): 166-167

Mondragon RJ, Arrowsmith DK, Pitts J. Controlling self-similar traffic and shaping techniques. Nonlinear Control in the Year 2000 (Lecture Notes in Control and Information Sciences Vol.259). Springer-Verlag. Part vol.2, 2001, pp.149-61 vol.2. Berlin, Germany

2000

R.J. Mondragon, J.M. Pitts & D.K. Arrowsmith., Chaotic intermittency-sawtooth map model of aggregate self-similar traffic streams, Electronics Letters, Vol. 36, no. 2, pp 184-186, January 2000

J.A. Schormans, J.M. Pitts, E.M. Scharf, A.J. Pearmain & C.I. Phillips, Buffer Overflow Probability for Multiplexed On-Off VoIP Sources, Electronics Letters, Vol. 36, no. 6, pp

J.A. Schormans & J.M. Pitts, Overflow probability in shared cell switched buffers, IEEE Communications Letters, Vol. 4, no. 5, pp 167-169, May 2000

J.A. Schormans, J.M. Pitts, A.H.I. Ma & R.J. Mondragon, Accurate results for traffic engjneering in the presence of LRD, 16th IEE UK Teletraffic Symposium, May 2000

J.A. Schormans, J.M. Pitts, R.J. Mondragon, E.M. Scharf, A.J. Pearmain & C.I. Phillips, Design rules for buffering overlapping Pareto processes in packetised networks, Electronics Letters, Vol. 36, no.12, pp 1086-1088, June 2000

J.A. Schormans, J.M. Pitts, E.M. Scharf, Pearmain, A. & C.I. Phillips, Analysis and design rules for multiplexing models: SRD traffic and LRD traffic, Eighth IFIP Workshop on Performance Modelling and Evaluation of ATM and IP, University of Bradford, July 2000

A.H.I. Ma, J.A. Schormans, J.M. Pitts & A.J. Pearmain, Design rules and equivalent capacity for a Pareto source, Electronics Letters, Vol. 36, no. 15, pp 1274-1275, July 2000

R. Stewart, J.A. Schormans, J.M. Pitts, A.J. Pearmain & C.I. Phillips, Analysis of local internet/enterprise networking multiplexer for on-off VoIP sources, Electronics Letters, Vol. 36, no. 21, pp 1825-1826, October 2000

J.M. Pitts & J.A. Schormans, Introduction to IP and ATM design and performance, John Wiley and Sons, December 2000

Pitts, J.M. Introduction to ATM design and performance: with applications analysis software / J.M. Pitts and J.A. Schormans. Chichester: John Wiley &Sons, c1996. - xiii,190p. - 0-471-96340-2