School of Electronic Engineering and Computer Science

Professor Jonathan Pitts, MEng PhD


Professor of Communication Engineering

Telephone: +44 20 7882 5543
Room Number: Engineering, Eng E308
Office Hours: Wednesday 11:00-12:00


Network Planning, Finance and Management (Undergraduate)

By the end of this module you will understand and describe the principles underlying financial, technology and technical / traffic planning in large-scale telecommunications networks. Assess evolving changes in large-scale telecommunications networks, and explain how they impact environmental issues, and issues associated with routing. Understand customer requirements, and design project plans to meet those requirements. Understand, summarize and explain how large-scale networks are deployed. Understand, list and summarize the costs associated with deploying large-scale networks, using large-scale service provider networks as an example. Understand and list the reasons for standardisation and regulation. Analyse figures generate balance sheets, understand profit and loss accounts.

Network Planning, Finance and Management (Postgraduate)

This is a broad module designed to introduce students to many aspects of network planning, management and finance.


Research Interests:

If you've landed here after clicking through from the Actual Experience web-site or user interface, then you've got to the right place. Welcome! This is the academic "home" of Actual Experience plc - a Queen Mary University of London spinout company that I co-founded in 2009 with Dave Page to commercialise a totally new approach to managing IT infrastructure, i.e. optimising the human experience of networked applications. There are a number of videos here about the company, explaining Digital Quality for businesses and consumers, as well as an interview with Dave Page.

An outline of my research interests is on this page, and at the top and bottom of the page you'll find a variety of buttons and quick links to various teaching and research resources within the school of electronic engineering and computer science. Click on the QM logo above to access the main university web-site, where you'll find further links for research, business, taught programmes etc..

Take a look at the EECS research impact site where you'll find details of the underpinning research stories to 12 impact case studies, including that of Actual Experience. This highlights the blue-sky research in the Networks group over a period of two decades, specialising in the analysis and measurement of complex traffic and network behaviours in packet-based networking technologies.

If you are interested in finding out more about my research and Actual Experience, do please email me (details on this page) or contact the company (details here). 

My research interests focus around the theory and practice of resource sharing under uncertainty in networked systems. I am particularly interested in exploring the complex behaviours of shared network and compute infrastructure and expressing these in terms of end-to-end performance. Much of my work in recent years has been to interpret conventional end-to-end metrics using holistic Quality of Experience formulations. This enables resource sharing to be linked directly to productivity and economic impact, and is opening up fascinating new perspectives on the design, configuration and operation of networked systems. 

In 2009 I co-founded Actual Experience with Dave Page to commercialise this new approach to managing IT infrastructure, i.e. optimising the human experience of networked applications. Our aim is not to generate lots of data (typically, our customers are already well instrumented), but to provide actionable information that leads to improved processes (by automatically locating the problems that users notice), increased operational capacity (by targeting IT investment on the parts that will bring noticeable improvement), and better understanding (by quantifying and benchmarking the results of IT investment). Follow the link to see how we are helping improve Digital Quality for businesses, governments, and consumers. 

Since founding the company, we have recruited an outstanding team to bring our cloud service - Digital Supply Chain Director - to market. In 2014 we listed on the Alternative Investment Market (AIM) of the London Stock Exchange, and later in the year (with increasing levels of interest in the Company?s analytics services from North America) established a US subsidiary to accommodate customers in those markets.

In addition to helping enterprises with our award-winning analytics services, Actual Experience's BbFix project is our crowd-sourced analytics programme to improve the experience of using the Internet for consumers all over the world. We are also helping Ofcom in the UK and other regulators elsewhere in their research into broadband performance by analysing people's home broadband experience. You can find more information about BbFix here.

Actual Experience Awards
2014: Named one of four UK companies in the Red Herring Global: Top 100 Winners.
2014: Business IT Innovation of the Year at the UK IT Industry Awards. 
2014: Named one of Red Herring?s Top 100 award winners, these awards recognise Europe?s leading private companies, celebrating startups? innovations and technologies across their respective industries.
2014: Queen Mary University of London won the Business Impact - Achieved Award for its development and spin-out of Actual Experience.
2013: Named a winner in Cisco?s 2013 British Innovation Gateway (BIG) Awards.
2012 IET Innovation Award: Demonstrating the importance of the 'human experience' and successfully developing a new way to measure how a company's technology performance affects staff productivity, Actual Experience has been acknowledged for its achievements at the Institution of Engineering and Technology's (IET's) 2012 Innovation Awards ceremony, which took place on Thursday 22 November 2012. The full IET press release ('Digital analysts provide CIOs with key to IT estate') can be found here.


  • PITTS JM, Page DJ, Ogilvie RLG (2016). Method of monitoring the performance of a software application. nameOfConference
  • Yang Q, Pitts JM (2010). Scalable voice over Internet protocol service-level agreement guarantees in converged transmission control protocol/Internet protocol networks. nameOfConference
  • Mondragon R, Moore A, Pitts J et al. (2009). Analysis, simulation and measurement in large-scale packet networks. nameOfConference
  • Amaradasa V, Schormans J, Pitts J et al. (2009). Evaluating overflow probability for voice over internet protocol buffer dimensioning. nameOfConference
  • Zuo Y, Pitts J (2008). Impact of link weight ranges on OSPF weight solutions. nameOfConference
  • PITTS JM, Schormans JA, Yang Q (2007). Whole System Modelling and What-If QoS Evaluation of Enterprise VoIP Networks. Networking and Electronic Commerce Research Conference 2007 (NAEC 2007), Italy, October 2007
  • PITTS JM, Zuo Y (2007). Imact 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
  • PITTS JM, Zuo Y (2007). A Strict Tabu Search Algorithm for OSPF Weight Optimization. Proceedings of the 7th IASTED International Conference on Wireless and Optical Communicatios (WOC'07), Montreal, Canada, May 2007
  • Yang Q, Pitts JM (2007). Guaranteeing enterprise VoIP QoS with novel approach to DiffServ AF configuration. nameOfConference
  • Pitts JM, Yang Q, Schormans JA (2007). Using AF-PHB BOUDICCA configuration for reliable real-time precedence-based SLAs in degraded IP networks. nameOfConference
  • Pitts JM, Wang X, Yang Q et al. (2006). Excess-rate queuing theory for M/M/1/RED with application to VolP QoS. nameOfConference
  • Yu B, Pitts JM (2006). Towards fully automated adaptation of RED parameters to optimise TCP performance. nameOfConference
  • Pitts JM, Schormans JA (2006). Configuring IP QoS mechanisms for graceful degradation of real-time services. nameOfConference
  • PITTS JM, Schormans JA (2005). Configuring Packet Transport of Emerging Real-Time Services for Graceful Degraduation Under Congestion. IEEE Bandwidth Management Workshop XI, October 2005
  • Hasib M, Schormans J, Pitts J (2005). Erratum: Probing limitations for packet loss probability measurement on buffered access links (Electronics Letters (2004) 40:20 (1315-1316)). nameOfConference
  • Hasib M, Schormans J, Pitts J (2005). Probing limitations for packet loss probability measurement on buffered access links (vol 40, pg 1315, 2004). nameOfConference
  • Aklilu G, Pitts JM (2005). Multi-scaling chaotic map suitable for modelling aggregate TCP/IP and MPEG4 traffic streams. nameOfConference
  • PITTS J, Ho LTW, Samuel LG (2005). A method of allocating channels to base stations in a telecommunications network, and a telecommunications network. nameOfConference
  • PITTS JM, Yang Q (2005). QoS Routing with Multiple Additive Constraints. PREP March 2005
  • Pitts JM, Arrowsmith DK, MONDRAGON-CEBALLOS RJ et al. (2005). Dynamical Modelling of TCP Packet Traffic on Scale-Free Networks. Report 07, 2004/2005, Institut Mittag-Leffler, Stockholm
  • Pitts JM, Arrowsmith DK, MONDRAGON-CEBALLOS RJ et al. (2005). Phase transitions in Packet Traffic on Regular Networks: a comparison of source types and topologies. Report 08, 2004/2005, Institut Mittag-Leffler, Stockholm
  • Hasib M, Schormans J, Pitts J (2004). Probing limitations for packet loss probability measurement on buffered access links. nameOfConference
  • PITTS JM, Yang Q (2004). Constraint-Based Routing with End-to-End Bandwidth Guarantees. EPSRC PGNET 2004, Liverpool, June 2004
  • PITTS JM, Ogilvie R (2004). Quality of Service Measurement and Analysis in IP Networks. EPSRC PGNET2004, Liverpool, June 2004
  • PITTS J, Ho LTW, Samuel LG (2004). A Method of Monitoring State of a Telecommunications Network Comprising a Plurality of Nodes, and a Corresponding Telecommunications Network. nameOfConference
  • Pitts JM, SCHORMANS JA (2004). So You Think You Can Measure IP QoS?. 2nd IEE Conference on QoS in IP Networks, Savoy Place, 2-3 March 2004
  • PITTS JM, Mondragon-Ceballos RJ, Aklilu G (2003). Modelling and Analysis of WAN Traffic Using Chaotic Intermittency Map. London Communications Symposium, UCL, September 2003
  • PITTS JM, Ho LTW, Samuel LG (2003). 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), University of Bradford, July 2003
  • PITTS JM, Zuo Y (2003). Resource Partitioning Algorithm for Network Design. EPSRC PRNET 2003, Liverpool John Moores University, 16-17 June 2003
  • Leung CM, Schormans JA, Pitts JM et al. (2003). Accurate decay rate prediction for burst-scale queueing in packet buffers. nameOfConference
  • Ho LTW, Samuel LG, Pitts JM (2003). Applying emergent self-organizing behavior for the coordination of 4G networks using complexity metrics. nameOfConference
  • Arrowsmith DK, Mondragon RJ, Pitts JM et al. (2003). Internet packet traffic congestion. nameOfConference
  • Woolf M, Arrowsmith DK, Mondragón-C RJ et al. (2002). Optimization and phase transitions in a chaotic model of data traffic.. nameOfConference
  • PITTS JM, Ho LTW, Samuel LG (2002). Decentralised Cell Dimensioning in 4G Networks: Ananlysing Self-Organisig Behaviour Using Complexity Metrics. XVIII World Telecommunications Congress, Paris, September 2002
  • PITTS JM, Ho LTW, Samuel LG (2002). Invoking Emergent Sel-Organising Behaviour for Network Auto-Configuration. 6th Wireless World Research Forum, London, June 2002
  • PITTS J, Ho LTW, Samuel LG (2002). A method of selecting maximum transmission power level to be used by a radio telecommunications base station or base stations in a network, a radio telecommunications base station and a radio telecommunications network. nameOfConference
  • Pitts JM, Schormans JA, Woolf M et al. (2002). End to end performance in real time IP networks with self-similar behaviour. nameOfConference
  • Pitts JM, ARROWSMITH DK, Mondragon RJ (2002). Minimising end -to-end delays in the presence of self-similar traffic.. Proc. XV111 World Telecom. Cong. (Paris) 12(1).
  • Pitts JM, Arrowsmith DK, MONDRAGON-CEBALLOS RJ (2002). Minimising end-to-end delays in the presence of self-similar traffic. Teletraffic Congress, Paris 2002
  • SCHORMANS J, Pitts JM (2002). Overflow Probability in Shared Cell Switched Buffers. nameOfConference
  • Schormans JA, Pitts JM (2001). From Erlangs to excess rate. nameOfConference
  • Pitts JM, Schormans JA, Scharf EM et al. (2001). Tight bounds for the tail of the packet waiting time distribution in buffered networks. nameOfConference
  • Pitts JM, MONDRAGON-CEBALLOS RJ, Aklilu G (2001). Modelling the Bounds on LRD Behaviour for IP Traffic. PGNET2001, Liverpool, UK
  • Cuthbert LG, Pitts JM, SCHORMANS JA et al. (2001). A Hybrid Technique for Accelerated Simulation of ATM Networks and Network Elements. nameOfConference
  • Mondragon RJ, Arrowsmith DK, Pitts JM (2001). Chaotic maps for traffic modelling and queueing performance analysis. nameOfConference
  • Pitts JM, Schormans JA, Phillips CI et al. (2001). Accurate delay bounds for real-time IP services in presence of variable packet size. nameOfConference
  • Mondragon RJ, Arrowsmith DK, Pitts J (2001). Controlling self-similar traffic and shaping techniques. nameOfConference
  • PITTS JM, SCHORMANS JA (2001). Introduction to IP and ATM Design and Performance (Second Edition). nameOfConference
  • Pitts JM, Arrowsmith RJ, MONDRAGON-CEBALLOS RJ (2001). Traffic modelling and queuing performance analysis using chaotic maps. nameOfConference
  • SCHORMANS JA, Stewart R, Pitts JM et al. (2000). Analysis of local internet / enterprise networking multiplexer for on-off VoIP sources. nameOfConference
  • Mondragón RJ, Pitts JM, Arrowsmith DK (2000). Chaotic intermittency-sawtooth map model of aggregate self-similar traffic streams. nameOfConference
  • SCHORMANS JA, Pitts JM, Scharf E et al. (2000). Buffer Overflow Probability for Multiplexed On-Off VoIP Sources. nameOfConference
  • Ma AHI, Schormans JA, Pitts JM et al. (2000). Design rules and equivalent capacity for buffering of Pareto source. nameOfConference
  • SCHORMANS J, Pitts JM, Mondragon R et al. (2000). Design rules for buffering overlapping Pareto processes in packetised networks. nameOfConference
  • Mondragon RJ, Arrowsmith DK, Griffiths JM et al. (1999). Chaotic maps for network control: Traffic modelling and queueing performance analysis. nameOfConference
  • Pitts J, Schormans J (1999). End to end QoS bounds for RTP based service sub-networks. nameOfConference
  • Pitts J, Luo Z, Cosmas J (1999). Practical 'what-if?' modelling for resource management of corporate voice-data networks. nameOfConference
  • Pitts J, Schormans J (1999). Resource partitioning and management of inter-networks for heterogeneous services. nameOfConference
  • Ho LTH, Pitts JM, Samuel LG et al. (1998). Buffering packetised data: An examination of the crossover effect. nameOfConference
  • Schormans JA, Pitts JM (1998). Decay rate (ER) modelling of G/D/1 queue, and results for ATM telecommunications. nameOfConference
  • Samuel LG, Pitts JM, Mondragon RJ et al. (1998). Maps paradigm: chaotic control of networks. nameOfConference
  • Schormans JA, Pitts JM (1997). Solution for M/G/1 queues. nameOfConference
  • Schormans J, Pitts J (1996). New models for admission control of priority traffic in ATM networks. nameOfConference
  • Schormans JA, Pitts JM, Clements BR et al. (1996). Approximation to M/D/1 for ATM CAC, buffer dimensioning and cell loss performance. nameOfConference
  • Pitts JM (1995). Cell-rate modelling for accelerated simulation of ATM at the burst level. nameOfConference
  • Fonseca P, Pitts JM, Cuthbert LG (1995). Exact fluid-flow analysis of single ON/OFF source feeding an ATM buffer with space priority. nameOfConference
  • Pitts JM, Schormans JA (1995). Discretised fluid-flow analysis for ATM connection admission control. nameOfConference
  • Schormans J, Pitts J, Cuthbert L (1994). Exact fluid-flow analysis of single on/off source feeding an ATM buffer. nameOfConference
  • Swift J, Bocci M, Pitts J et al. (1994). Application of ATM network simulation to TMN studies. nameOfConference
  • Bocci M, Pitts JM, Scharf EM (1994). Performance of time stepping mechanism for parallel cell rate simulation of ATM networks. nameOfConference
  • Fonseca P, Pitts J, Cuthbert L (1994). Implementing a space priority mechanism in a cell-rate ATM network simulator. nameOfConference
  • Schormans J, Smith R, Phillips C et al. (1994). Performance evaluation of point to multi-point cell buffering in ATM network switches. nameOfConference
  • Pitts JM, Cuthbert LG (1994). Fluid-flow theory validation of cell-rate simulation technique for ATM-based broadband networks. nameOfConference
  • Sara L, Cuthbert L, Pitts J (1993). MANS and ATM: evolution, interconnection, and interworking. nameOfConference
  • Schormans JA, Pitts JM, Scharf EM (1993). A priority queue with superimposed geometric batch arrivals. nameOfConference
  • Schormans JA, Scharf EM, Pitts JM (1993). Waiting time probabilities in a statistical multiplexer with priorities. nameOfConference
  • Anagnostou ME, Cuthbert L, Lyratzis TD et al. (1992). Economic evaluation of a mature ATM network. nameOfConference
  • Cuthbert LG, Henderson NG, Sapanel JC et al. (1992). Introduction strategies for ATM broadband networks in a European context. nameOfConference
  • Pitts JM, Schormans JA (1992). Renewal theory validation of burst level technique for ATM simulation. nameOfConference
  • Schormans JA, Scharf EM, Pitts JM (1992). Prioritised GEO/D/1 telecommunications switch model. nameOfConference
  • Manthorpe S, Pitts J, Cosmas J (1991). Traffic control parameters for video sources in ATM networks. nameOfConference
  • Pitts JM, Cuthbert LG (1991). Traffic mixes on broadband ATM link. nameOfConference
  • Pitts JM, Sun Z, Cosmas JP et al. (1991). Burst-level teletraffic modelling. Applications in broadband network studies. nameOfConference
  • Pitts JM, Schormans JA (1990). Analysis of ATM Switch Model (GEO/ATD/1) with Time Priorities. nameOfConference
  • Schormans JA, Scharf EM, Pitts JM (1990). Analysis of telecommunications switch model (GEO/D/1) with time priorities. nameOfConference