I am a Principal Researcher and heading up a new Networks, Economics, and Algorithms team at Cambridge.
Stop press: Games, Networks and Markets workshop, 6-7th June 2013.
Research Interests:
Economics and Game theory, Distributed Control, Application Performance, Quality of Service, Stochastic Networks, Performance Modelling .
Current hot topics: Auctions / adauctions, Pricing, Multipath Routing, Routing Games, Home Networks, SDR (Software Defined Radio)
2013
- Mahyar Salek, Yoram Bachrach, and Peter Key, Hotspotting – A Probabilistic Graphical Model For Image Object Localization, in AAAI-13, AAAI, July 2013
- Ben Roberts, Ian Kash, and Peter Key, Ranking and Tradeoffs in Sponsored Search Auctions, in EC13: 14th ACM Conference on Electronic Commerce, ACM, June 2013
2012
- Kareem Amin, Michael Kearns, Peter Key, and Anton Schwaighofer, Budget Optimization for Sponsored Search:Censored Learning in MDPs, in Uncertainty in Artificial Intelligence (UAI), Uncertainty in Artificial Intelligence (UAI), August 2012
- Ramakrishna Gummadi, Peter Key, and Alexandre Proutiere, Optimal Bidding Strategies and Equilibria in Dynamic Auctions with Budget Constraints, 24 May 2012
- Vineet Abhiskeh, Ian A Kash, and Peter Key, Fixed and Market Pricing for Cloud Services, in NetEcon, Full working paper version on arXiv http://arxiv.org/abs/1201.5621, NetEcon, March 2012
- Reshef Meir, Moshe Tennenholtz, Yoram Bachrach, and Peter Key, Congestion Games with Agent Failures, in AAAI 2012, Association for the Advancement of Artificial Intelligence, 2012
- Xi Alice Gao, Yoram Bachrach, Peter Key, and Thore Graepel, Quality Expectation-Variance Tradeoffs in Crowdsourcing Contests, in AAAI 2012, Association for the Advancement of Artificial Intelligence, 2012
2011
- Bozidar Radunovic, Alexandre Proutiere, Dinan Gunawardena, and Peter Key, Dynamic Channel, Rate Selection and Scheduling for White Spaces, in ACM CoNEXT, ACM, December 2011
- R Gummadi, P B Key, and A Proutiere, Optimal Bidding Strategies in Dynamic Auctions with Budget Contstraints, in Forty-Ninth Annual Allerton Conference on Communication, Control, and Computing, IEEE, 30 September 2011
- Peter Key and Furcy Pin, Stochastic Variability in Sponsored Search Auctions: Observations and Models, in EC11: 12th ACM Conference on Electronic Commerce, ACM, June 2011
- Nikhil Singh, Dinan Gunawardena, Alexandre Proutiere, Bozidar Radunovic, Horia Vlad Balan, and Peter Key, Efficient and Fair MAC for Wireless Networks with Self-interference Cancellation, in WiOpt 2011, May 2011
- Bozidar Radunovic, Alexandre Proutiere, Dinan Gunawardena, and Peter Key, Exploiting Channel Diversity in White Spaces, no. MSR-TR-2011-53, 1 April 2011
- Furcy Pin and Peter Key, Stochastic Variability in Sponsored Search Auctions: Observations and Models, no. MSR-TR-2011-40, 29 March 2011
- Peter Key, Laurent Massoulie, and Don Towsley, Path selection and multipath congestion control, in Communications of the ACM, ACM, January 2011
2010
- Bozidar Radunovic, Dinan Gunawardena, Peter Key, Alexandre Proutiere, Nikhil Singh, Vlad Balan, and Gerald Dejean, Rethinking Indoor Wireless Mesh Design: Low Power, Low Frequency, Full-duplex, in WiMesh (SECON Workshop), IEEE Communications Society, June 2010
- Marshini Chetty, Richard Banks, Richard Harper, Tim Regan, Abigail Sellen, Christos Gkantsidis, Thomas Karagiannis, and Peter Key, Who's Hogging the Bandwidth?: The Consequences Of Revealing The Invisible In the Home, in CHI 2010, Association for Computing Machinery, Inc., 10 April 2010
- Yoram Bachrach, Peter Key, and Morteza Zadimoghaddam, Collusion in VCG Path Procurement Auctions, in WINE, 2010
2009
- Christos Gkantsidis, Thomas Karagiannis, Peter Key, Bozidar Radunovic, Elias Raftopoulos, and D. Manjunath, Traffic management and resource allocation in small wired/wireless networks, in Fifth ACM International Conference on emerging Networking EXperiments and Technologies (CoNEXT 2009) , Association for Computing Machinery, Inc., December 2009
- Peter Key and Alexandre Proutiere, Routing Games with Elastic Traffic , in Performance Evaluation Review, Association for Computing Machinery, Inc., September 2009
- Bozidar Radunovic, Dinan Gunawardena, Peter Key, Alexandre Proutiere, Nikhil Singh, Horia Vlad Balan, and Gerald Dejean, Rethinking Indoor Wireless: Low Power, Low Frequency, Full-duplex, no. MSR-TR-2009-148, 24 July 2009
- Gaurav Sharma, Ayalvadi Ganesh, and Peter Key, Performance Analysis of Contention Based Medium Access Control Protocols, in IEEE Trans. Information Theory, vol. 55, no. 4, pp. 1665 – 1682, IEEE, April 2009
- Bozidar Radunovic, Dinan Gunawardena, Alexandre Proutiere, Nikhil Singh, Vlad Balan, and Peter Key, Efficiency and Fairness in Distributed Wireless Networks Through Self-interference Cancellation and Scheduling, no. MSR-TR-2009-27, 12 March 2009
- Bozidar Radunovic, Christos Gkantsidis, Peter Key, and Pablo Rodriguez, Toward Practical Opportunistic Routing with Intra-session Network Coding for Mesh Networks, in ACM/IEEE Transactions on Networking, IEEE/ACM Transactions on Networking, 2009
2008
- Peter Key and Richard Gibbens, Coalition Games and Resource Allocation in Ad-Hoc Networks, in Bio-Inspired Computing and Communication (Biowire), vol. 5151/2008, pp. 387–398, Springer Verlag, Heidelberg, November 2008
- Thomas Karagiannis, Christos Gkantsidis, Peter Key, Elias Athanasopoulos, and Elias Raftopoulos, HomeMaestro: Distributed monitoring and diagnosis of performance anomalies in home networks, no. MSR-TR-2008-161, 29 October 2008
- Bozidar Radunovic, Christos Gkantsidis, Dinan Gunawardena, and Peter Key, Horizon: Balancing TCP over Multiple Paths in Wireless Mesh Network, in MobiCom'08, Association for Computing Machinery, Inc., 14 September 2008
- Richard Mortier, Thomas Karagiannis, and Peter Key, Address and traffic dynamics in a large enterprise network, no. MSR-TR-2008-98, July 2008
- Peter Key and Laurent Massoulié, Control of communication networks: welfare maximization and multipath transfers, in Philosophical Transactions of the Royal Society A, vol. 366, no. 1872, pp. 1955-1971, June 2008
- Thomas Karagiannis, Elias Athanasopoulos, Christos Gkantsidis, and Peter Key, HomeMaestro: Order from Chaos in Home Networks, no. MSR-TR-2008-84, May 2008
- Peter Key, Laurent Massoulié, and Dan-Cristian Tomozei, Non-metric coordinates for predicting network proximity, in IEEE Infocom 2008 Minisymposium, IEEE, Phoenix, April 2008
- H. Seferoglu (UC Irvine), A. Lakshmikantha (UIUC), A. Ganesh (University of Bristol), and Peter Key, Dynamic decentralized multi-channel MAC protocols, in Information Theory and Applications (ITA 08), Institute of Electrical and Electronics Engineers, Inc., UCSD, January 2008
- Bozidar Radunovic, Christos Gkantsidis, Peter Key, and Pablo Rodriguez, An Optimization Framework for Opportunistic Multipath Routing in Wireless Mesh Networks, in INFOCOM Minisymposium, 2008
2007
- Christos Gkantsidis, Wenjun Hu, Peter Key, Bozidar Radunovic, Pablo Rodriguez, and Steluta Gheorghiu, Multipath Code Casting for Wireless Mesh Networks, in CoNext 2007, ACM, New York, December 2007
- Christos Gkantsidis, Bozidar Radunovic, Peter Key, Steluta Gheorgiu, Wenjun Hu, and Pablo Rodriguez, Multipath Code Casting for Wireless Mesh Networks, no. MSR-TR-2007-67, June 2007
- Bozidar Radunovic, Christos Gkantsidis, Peter Key, Pablo Rodriguez, and Wenjun Hu, An optimization framework for practical multipath routing in wireless mesh networks, no. MSR-TR-2007-81, June 2007
- Peter Key, Laurent Massoulié, and Don Towsley, Path Selection and Multipath Congestion Control, in Proc. IEEE Infocom 2007, IEEE, May 2007
- Peter Key, Laurent Massoulié, and Don Towsley, Multipath Routing, Congestion Control and Load Balancing, in ICASSP 2007, April 2007
2006
- A.J. Ganesh, P.B. Key, D. Polis, and R. Srikant, Congestion Notification and Probing Mechanisms for Endpoint Admission Control, in IEEE/ACM Transactions on Networking, vol. 14, no. 3, pp. 568–578, June 2006
- Peter Key and Laurent Massoulié, Fluid models of integrated traffic and multipath routing, in Queueing Systems, vol. 53, no. 1, pp. 85–98, June 2006
- A. Ganesh, D. Gunawardena, P. Key, L. Massoulié, and J. Scott, Efficient quarantining of scanning worms: optimal detection and coordination, in Infocom 2006, IEEE, April 2006
- Gaurav Sharma, Ayalvaid Ganesh, and Peter Key, Performance Analysis of Contention Based Medium Access Control Protocols, in Infocom 2006, IEEE, April 2006
- Peter Key, Laurent Massoulié, and Don Towsley, Combining Multipath Routing and Congestion Control for Robustness, in CISS 2006, 40th Conference on Information Sciences and Systems, Institute of Electrical and Electronics Engineers, Inc., March 2006
- Laurent Massoulié and Peter Key, Schedulable regions and equilibrium cost for multipath flow control: the benefits of coordination, in CISS 2006, 40th Conference on Information Sciences and Systems, Institute of Electrical and Electronics Engineers, Inc., March 2006
2005
- Peter Key, Laurent Massoulie, and Don Towsley, Combined Multipath Routing and Congestion Control: a Robust Internet Architecture, no. MSR-TR-2005-111, August 2005
- Peter Key and Laurent Massoulié, Fluid Limits and Diffusion Approximations for Integrated Traffic Models, no. MSR-TR-2005-83, June 2005
- Supratim Deb, Ayalvadi Ganesh, and Peter Key, Resource allocation between persistent and transient flows, in IEEE/ACM Transactions on Networking, vol. 13, no. 2, pp. 302–315, IEEE/ACM Transactions on Networking, April 2005
Contact details
Dr Peter Key
Microsoft Research Cambridge
21 Station Road,
Cambridge CB1 2FB,
U.K

Opportunities
Economics/Game Theory Positions
We are actively looking for outstanding Researchers and Post-docs with a background in Economics, Algorithmic Game Theory or related areas to enhance and complement our existing research work in ad auctions, network economics/congestion pricing and reputation systems. Please email me directly with your CV if interested in applying.
Post-Doc and Researcher Positions
We have a small number of openings in the Systems and Networking group for Post-docs and Researchers. Candidates should hold a PhD, or expect to complete their PhD shortly, and should have a track record of publication in the leading conferences or journals. Further details can be found on the Cambridge Lab web page. On-line application tool.
Internships
We have opportunities for strong mid-term PhD candidates available throughout the year - please click on the link for detailed information. I am personally interested in taking on interns outside the summer - and in the areas of economics and game theory - please email me directly on this.
