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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Stackelberg Contention Games in Multiuser Networks | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009 Article ID 305978 15 pages doi 10.1155 2009 305978 Research Article Stackelberg Contention Games in Multiuser Networks Jaeok Park1 and Mihaela van der Schaar2 department of Economics University of California Los Angeles UCLA Los Angeles CA 90095-1477 USA department of Electrical Engineering University of California Los Angeles UCLA Los Angeles CA 90095-1594 USA Correspondence should be addressed to Jaeok Park jpark31@ucla.edu Received 2 October 2008 Accepted 10 February 2009 Recommended by Eduard A. Jorswieck Interactions among selfish users sharing a common transmission channel can be modeled as a noncooperative game using the game theory framework. When selfish users choose their transmission probabilities independently without any coordination mechanism Nash equilibria usually result in a network collapse. We propose a methodology that transforms the noncooperative game into a Stackelberg game. Stackelberg equilibria of the Stackelberg game can overcome the deficiency of the Nash equilibria of the original game. A particular type of Stackelberg intervention is constructed to show that any positive payoff profile feasible with independent transmission probabilities can be achieved as a Stackelberg equilibrium payoff profile. We discuss criteria to select an operating point of the network and informational requirements for the Stackelberg game. We relax the requirements and examine the effects of relaxation on performance. Copyright 2009 J. Park and M. van der Schaar. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. Introduction In wireless communication networks multiple users often share a common channel and contend for access. To resolve the contention problem many different medium access control MAC .
