NDLI: A Game-Theoretic Analysis of Decode-and-Forward Cooperation in Rayleigh Fading Channels

Content Provider	IEEE Xplore Digital Library
Author	Yingda Chen Kishore, S.
Copyright Year	2007
Description	Author affiliation: Lehigh Univ., Bethlehem (Yingda Chen; Kishore, S.)
Abstract	A game-theoretic analysis of decode and forward cooperative communications is presented for Rayleigh fading channels. The channel is studied as a two-state Markov model and cooperation is modeled as a repeated game in which selfish user terminals seek to maximize their own payoff, a utility function that monotonically increases with signal-to-noise ratio. Nash equilibria are investigated for both convex and concave utility functions. Results show a mutually cooperative Nash Equilibrium can always be obtained when convex utility functions* are used and users care somewhat about future performance. Concave utility functions may not always support a mutually cooperative Nash Equilibrium, especially under adverse channel conditions. Examinations of two widely-applied concave utility functions, however, demonstrate that mutual cooperation is more likely when users place more value on future performance. Additionally, techniques that improve effective channel conditions, e.g., use of multiple transmit antennas, further encourage cooperation.
Starting Page	306
Ending Page	311
File Size	1850045
Page Count	6
File Format	PDF
ISBN	1424410633
DOI	10.1109/CISS.2007.4298318
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-03-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Base stations Protocols Transmitting antennas Power control Rayleigh channels Nash equilibrium Decoding Game theory Signal to noise ratio
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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