A Game Theoretic Approach to Multi-User Spectrum Allocation
2009 (English)In: GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference / [ed] Ulema M, IEEE , 2009, 5425963- p.Conference paper (Refereed)
We consider the interaction of several transmit-receive pairs coexisting in the same area and communicating using the same portion of the spectrum. Using a game theoretic framework, each pair is regarded as a player whose payoff function is the individual link rate and power is allocated using the iterative water-filling algorithm. We find properties of the resulting Nash equilibria and derive conditions for when various operating points are achievable. The analysis presented herein extends previous work by characterizing the set of stable solutions for a multi-user system. Also, we show how the game can be modified to obtain better operating points in terms of sum rate compared to the iterative water-filling algorithm. The increase in performance corresponding to one such modification is evaluated and compared to the iterative water-filling algorithm by numerical simulations.
Place, publisher, year, edition, pages
IEEE , 2009. 5425963- p.
, IEEE Global Telecommunications Conference (Globecom), ISSN 1930-529X
game theory, iterative methods, multi-access systems, Nash equilibria, individual link rate, iterative water-filling algorithm, multiuser spectrum allocation, numerical simulations, payoff function, power allocation, transmit-receive pairs
IdentifiersURN: urn:nbn:se:kth:diva-29616DOI: 10.1109/GLOCOM.2009.5425963ISI: 000280579100345ScopusID: 2-s2.0-77951533515ISBN: 978-1-4244-4147-1OAI: oai:DiVA.org:kth-29616DiVA: diva2:409465
2009 IEEE Global Telecommunications Conference, GLOBECOM 2009; Honolulu, HI; United States; 30 November 2009 through 4 December 2009
QC 201104082011-04-082011-02-112014-09-26Bibliographically approved