Joint subcarrier and power allocation for multiuser OFDM systems using distributed auction game

Authors:
Rongqing Zhang;Lingyang Song;Zhu Han;Zhongshan Zhang;Bingli Jiao
Affiliations:
School of Electronics Engineering and Computer Science, Peking University, Beijing, China;School of Electronics Engineering and Computer Science, Peking University, Beijing, China;Electrical and Computer Engineering Department, University of Houston, Houston, TX;NEC China Laboratories, Beijing, China;School of Electronics Engineering and Computer Science, Peking University, Beijing, China
Venue:
WASA'11 Proceedings of the 6th international conference on Wireless algorithms, systems, and applications
Year:
2011

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Abstract

In this paper, we investigate resource allocation issue in a multiuser OFDM cellular network. Each user in the network intends to obtain a higher rate from the BS for its own data transmission (e.g., pictures or videos downloading), but the total transmission resource is limited at the BS. Thus, we formulated this resource allocation problem as an auction game, where the BS acts as the auctioneer and the users are the bidders. We then propose a novel joint subcarrier and power allocation algorithm using distributed auction game, in order to allocate the limited subcarriers and power effectively and maximize the total transmission rate subject to an overall power constraint with low-complexity and fairness. Finally, simulation results are presented to demonstrate the efficiency of the proposed auction-based algorithm.