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Title: Subcarrier assignment in multi-cell OFDMA systems via interference minimization game
Authors: La, Quang Duy
Chew, Yong Huat
Soong, Boon Hee
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems
Issue Date: 2012
Source: La, Q. D., Chew, Y. H., Soong, B. H. (2012). Subcarrier assignment in multi-cell OFDMA systems via interference minimization game. IEEE Wireless Communications and Networking Conference (WCNC) 2012, pp.1321-1325.
Abstract: Fair and efficient subcarrier assignment for an infrastructure-based cellular OFDMA network is a challenging problem due to interferences from neighboring cells. In this paper, we investigate this problem using potential game theory, where the utility function adopted is meant for minimizing the co-channel interferences among different players. Each of these players is considered to be a cell with a central base station (BS) and its multiple mobile stations (MS) in a downlink scenario. Under such formulation, we establish the potential game. Hence, a Nash equilibrium (NE) will be guaranteed for the proposed game, which can be achieved via certain strategy dynamics such as the best/better responses. We propose our iterative algorithm for obtaining the NEs and present numerical results to evaluate the performance of our game. Improvement in efficiency and fairness is observed in this study.
DOI: 10.1109/WCNC.2012.6213984
Rights: © 2012 IEEE
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Conference Papers

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