Overlapping coalition formation games for cooperative interference management in small cell networks

Zengfeng Zhang, Lingyang Song, Zhu Han, Walid Saad, Zhaohua Lu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

24 Scopus citations

Abstract

In this paper, we study the problem of cooperative interference management in an OFDMA two-tier small cell network. In particular, we propose a new approach for allowing the small cells to cooperate, so as to optimize their sum-rate, while cooperatively satisfying their maximum transmit power constraints. Unlike existing works which assume that only disjoint groups of cooperative small cells can emerge, we formulate the small cells' cooperation problem as an overlapping coalition formation game. In this game, each small cell base station can choose to participate in one or more cooperative groups (or coalitions) simultaneously, so as to optimize the tradeoff between the benefits and costs associated with cooperation. We study the properties of the proposed game and we show that it exhibits negative externalities due to interference. Then, we propose a novel decentralized algorithm that allows the small cell base stations to interact and self-organize into a stable overlapping coalitional structure. Simulation results show that the proposed algorithm results in a notable performance advantage in terms of the total system sum-rate, relative to the noncooperative case and the classical algorithms for coalitional games with non-overlapping coalitions.

Original languageEnglish (US)
Title of host publication2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
Pages643-648
Number of pages6
DOIs
StatePublished - Aug 21 2013
Event2013 IEEE Wireless Communications and Networking Conference, WCNC 2013 - Shanghai, China
Duration: Apr 7 2013Apr 10 2013

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511

Other

Other2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
CountryChina
CityShanghai
Period4/7/134/10/13

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Zhang, Z., Song, L., Han, Z., Saad, W., & Lu, Z. (2013). Overlapping coalition formation games for cooperative interference management in small cell networks. In 2013 IEEE Wireless Communications and Networking Conference, WCNC 2013 (pp. 643-648). [6554639] (IEEE Wireless Communications and Networking Conference, WCNC). https://doi.org/10.1109/WCNC.2013.6554639