Mobile Networks and Applications

, Volume 18, Issue 4, pp 535–552

Towards Energy-Efficiency in Selfish, Cooperative Networks

  • Chi Harold Liu
  • Jun Fan
  • Zhengguo Sheng
  • Xiumei Fan
  • Kin K. Leung
Article

DOI: 10.1007/s11036-012-0431-x

Cite this article as:
Liu, C.H., Fan, J., Sheng, Z. et al. Mobile Netw Appl (2013) 18: 535. doi:10.1007/s11036-012-0431-x
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Abstract

Cooperative communication has been proven effective in enhancing the performance of wireless networks, anda variety of techniques have been investigated to exploit the spatial diversity gain to provide reliable physical layer communications with multiple quality-of-service (QoS) requirements. In this paper, we propose an adaptive multi-relay selection with power allocation mechanism to offer energy fairness at each node for a cooperative network. Unlike traditional approaches where all nodes are considered to transmit in a collaborative manner, weexplicitly consider the situation where nodes exhibit some degree of selfish behavior. Specifically, we introduce anovel concept of the selfishness index and incorporate it into a utility function which denotes the degree a node can benefit from cooperative transmission. Theoretical analysis and extensive simulation results are supplemented toshow advantages in maximizing the network lifetime and guaranteeing the QoS in realistic wireless environments. We also consider the practical situation when nodes consume energy in mode switching, and carefully study the behavior of inter-cluster relay switching and the trade-off among network lifetime, switching cost and switching frequency.

Keywords

Cooperative communications Energy-efficiency Fairness Selfishness 

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Chi Harold Liu
    • 1
  • Jun Fan
    • 2
  • Zhengguo Sheng
    • 3
  • Xiumei Fan
    • 2
  • Kin K. Leung
    • 4
  1. 1.IBM ResearchBeijingChina
  2. 2.Beijing Institute of TechnologyBeijingChina
  3. 3.France Telecom Orange LabsBeijingChina
  4. 4.Imperial CollegeLondonUK

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