Enabling Green Wireless Networking With Device-to-Device Links: A Joint Optimization Approach

Chenfei Gao, Jian Tang, Xiang Sheng, Weiyi Zhang, Shihong Zou, Mohsen Guizani

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Device-to-device (D2D) communication has emerged as a promising technique for improving capacity and reducing power consumption in wireless networks. Most existing works on D2D communications either targeted CDMA-based single-channel networks or aimed at maximizing network throughput. In this paper, we, however, aim to enable green D2D communications in OFDMA-based wireless networks. We formally define an optimization problem based on a practical link data rate model, whose objective is to minimize total power consumption while meeting user data rate requirements. We propose solving it using a joint optimization approach by presenting two effective and efficient algorithms, which both jointly determines mode selection, channel allocation and power assignment. It has been shown by extensive simulation results that the proposed algorithms can achieve over 68% power savings, compared to several baseline methods.

Original languageEnglish (US)
Article number7360240
Pages (from-to)2770-2779
Number of pages10
JournalIEEE Transactions on Wireless Communications
Volume15
Issue number4
DOIs
StatePublished - Apr 1 2016

Keywords

  • D2D
  • Green wireless networking
  • joint optimization
  • mode selection

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Applied Mathematics

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