Energy efficiency and spectral efficiency tradeoff in device-to-device (D2D) communications

Zhenyu Zhou, Mianxiong Dong, Kaoru Ota, Jun Wu, Takuro Sato

Research output: Contribution to journalArticle

135 Citations (Scopus)

Abstract

In this letter, we investigate the tradeoff between energy efficiency (EE) and spectral efficiency (SE) in device-to-device communications underlaying cellular networks with uplink channel reuse. The resource allocation problem is modeled as a noncooperative game, in which each user equipment is self-interested and wants to maximize its own EE. Given the SE requirement and maximum transmission power constraints, a distributed energy-efficient resource allocation algorithm is proposed by exploiting the properties of the nonlinear fractional programming. The relationships between the EE and SE tradeoff of the proposed algorithm and system parameters are analyzed and verified through computer simulations.

Original languageEnglish
Article number6855365
Pages (from-to)485-488
Number of pages4
JournalIEEE Wireless Communications Letters
Volume3
Issue number5
DOIs
Publication statusPublished - 2014 Oct 1

Keywords

  • D2D communication
  • EE and SE tradeoff
  • noncooperative game
  • nonlinear fractional programming

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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