Uplink decentralized joint bandwidth and power allocation for energy-efficient operation in a heterogeneous wireless medium

Muhammad Ismail Muhammad, Amila Tharaperiya Gamage, Weihua Zhuang, Xuemin Shen, Erchin Serpedin, Khalid Qaraqe

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

In this paper, energy efficient uplink communications are investigated for battery-constrained mobile terminals (MTs) with service quality requirements and multi-homing capabilities. A heterogeneous wireless medium is considered, where MTs communicate with base stations (BSs) and access points (APs) of different networks with overlapped coverage. Different from the existing works, we develop a quality of service (QoS)-based optimization framework for joint uplink bandwidth and power allocation to maximize energy efficiency for a set of MTs with multi-homing capabilities. The proposed framework is implemented in a decentralized architecture, through coordination among BSs/APs of different networks and MTs, which is a desirable feature when different networks are operated by different service providers. A suboptimal framework is presented with a reduced computational complexity as compared with the optimal framework. Simulation results demonstrate the improved performance of both the optimal and suboptimal frameworks over a state-of-the-art benchmark.

Original languageEnglish
Article number7054502
Pages (from-to)1483-1495
Number of pages13
JournalIEEE Transactions on Communications
Volume63
Issue number4
DOIs
Publication statusPublished - 1 Apr 2015

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Keywords

  • Energy efficient communications
  • green communications
  • heterogeneous wireless medium
  • multi-homing resource allocation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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