Energy-spectrum efficiency tradeoff for video streaming over mobile ad hoc networks

Liang Zhou, Rose Qingyang Hu, Yi Qian, Hsiao Hwa Chen

Research output: Contribution to journalArticlepeer-review

141 Citations (Scopus)

Abstract

In this work, we investigate the properties of energy-efficiency (EE) and spectrum-efficiency (SE) for video streaming over mobile ad hoc networks by developing an energy-spectrum-aware scheduling (ESAS) scheme. To describe a practical mobile scenario, we use a random walk mobility model, in which each node can choose its mobility direction and velocity randomly and independently. Through rigorous analysis and extensive simulations, we demonstrate that the node mobility is beneficial to EE but not to SE. The contributions of this work are twofold: 1) We propose an ESAS scheme with a dynamic transmission range, which significantly outperforms the previous minimum-distortion video scheduling in terms of joint EE and SE performance; 2) We derive an achievable EE-SE tradeoff range and a tight upper/lower bound with respect to energy-spectrum efficiency index for various node velocities. We believe that this work helps to shed insights on the fundamental design guidelines on building an energy and spectrum efficient mobile video transmission system.

Original languageEnglish
Article number6502492
Pages (from-to)981-991
Number of pages11
JournalIEEE Journal on Selected Areas in Communications
Volume31
Issue number5
DOIs
Publication statusPublished - 2013 May 1

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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