Joint opportunistic power scheduling and end-to-end rate control for wireless ad hoc networks

Jang-Won Lee, Ravi R. Mazumdar, Ness B. Shroff

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

It is known that opportunistic scheduling that accounts for channel variations due to mobility and fading can give substantial improvement over nonopportunistic schemes. However, most work on this subject has focused on single-hop cellular types of architectures. The situation is quite different in ad hoc networks due to the inherent multihop nature of transmissions. In this paper, we present a joint opportunistic power scheduling and end-to-end rate control scheme for wireless ad hoc networks. We model the time-varying wireless channel as a stochastic process and formulate a stochastic optimization problem, which aims at maximizing system efficiency by controlling the power allocation of each link and the data rate of each user in the system. The joint power scheduling and rate control algorithm is obtained by using stochastic duality and implemented via stochastic subgradient techniques. We illustrate the efficacy of our approach via numerical examples.

Original languageEnglish
Pages (from-to)801-809
Number of pages9
JournalIEEE Transactions on Vehicular Technology
Volume56
Issue number2
DOIs
Publication statusPublished - 2007 Mar 1

Fingerprint

Rate Control
Wireless Ad Hoc Networks
Wireless ad hoc networks
Scheduling
Opportunistic Scheduling
Subgradient
Stochastic Optimization
Power Allocation
Multi-hop
Ad Hoc Networks
Fading
Control Algorithm
Efficacy
Stochastic Processes
Time-varying
Duality
Ad hoc networks
Optimization Problem
Random processes
Numerical Examples

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

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Joint opportunistic power scheduling and end-to-end rate control for wireless ad hoc networks. / Lee, Jang-Won; Mazumdar, Ravi R.; Shroff, Ness B.

In: IEEE Transactions on Vehicular Technology, Vol. 56, No. 2, 01.03.2007, p. 801-809.

Research output: Contribution to journalArticle

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