By Topic

Distributed Backlog-Driven Power Control in Wireless Networking

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Dua, A. ; Stanford Univ., Stanford ; Bambos, N.

We address the problem of distributed power control for supporting packetized traffic in wireless ad hoc networks (e.g. 802.11 based wireless LANs). The interference experienced by a link coexisting with other links in a shared wireless medium is responsive to the actions of the transmitter on the link. Consequently, the evolution of seemingly independent queues at autonomously acting transmitters is tightly entangled through the shared wireless channel. Thus, an exact analysis of the distributed power control problem which also incorporates queuing dynamics is intractable. To establish a performance benchmark, we first design the optimal centralized backlog aware power control algorithm (Oracle) in a dynamic programming (DP) framework. We then propose a heuristic backlog aware distributed power control algorithm (BDD). The implementation of BDD is based on randomized selection from lookup tables which are computed offline at each transmitter. The computational complexity and memory requirements for BDD are independent of the network size and topology, making it attractive from a practical perspective. Experimental results demonstrate that BDD closely matches Oracle in performance and enhances system throughput by 20-30% compared to benchmark backlog insensitive power control algorithms (e.g. Foschini-Miljanic).

Published in:

Local & Metropolitan Area Networks, 2007. LANMAN 2007. 15th IEEE Workshop on

Date of Conference:

10-13 June 2007