Optimal power control and source-channel coding for delay constrained traffic over wireless channels

Tim Holliday, Andrea Goldsmith

Research output: Contribution to journalConference articlepeer-review

22 Scopus citations

Abstract

A novel dynamic programming formulation is proposed for computing optimal power control, source coding, and channel coding policies when the source traffic has tight delay constraints. Our solution minimizes power consumption subject to constraints on delay for all channel gains. This provides a much tighter delay bound than au average delay constraint, averaged over time varying channel gains. We present numerical results that show the tighter delay constraints come at a significant cost in terms of power consumption. However, we also show this power penalty can be greatly mitigated through optimal source-channel coding.

Original languageEnglish (US)
Pages (from-to)831-835
Number of pages5
JournalIEEE International Conference on Communications
Volume2
StatePublished - 2002
Externally publishedYes
Event2002 International Conference on Communications (ICC 2002) - New York, NY, United States
Duration: Apr 28 2002May 2 2002

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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