Power Efficient Multimedia Communication over Wireless Channels

Xiaoan Lu, Elza Erkip, Yao Wang, David Goodman

Research output: Contribution to journalArticlepeer-review


In this work, we introduce an approach for minimizing the total power consumption of a mobile transmitter due to source compression, channel coding and transmission subject to a fixed end-to-end source distortion. We illustrate our approach both on an abstract class of sources and channels and on a realistic H.263 video transmission system through a wireless channel. Performance under different channel environments and implementation schemes are investigated. Our numerical analysis shows that optimized settings can reduce the total power consumption by a significant factor and prolong battery life considerably compared with fixed parameter settings.

Original languageEnglish (US)
Pages (from-to)1738-1751
Number of pages14
JournalIEEE Journal on Selected Areas in Communications
Issue number10
StatePublished - Dec 2003


  • Error resilience
  • Power allocation
  • Power consumption
  • Video transmission
  • Wireless channel

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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