UEP of progressive images in wireless channels

Minyi Zhao, Ali Akansu

Research output: Contribution to journalArticlepeer-review

Abstract

We present a general optimization method of rate allocation for embedded image sources over fading channels under unequal error protection (UEP). 2-state Markov chain or Gilbert-Elliott (G-E) channel models are exploited to approximate slowly fading channels in wireless communications in which each state corresponds to a binary symmetric channel (BSC). Under the assumption that exact knowledge of channel state information (CSI) is not available, the partition of the bit stream, the allocation of source/channel coding rate, and the number of protection levels for UEP schemes are all optimized by using the statistics of the G-E models and maximization of the expected error-free source bit stream length. Experiment results lead to different rate allocation strategies from previous ones in some channel conditions and the performance improvement is up to 0.4 dB.

Original languageEnglish (US)
Pages (from-to)479-483
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume2
Issue number52 ND
StatePublished - Dec 1 2000

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'UEP of progressive images in wireless channels'. Together they form a unique fingerprint.

Cite this