Wavelet domain diversity method for transmission of images over wireless channels

Liane C. Ramac, Pramod K. Varshney

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

We propose a wavelet domain diversity combining method to combat errors during image transmission on wireless channels. For images represented in the wavelet domain, diversity is used to obtain multiple data streams corresponding to the transmitted image at the receiver. These individual image data streams are combined to form a composite image with higher perceptual quality. Both uncompressed and compressed images are considered. The SPIHT algorithm is used for image compression. Diversity combining methods for both uncompressed and compressed images exploit the characteristics of the wavelet transform. For compressed images, unequal error protection is employed in conjunction with diversity combining. Simulation results demonstrate that the quality of the received image can be significantly improved.

Original languageEnglish (US)
Pages (from-to)891-898
Number of pages8
JournalIEEE Journal on Selected Areas in Communications
Volume18
Issue number6
DOIs
StatePublished - Jun 1 2000

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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