Unequal Error Protection for SPIHT-Coded Image Transmission Based on MIMO Adaptive Channel Assignment Policy

Author

Liu, Yong ; Men, Ai-Dong ; Quan, Zi-yi ; Yang, Bo

Author_Institution

Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., Beijing

fYear

2009

fDate

22-24 Jan. 2009

Firstpage

781

Lastpage

785

Abstract

In this paper, a joint source-channel coding (JSCC) scheme for unequal error protection (UEP) based SPIHT-coded image transmission over wireless channels is proposed. SPIHT-coded image information is divided into different substreams according to their different importance. Each substream is transmitted differentially over MIMO system based on MIMO adaptive channel assignment policy (ACAP) to achieve unequal error protection. ACAP is able to assign different important substreams to corresponding subchannels with different qualities of MIMO in terms of estimated subchannel state information based on a training preamble. Simulation results show that the scheme with ACAP can achieve UEP for image transmission. The quality of reconstructed image improves obviously compared to the scheme without ACAP.

Keywords

MIMO communication; channel coding; image coding; wireless channels; MIMO adaptive channel assignment policy; SPIHT-coded image transmission; joint source-channel coding scheme; unequal error protection; wireless channels; Computer errors; Discrete wavelet transforms; Error correction; Error correction codes; Image coding; Image communication; Image reconstruction; MIMO; Space technology; Transmitting antennas; JSCC; MIMO; SPIHT; UEP;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Computer Control, 2009. ICACC '09. International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4244-3330-8

Type

conf

DOI

10.1109/ICACC.2009.116

Filename

4777449