Video transmission over MIMO-OFDM system: MDC and space-time coding-based approaches

  • Authors:
  • Haifeng Zheng;Congchong Ru;Chang Wen Chen;Lun Yu

  • Affiliations:
  • Department of Information and Communication Engineering, Fuzhou University, Fuzhou, Fujian, China;Department of Electronic Engineering, Tsinghua University, Beijing, China;Department of Electrical and Computer Engineering, Florida Institute of Technology, Melbourne, FL;Department of Information and Communication Engineering, Fuzhou University, Fuzhou, Fujian, China

  • Venue:
  • Advances in Multimedia
  • Year:
  • 2007

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Abstract

MIMO-OFDM is a promising technique for the broadband wireless communication system. In this paper, we propose a novel scheme that integrates multiple-description coding (MDC), error-resilient video coding, and unequal error protection strategy with hybrid space-time coding structure for robust video transmission over MIMO-OFDM system. The proposed MDC coder generates multiple bitstreams of equal importance which are very suitable for multiple-antennas system. Furthermore, according to the contribution to the reconstructed video quality, we apply unequal error protection strategy using BLAST and STBC space-time codes for each video bitstream. Experimental results have demonstrated that the proposed scheme can be an excellent alternative to achieve desired tradeoff between the reconstructed video quality and the transmission efficiency.