Robust video transmission over wideband wireless channel using space-time coded OFDM systems

Chih Hung Kuo, Chang-Su Kim, C. C. Jay Kuo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

36 Citations (Scopus)

Abstract

A space-time coded orthogonal frequency-division multiplexed (STC-OFDM) system is proposed to transmit layered video signals over wireless channels. The space-time coding can provide a diversity gain for the multiple-antenna system while OFDM can alleviate the frequency-selective fading effect. An input video sequence is compressed and partitioned into layers with different priorities. Then, an unequal error protection scheme based on the product Reed-Solomon (RS) codes is employed to provide different levels of protection to different layers. At the receiver, a minimum mean square error (MMSE) detector with interference cancellation (IC) is integrated with the space-time decoder to reconstruct the desired signal effectively. We derive an analytic bound for the error probability, and conduct experiments for the transmission of the H.263 video bitstream. It is shown that the proposed scheme enhances the PSNR performance significantly in the environment with a moderate signal-to-noise ratio.

Original languageEnglish
Title of host publicationIEEE Wireless Communications and Networking Conference, WCNC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages931-936
Number of pages6
Volume2
ISBN (Print)0780373766
DOIs
Publication statusPublished - 2002 Jan 1
Externally publishedYes
Event2002 IEEE Wireless Communications and Networking Conference, WCNC 2002 - Orlando, United States
Duration: 2002 Mar 172002 Mar 21

Other

Other2002 IEEE Wireless Communications and Networking Conference, WCNC 2002
CountryUnited States
CityOrlando
Period02/3/1702/3/21

ASJC Scopus subject areas

  • Engineering(all)

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    Kuo, C. H., Kim, C-S., & Jay Kuo, C. C. (2002). Robust video transmission over wideband wireless channel using space-time coded OFDM systems. In IEEE Wireless Communications and Networking Conference, WCNC (Vol. 2, pp. 931-936). [993396] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCNC.2002.993396