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

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

研究成果: Conference contribution

38 引文 斯高帕斯(Scopus)

摘要

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.

原文English
主出版物標題IEEE Wireless Communications and Networking Conference, WCNC
發行者Institute of Electrical and Electronics Engineers Inc.
頁面931-936
頁數6
ISBN(電子)0780373766
DOIs
出版狀態Published - 2002
事件2002 IEEE Wireless Communications and Networking Conference, WCNC 2002 - Orlando, United States
持續時間: 2002 3月 172002 3月 21

出版系列

名字IEEE Wireless Communications and Networking Conference, WCNC
2
ISSN(列印)1525-3511

Other

Other2002 IEEE Wireless Communications and Networking Conference, WCNC 2002
國家/地區United States
城市Orlando
期間02-03-1702-03-21

All Science Journal Classification (ASJC) codes

  • 一般工程

指紋

深入研究「Robust video transmission over wideband wireless channel using space-time coded OFDM systems」主題。共同形成了獨特的指紋。

引用此