An Efficient UEP Transmission Scheme for MIMO-OFDM Systems 


Vol. 32,  No. 5, pp. 469-477, May  2007


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  Abstract

Most multimedia source coders exhibit unequal bit error sensitivity. Efficient transmission system design should therefore incorporate the use of matching unequal error protection (UEP). In this paper, we present and evaluate a flexible space-time coding system with unequal error protection. Multiple transmit and receive antennas and bit-interleaved coded modulation techniques are used combined with rate compatible punctured convolutional codes. A near optimum iterative receiver is employed with a multiple-in multiple-out inverse mapper and a MAP decoder as component decoders. We illustrate how the UEP system gain can be achieved either as a power or bandwidth gain compared to the equal error protection system (EEP) for the identical source and equal overall quality for both the UEP and EEP systems. An example with two/three transmit and two receive antennas using 8PSK modulation is given for the block fading channel.

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  Cite this article

[IEEE Style]

H. Lee, B. Lee, C. W. Sundberg, I. Lee, "An Efficient UEP Transmission Scheme for MIMO-OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 5, pp. 469-477, 2007. DOI: .

[ACM Style]

Heunchul Lee, Byeong-Si Lee, Carl-Erik W. Sundberg, and Inkyu Lee. 2007. An Efficient UEP Transmission Scheme for MIMO-OFDM Systems. The Journal of Korean Institute of Communications and Information Sciences, 32, 5, (2007), 469-477. DOI: .

[KICS Style]

Heunchul Lee, Byeong-Si Lee, Carl-Erik W. Sundberg, Inkyu Lee, "An Efficient UEP Transmission Scheme for MIMO-OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 5, pp. 469-477, 5. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880