Chip Interleaved Multirate and Multimedia Transmission in Self-Encoded Communication System with Iterative Detection over Fading Channels

DOI: 10.4236/ijcns.2011.410077   PDF   HTML     3,931 Downloads   6,556 Views   Citations


In this paper, we investigate the self-encoded multirate and the multimedia (SEMM) transmission. In SEMM system, the spreading codes are derived from its own previously transmitted bits rather than the pseudorandom code generator. We employ block chip interleaving at the transmitter to combat the deep fading over the channels. At the receiver, decorrelation scheme separates the combined signals not only to reduce the crosstalk between different applications, but also provide a better estimation for the despreading sequence. Interference cancelation (IC) is also adopted to improve both the correlation detection and iterative detection (ID) performance. The simulation results show that the proposed scheme significantly improves performance over fading channels.

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L. Chi, W. Jang and L. Nguyen, "Chip Interleaved Multirate and Multimedia Transmission in Self-Encoded Communication System with Iterative Detection over Fading Channels," International Journal of Communications, Network and System Sciences, Vol. 4 No. 10, 2011, pp. 630-637. doi: 10.4236/ijcns.2011.410077.

Conflicts of Interest

The authors declare no conflicts of interest.


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