Short BCH codes for wireless multimedia data

Short BCH codes for multimedia communication are examined in a typical fast fading channel. In adverse fading channel, burst errors degrade the quality of transmission badly. Generally, long BCH codes and large interleaving degree are adopted to improve the performance of system, thus causing inevitable long delay, which sometimes is fatal to multimedia data. We propose to employ short BCH codes (n<32) with medium interleaving depth on static images compressed by discrete-cosine-transformation (DCT), a widely used compression method in multimedia data. The structure of coding meets the rigorous delay request of multimedia communication. Simulation results amply demonstrate the validity of the proposed scheme in fading environment. The aspects of delay and reliability are both satisfied.