An Adaptive UEP_BTC_STBC_OFDM System for Robust Video Transmission

An adaptive UEP_BTC_STBC_OFDM system is proposed to provide robust video transmission in dispersive fading channel. The system concatenates the Block Turbo Code (BTC) with the Space-Time Block Code (STBC) for an OFDM system, both the good error correcting capability of BTC and the concurrent large diversity gain characteristic of STBC can be achieved simultaneously. Furthermore, by employing the data partition of H.264 and different BTC codes together with different modulation approaches, the scheme is capable of adapting to channel conditions and maximize end-to-end QoS of video transmission with low encoding and decoding complexity. Simulation result shows that the proposed adaptive scheme achieved significant improvement in delivered video quality for specified channel condition and thus has better performance of video transmission