Hybrid ARQ method for packet data transmission over wireless channel

The present invention is a hybird ARQ scheme for packet data transmission over wireless channel. For the first transmission, only the single turbo product code is transmitted. The transmitter responds to the retransmission request by sending the puncture code derived from the output of turbo-ARQ coding structure. The receiver emloys inner iterative decoding algorithm for turbo product code and outer iterative decoding algorithm corresponding to turbo-ARQ decoding structure for retransmitted packets. Duplex turbo iterative dexoding used in this scheme can improve decoding performance and further increase system throughput and reliability. The proposed scheme jointly used turbo product code and turbo -ARQ structure thus to provide a better performance with tolerable complexity.