A Pipeline Sliding Window Max-Log-Map Turbo Decoder

Turbo codes have become an attractive forward error correction scheme for wireless communication systems. MAP algorithm is the optimization algorithm for turbo-codes. But its implementation is complex. Max-Log-MAP algorithm is a sub-optimization algorithm of turbo-codes, which offers good compromise between performance and complexity for implementation. The authors present a re configurable turbo decoder based on Max-Log-MAP algorithm implemented with sliding window method and pipeline architecture. The sliding window (SW) method can reduce memory size. Pipeline decoding schemes can reduce decoding delay and improve throughput. The structure we proposed can reduce decoding delay obviously. It can be used in wireless communication.