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Method and apparatus for implementing a traceback maximum- likelihood decoder in a hypercube network
Method and apparatus for implementing a traceback maximum- likelihood decoder in a hypercube network
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机译:在超立方体网络中实现回溯最大似然解码器的方法和装置
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摘要
A method and a structure to implement maximum-likelihood decoding of convolutional codes on a network of microprocessors interconnected as an n-dimensional cube (hypercube). By proper reordering of states in the decoder, only communication between adjacent processors is required. Communication time is limited to that required for communication only of the accumulated metrics and not the survivor parameters of a Viterbi decoding algorithm. The survivor parameters are stored at a local processor's memory and a trace-back method is employed to ascertain the decoding result. Faster and more efficient operation is enabled, and decoding of large constraint length codes is feasible using standard VLSI technology.
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