METHOD FOR CHANNEL EQUALIZATION USING SOFT OUTPUT VITERBI ALGORITHM (SOVA) AND RECEIVER THEREOF

摘要

PURPOSE: An SOVA(Soft Output Viterbi Algorithm) channel equalization method and a receiver using the same are provided to facilitate VLSI implementation and DSP programming which are used in a system by reducing the complexity of SOVA. CONSTITUTION: An SOVA(Soft Output Viterbi Algorithm) channel equalization method is composed of computing the symbol soft output value by using the symbol in which "n" th symbol is not maximum likelihood sequence symbol of the maximum likelihood sequence symbol and the next likelihood sequence symbol, and computing the bit soft output value by using the symbol soft output value. The "n" is a natural number.