Accuracy of path-search is a factor to determine the performance of a CDMA system. Path delay difference tine becomes longer than a symbol period for high-speed transmission. In this paper, we propose a path-search method that can deal with large delay paths. This scheme was correlator with long scrambling code. In large delay spreading channel model (ITU-R Vehicular B model), proposed method is superior to coherently averaging method. We compare performance of CDMA system with a TDMA system that use DFE (Decision Feedback Equalizer).
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