An MLSE receiver using channel classification for Rayleigh fadingchannels

摘要

We propose a channel classification method that identifies thendelay path profile of Rayleigh fading channels, which can be used innconjunction with conventional maximum-likelihood sequence estimationn(MLSE) receivers. The proposed method determines the appropriate numbernof delay taps for the MLSE trellis, based on a decision variablenobtained from multiple traffic bursts. By formulating the decisionnvariable using the F-distribution, we derive exact expressions fornmisclassification probability. A new MLSE receiver structure thatnutilizes the channel classification method is described, and bit errornrate (BER) simulation results are presented to demonstrate thenperformance improvement. The particular application which is discussednis the IS-136 TDMA standard