Performance of DPSK commutation signalling with RAKE receivers in multipath channels

The authors consider an anti-multipath modulation scheme called commutation signalling. The anti-multipath capabilities are studied by the use of computer simulations. In particular, multipath Rayleigh fading channels and multipath non-fading channels are considered with the assumption of a knowledge of the multipath delays at the receiver. The effects of correlation noise as the number of paths increases and the advantages or disadvantages of using the weaker multipath components in decision making are presented.