Performance of coded Gaussian minimum shift keying

Abstract

In this paper, we present bit error performance for coded Gaussian minimum shift keying (GMSK). We consider the case where the communication channel consists of one or more partial-processing satellite links. The satellite on-board processor can demodulate, repacketize and remodulate the incoming data prior to transmission. We model the system by a cascade of binary symmetric channels followed by an additive white Gaussian noise channel. We investigate the performance of a turbo-code with two 16-state component codes and convolutional codes for this application through simulation. The interleaver design for turbo-codes is essential and we consider dithered relative prime interleavers, which have excellent flare performance.