Comparison between Coherent and Non Coherent Technique for GMSK and MSK Signals

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ABSTRACT:

Gaussian minimum shift keying is a spectrum efficient modulation scheme. The GMSK is better than normal MSK. For avoiding the interference between adjacent signals have to use GMSK modulation scheme.The coherent receiver implementing is easy. But the non-coherent receiver implementing is a complex. The non-coherent receiver produces a complex interference effects in a multipath channel. In this paper we present some analysis and performance between coherent and non-coherent receiver for GMSK and DQPSK and shows the simulation results

KEYWORDS:

GMSK; Modulation; Coherent Receiver; Non-coherent receiver