Influence of Frequency Offset on Modified EGC Diversity Receiver

Abstract

In this paper a performance analysis of a modified M-ary phase-shift-keying (MPSK) signal diversity receiver with a predetection equal gain combiner (EGC) will be presented. The modification is in introducing a structure that performs the estimation with remodulation (ER). The EGC combining is realized by using a constant modulus algorithm (CMA). The influence of carrier frequency offset, length of ER structure and other parameters of the receiver will be examined.

Keywords

• Constant modulus algorithm
• diversity
• estimation with remodulation
• frequency offset
• phase-locked loop