Comparison of the combining methods used in space diversity

Abstract EN

The basic concept of diversity; where two or more inputs at the receiver are used to get uncorrelated signals.

The aim of this paper is an attempt to compare some possible combinations of diversity reception and MLSE detection techniques.

Various diversity combining techniques can be distinguished: Equal Gain Combining (EGC), Maximal Ratio Combining (MRC), Selection Combining and Selection Switching Combining (SS).The simulation results shows that the MRC give better performance than the other types of combining (about 1 dB compare with EGC and 2.5~3 dB compare with selection and selection switching combining).