New generalized selection combining for BPSK signals in Rayleigh fading channels

Young Gil Kim, Sang Wu Kim

Research output: Contribution to conferencePaperpeer-review

7 Scopus citations


We propose a new generalized selection combining (GSC) scheme that selects m diversity branches out of L (≥ m) diversity branches based on the magnitude of log-likelihood ratio (LLR), which, for BPSK signals, is proportional to the product of the fading amplitude and the matched filter output. The proposed GSC is shown to provide a significant power gain over the conventional GSC which selects diversity branches based on signal-to-noise ratio. The proposed GSC scheme for m = 3 is found to be only 0.3 dB inferior to the maximal ratio combining scheme (m = L), when L = 8, in a Rayleigh fading channel.

Original languageEnglish
Number of pages5
StatePublished - 2001
EventIEEE Global Telecommunicatins Conference GLOBECOM'01 - San Antonio, TX, United States
Duration: 25 Nov 200129 Nov 2001


ConferenceIEEE Global Telecommunicatins Conference GLOBECOM'01
Country/TerritoryUnited States
CitySan Antonio, TX


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