New generalized selection combining for BPSK signals in Rayleigh fading channels
نویسندگان
چکیده
We propose a new generalized selection combining (GSC) scheme that selects diversity branches out of ( ) 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 is found to be only dB inferior to the maximal ratio combining scheme ( ), when , in a Rayleigh fading channel.
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