Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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New Evaluation on the Selective Diversity Systems for the Detection of M-ary PSK & DPSK Signals over Rayleigh Fading Channels

  • Kim, Chang-Hwan (Design & Supervision for Communication, Suyang Engineering Co. Ltd.) ;
  • Kim, Hyeong-Kyo (Dept. of Information and Telecommunications Engineering, Hanshin University)
  • Published : 2007.12.31
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Abstract

When the M-ary signal experiences the Rayleigh fading, the diversity schemes can reduce the effect of fading since the probability that all the signals components will fade simultaneously is reduced considerably. The symbol error probabilities for various M-ary signals, such as MDPSK(M-ary DPSK) and MPSK(M-ary PSK), are mathematically derived for the Selection Combining 2(SC-2) and Selection Combining 3(SC-3) demodulation system which requires a less complex receiver than maximum ratio combining(MRC). The propagation model used in this paper is the frequency-nonselective slow Rayleigh fading channel corrupted by the additive white gaussian noise(AWGN). The numerical results presented in this paper are expected to provide information for the design of radio system using M-ary modulation method for above mentioned channel environment.

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References

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