Evaluation on the Selective Combining for the Detection of M-ary DPSK Signals over Nakagami Fading Channels

Na, Seung-Gwan; Kim, Chang-Hwan; Jin, Yong-Ok

doi:2007.7.2.74

J. Electromagn. Eng. Sci > Volume 7(2); 2007 > Article

Journal of the Korean Institute of Electromagnetic and Science 2007;7(2):74-82.
DOI: https://doi.org/10.5515/JKIEES.2007.7.2.074

Evaluation on the Selective Combining for the Detection of M-ary DPSK Signals over Nakagami Fading Channels

Seung-Gwan Na¹, Chang-Hwan Kim², Yong-Ok Jin¹

¹Dept Information and Communication, Kyunghee University
²Design & Supervision for Communication, Suyang Engineering Co, Ltd

Abstract

The performances of M-ary DPSK(MDPSK) for diversity reception theoretically are derived, using an L-branch selection combining(SC) in frequency-nonselective slow Nakagami fading channels. For integer values of the Nakagami fading parameter m, An exact closed-form symbol error rate(SER) multichannel performance that can be easily evaluated via numerical integration is presented. Finally, we compare these analyses with numerical analyses with integral-form expressions for the performance of MDPSK signals under the effect of two-branch SC diversity over slow and nonselective Rician fading channels with additive white Gaussian noise(AWGN).

Key words: MDPSK, SC, Nakagami Fading, Rician Fading, SER