Performance Analyses of Two-Way AF Relaying over Nakagami-m Frequency-Selective Fading Channels

In this paper, taking the multipath spread of the channel into account, the performance of two-way amplify-and-forward relaying over Nakagami-m frequency-selective fading channels is analyzed. Based on the channel state information (CSI), the exact probability density functions of the received signal-to-noise power ratio (SNR) for semi-blind and channel state information assisted AF relaying are derived first, respectively. Their corresponding moment generating functions for both relay schemes are also presented. According to these statistics, the average symbol error rate can be found, and then verified by computer simulations under Nakagami-m frequency-selective fading channels.

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