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Comprehensive Performance Analysis of Two-Way Multi-Relay System with Amplify-and-Forward Relaying
Siye WANG Yanjun ZHANG Bo ZHOU Wenbiao ZHOU Dake LIU
IEICE TRANSACTIONS on Communications
Publication Date: 2014/03/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
two-way relaying, amplify-and-forward, channel estimation error, BER, outage probability,
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In this paper, we consider a two-way multi-relay scenario and analyze the bit error rate (BER) and outage performance of an amplify-and-forward (AF) relaying protocol. We first investigate the bit error probability by considering channel estimation error. With the derivation of effective signal-to-noise ratio (SNR) at the transceiver and its probability density function (PDF), we can obtain a closed form formulation of the total average error probability of two-way multi-relay system. Furthermore, we also derive exact expressions of the outage probability for two-way relay through the aid of a modified Bessel function. Finally, numerical experiments are performed to verify the analytical results and show that our theoretical derivations are exactly matched with simulations.