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Two-way relaying is generally designed assuming the availability of perfect channel state information (CSI) at the network nodes. However, perfect CSI is not available in practice. This paper investigates the impact of Gaussian estimation errors on the two-way relaying performance in independent and non identically distributed Rayleigh fading channels. Specifically, we derive the cumulative distribution...
This paper addresses the power allocation and relay positioning problems in Amplify-and-forward cooperative networks over Weibull fading channels. We study adaptive power allocation (PA) with fixed relay location, optimal relay location with fixed power allocation, and joint optimization of the PA and relay location under total transmit power constraint, in order to minimize the outage probability...
In this paper, we examine the effect of channel estimation error on the error and outage probabilities of a multi-relay system with amplify-and-forward relaying over frequency-flat Rician fading channel. We consider orthogonal relaying and study both conventional cooperative systems (i.e., all relays participate in the relaying phase) and opportunistic cooperative systems (i.e., only the best relay...
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