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The diversity gain function is a unified metric for the asymptotic error performance of wireless communication systems. In this correspondence, we propose a theorem that relates the diversity gain function and the coding gain to the probability density function of the instantaneous signal-to-noise ratio (SNR) at the origin. It provides a general framework for analyzing the asymptotic reliability of...
Cooperative networks allow the nodes relaying each other's messages to enhance the transmission reliability over wireless fading channels by achieving cooperative diversity. Among the various relaying protocols, the amplify-and-forward (AF) strategy is well studied for its simplicity. However, to collect the cooperative diversity, there are two main issues that the AF protocol is facing. One is that...
Cooperative networks have caught a lot attention these days because they provide diversity which mitigates the deleterious wireless channel fading effects. So far, numerous strategies have been proposed to collect the cooperative diversity. In the link-adaptive strategy, the relay node scales the decoded symbols according to the signal-to-noise ratio (SNR) of the source-relay and the relay-destination...
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