Abstract

The cooperative communication has a great applications in the past years. In this a set of nodes can form a distributed multiple-antenna system and transmit in a cooperative manner. So cooperative communication is a good technique which can avoid the attenuation of signals due to fading and path loss by providing gains. The reliability of the cooperative communication is increased by sharing informations among multiple antenna. But the cooperation may introduce interferences and it will degrade the performance of the system. In this paper deriving a criterion, by analyzing and comparing the outage performances of cooperative and non-cooperative strategies. The implementation of cooperation or non-cooperation in a communication can be determine by using this criterion. The comparison is based on the outage probability due to the fixed rate of transmission.

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