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A power-and-bandwidth efficient cooperative communications protocol where a sensor node assists two others for their data transmission to a clusterhead in WSNs (wireless sensor networks) using LEACH (low-energy adaptive clustering hierarchy) is proposed in this paper. Its closed-form BER expression which generalizes BER one for the decode-and-forward protocol (DF) is also derived. We proved that the...
Cooperative communications among the users in the multiple access wireless environments is an efficient way to obtain the powerful benefits of multi-antenna system without the demand for physical arrays. This paper proposes a solution to optimize the weights of partnering user's signal for the minimum error probability at the output of maximum likelihood (ML) detector. Found weights adapt the propagation...
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