Abstract
Selection cooperation is an attractive cooperative strategy for wireless networks due to its simplicity and efficiency. In this paper, we consider a heterogeneous cooperative network consisting of different kinds of nodes with low-cost radios where the activities of one kind of nodes are triggered by the other kinds of nodes. This is a common scenario for many networks, such as wireless sensor networks. By exploiting the transmission relationship between heterogeneous nodes, we propose a selection cooperation protocol where inducing nodes can cooperate with the following nodes after their own transmissions for improving the communication reliability of the latter nodes. Through performance analysis, we show an interesting feature that the diversity-multiplexing tradeoff of the proposed protocol does not rely on the best relay selection method and the protocol always achieves the full diversity gain. We further develop an energy-efficient best relay selection method based on power control where the power consumption is minimized without decreasing the full diversity order. Simulation results demonstrate the good performance of the protocol and the remarkable energy reduction of the proposed best relay selection method.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (Grant No. 61301125), the Fundamental and Advanced Research Program of Chongqing (Grant No. cstc2013jcyjA40008), and the Foundation for University Youth Key Teacher of Chongqing.
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Li, M., Yu, M., Wang, H. et al. Selection Cooperation in Heterogeneous Cooperative Networks. Wireless Pers Commun 75, 2089–2102 (2014). https://doi.org/10.1007/s11277-013-1455-7
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DOI: https://doi.org/10.1007/s11277-013-1455-7