Power allocation and relay selection in multi-source cooperative networks

被引：2
|
作者：
Hui H. [1 ,2 ]
Zhu S.-H. [1 ]
Lü G.-M. [1 ]
Sun X.-D. [1 ]
机构：
[1] School of Electronics and Information Engineering, Xi'an Jiaotong University
[2] School of Automation and Information Engineering, Xi'an University of Technology
来源：
Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2010年 / 32卷 / 10期
关键词：
Amplify-and-Forward(AF); Cooperative communications; Multi-source cooperation; Power allocation; Relay selection;
D O I：
10.3724/SP.J.1146.2009.01340
中图分类号：
学科分类号：
摘要：
In order to minimizing the total transmit power while guaranteeing the outage performance at the same time, in this paper a distributed power allocation and relay selection scheme is proposed for amplify-and-forward cooperative networks with multiple sources and multiple relays. In the proposed scheme, sources select their relays independently, and introduce channel-related timers to compete for their preferred relay. Then the selected relays independently determine whether to forward the messages or not according to a forwarding threshold. Simulation results show that the proposed scheme can reduce the total transmit power of the network significantly and has a similar performance to the optimal central-controlled scheme with a much lower overhead.
引用
收藏
页码：2446 / 2451
页数：5
相关论文
共 9 条
  • [1] Sendonaris A., Erkip E., Aazhang B., User cooperation diversity-Part I and II, IEEE Transactions on Communications, 51, 11, pp. 1927-1948, (2003)
  • [2] Laneman J.N., Tse D.N.C., Wornell G.W., Cooperative diversity in wireless networks: Efficient protocols and outage behavior, IEEE Transactions on Information Theory, 50, 12, pp. 3062-3080, (2004)
  • [3] Chen M., Serbetli S., Yener A., Distributed power allocation strategies for parallel relay networks, IEEE Transactions on Communications, 7, 2, pp. 552-561, (2008)
  • [4] Bletsas A., Shin H., Win M.Z., Cooperative communications with outage-optimal opportunistic Relaying, IEEE Transactions on Wireless Communications, 6, 9, pp. 3450-3460, (2007)
  • [5] Ribeiro A., Wang R.Q., Giannakis G.B., Multi-source cooperation with full-diversity spectral-efficiency and controllable-complexity, IEEE Journal on Selected Areas in Communications, 25, 2, pp. 415-425, (2007)
  • [6] Wang T.-R., Giannakis G.B., Complex field network coding for multiuser cooperative communications, IEEE Journal on Selected Areas in Communications, 26, 3, pp. 561-571, (2008)
  • [7] Beres E., Adve R., Selection cooperation in multi-source cooperative networks, IEEE Transactions on Wireless Communications, 7, 1, pp. 118-127, (2008)
  • [8] Si J.-B., Li Z., Dang L.-J., Liu Z.-J., Joint optimization of relay selection and power allocation in cooperative wireless networks, International Conference on Communication Systems, pp. 1264-1268, (2008)
  • [9] Dossey J.A., Otto A.D., Spence L.E., Eynden C.V., Discrete Mathematics, pp. 352-360, (2000)
1