Low complexity power allocation for hybrid amplify-and-forward opportunistic relay ordering cooperation

doi:10.1016/S1005-8885(13)60044-8

中国邮电高校学报(英文) ›› 2013, Vol. 20 ›› Issue (3): 26-31.doi: 10.1016/S1005-8885(13)60044-8

Low complexity power allocation for hybrid amplify-and-forward opportunistic relay ordering cooperation

成聿伦¹,杨龙祥²

Jiangsu Key Laboratory of Wireless Communications, Key Laboratory on Wideband Wireless Communications and Sensor Network Technology of Ministry of Education, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

收稿日期:2012-11-03 修回日期:2013-01-16 出版日期:2013-06-30 发布日期:2013-06-26
通讯作者: 成聿伦 E-mail:chengyuluen@163.com
基金资助:
This work was supported by the National Basic Research Program of China (2013CB329104), the National Natural Science Foundations of China (61071090, 61171093), the Postgraduate Innovation Programs of Jiangsu Scientific Research (CXZZ11_0388), the Natural Science Foundation Key Projects of Jiangsu (11KJA510001), the National Major Projects of Science and Technology (2011ZX03005-004-003) and Jiangsu 973 Projects (BK2011027).

Low complexity power allocation for hybrid amplify-and-forward opportunistic relay ordering cooperation

Jiangsu Key Laboratory of Wireless Communications, Key Laboratory on Wideband Wireless Communications and Sensor Network Technology of Ministry of Education, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

Received:2012-11-03 Revised:2013-01-16 Online:2013-06-30 Published:2013-06-26
Supported by:
This work was supported by the National Basic Research Program of China (2013CB329104), the National Natural Science Foundations of China (61071090, 61171093), the Postgraduate Innovation Programs of Jiangsu Scientific Research (CXZZ11_0388), the Natural Science Foundation Key Projects of Jiangsu (11KJA510001), the National Major Projects of Science and Technology (2011ZX03005-004-003) and Jiangsu 973 Projects (BK2011027).

摘要/Abstract

摘要：

In this paper, to enhance the robustness against link imbalance, a hybrid cooperative protocol is proposed for amplify-and-forward (AF) opportunistic cooperation, where opportunistic relaying and multi-hop cooperation with relay ordering (RO) are dynamically selected to maximize the end to end signal-noise ratio (SNR), and the power allocation coefficient is optimized under total power constraint accordingly. Furthermore, a suboptimum allocation scheme with low complexity is proposed by employing the upper bound of harmonic mean. Simulation results show that the proposed scheme outperforms conventional AF opportunistic cooperation in variety of line type topology. Moreover, the efficiency of the proposed suboptimum allocation is also validated in large SNR region.

关键词:

opportunistic cooperation, multi-hop, RO, AF, power allocation

Abstract:

Key words:

opportunistic cooperation, multi-hop, RO, AF, power allocation

中图分类号:

TN 911

CHENG Yu-lun, YANG Long-xiang. Low complexity power allocation for hybrid amplify-and-forward opportunistic relay ordering cooperation[J]. Acta Metallurgica Sinica(English letters), 2013, 20(3): 26-31.

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Low complexity power allocation for hybrid amplify-and-forward opportunistic relay ordering cooperation

Low complexity power allocation for hybrid amplify-and-forward opportunistic relay ordering cooperation

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