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基于子载波配对的多用户协作中继系统资源分配算法
A Resource Allocation Algorithm Based on Subcarrier Pairing in Multi-User Cooperative Relay Communication
- 电信科学 2014年30卷第6期 页码：73-78
- 作者机构：
- 作者简介：
[ "陈斌，男，宁波大学硕士生，主要研究方向为多用户协作中继通信中的资源分配。" ]
[ "李有明，男，宁波大学通信技术研究所教授，主要研究方向为无线和有线宽带通信技术，包括干扰抑制、动态资源分配、MIMO-OFDM、协作中继、认识无线电等。" ]
[ "郭涛，男，宁波大学硕士生，主要研究方向为认知无线电中的资源分配。" ]
[ "雷鹏，男，宁波大学硕士生，主要研究方向为认知无线电中的频谱感知。" ]
[ "刘小青，男，宁波大学硕士生，主要研究方向为压缩感知技术及其应用。" ]
- 基金信息：国家自然科学基金资助项目;The National Natural Science Foundation of China(61071119);宁波市自然科学基金资助项目;Ningbo Natural Science Foundation(2012A610017);宁波市科技创新团队研究计划基金资助项目;Science and Technology Innovation Team Research Project of Ningbo(2011B81002);宁波大学校级研究生科研创新基金资助项目(010-D00615138000)
DOI：10.3969/j.issn.1000-0801.2014.06.011
中图分类号：-
网络出版日期：2014-06，
纸质出版日期：2014-06-20
- 稿件说明：
移动端阅览
陈斌, 李有明, 郭涛, 等. 基于子载波配对的多用户协作中继系统资源分配算法[J]. 电信科学, 2014,30(6):73-78.
Bin Chen, Youming Li, Tao Guo, et al. A Resource Allocation Algorithm Based on Subcarrier Pairing in Multi-User Cooperative Relay Communication[J]. Telecommunications science, 2014, 30(6): 73-78.
陈斌, 李有明, 郭涛, 等. 基于子载波配对的多用户协作中继系统资源分配算法[J]. 电信科学, 2014,30(6):73-78. DOI： 10.3969/j.issn.1000-0801.2014.06.011.
Bin Chen, Youming Li, Tao Guo, et al. A Resource Allocation Algorithm Based on Subcarrier Pairing in Multi-User Cooperative Relay Communication[J]. Telecommunications science, 2014, 30(6): 73-78. DOI： 10.3969/j.issn.1000-0801.2014.06.011.
摘要
针对多用户协作中继系统中的功率最小化问题，提出了一种基于联合子载波配对及分配的资源分配算法。首先根据不同用户的目标速率要求及平均信道增益进行子载波数目的分配；然后以信道条件最佳为准则，提出了一种联合子载波配对及分配的多用户迭代算法，以实现对每个用户的中继链路和直传链路分别进行子载波配对及虚拟配对；最后利用注水算法对子载波进行功率分配，从而保证各用户以最小功率进行传输。仿真结果表明，该算法在满足用户目标速率的情况下，能够进行有效的子载波配对及分配，从而最小化系统的发射功率。
Abstract
For the power minimization problem in multi-user cooperative relay communications
a resource allocation algorithm based on joint subcarrier pairing and assignment was proposed.Firstly
according to the average channel gain and the target rates of user
the assignment of subcarrier numbers was addressed.Then
in order to choose the subcarrier with best channel condition
a multi-user iterative algorithm for joint subcarrier pairing and assignment was proposed
which could achieve the subcarrier pairing in the cooperative transmissions and virtual pairing in the direct transmission
respectively.Finally
the power allocation was conducted by the water-filling algorithm
so that each user could use the minimum power for transmission.The simulation results indicate that the proposed algorithm can conduct subcarrier pairing and assignment effectively to minimize the total transmission power while meeting the users' target rate requirement.
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references
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