家庭基站系统中的联合信道与功率控制算法

doi:10.3969/j.issn.1000-436x.2014.04.016

通信学报 ›› 2014, Vol. 35 ›› Issue (4): 141-147.doi: 10.3969/j.issn.1000-436x.2014.04.016

家庭基站系统中的联合信道与功率控制算法

穆施瑶¹,朱琦²

¹ 南京邮电大学教育部宽带无线通信与传感网技术重点实验室，江苏南京 210003
² 南京邮电大学江苏省无线通信重点实验室，江苏南京 210003

出版日期:2014-04-25 发布日期:2017-07-03
基金资助:
：国家重点基础研究发展计划（“973计划）基金资助项目;国家自然科学基金资助项目;国家科技重大专项基金资助项目;国家科技重大专项基金资助项目;江苏省自然科学重点研究专项基金资助项目

Joint channel allocation and power control in femtocell system

Shi-yao MU¹,Qi ZHU²

¹ Key Lab on Wideband Wireless Communications and Sensor Network Technology of Ministry of Educations, Nanjing University of Posts and Telecommunications, Nanjing 210003,China
² Jiangsu Key Lab of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing 210003,China

Online:2014-04-25 Published:2017-07-03
Supported by:
The National Basic Research Progran of China(973 Program);The National Natural Science Foundation of China;The National High Technology Research and Development Program of China(863 Program);The National High Technology Research and Development Program of China(863 Program);The Natural Science Foundation of Jiangsu Province Key Research Projects

摘要/Abstract

摘要：

提出了一种联合信道分配与功率控制算法，通过优化目标将家庭网络的信道分配和功率控制结合，限定干扰范围，采用凸优化和次梯度方法，求解出功率的闭合式，优化了家庭网络的容量。算法又将家庭网络容量与宏网络容量联系，使宏网络容量得到了提升。仿真结果表明，与单纯的功率控制算法相比，所提算法提高了系统容量。

关键词: 双层网络, 家庭基站, 信道分配, 功率控制, 凸优化

Abstract:

A joint channel allocation and power control algorithm was proposed, which used convex optimization method to combine channel allocation and power control and limit the range of interference, subgradient method was used to solve the close formula of power and optimize the capacity of fem network. In addition, the algorithm had connected the optimal of fem network and macro network together, thus macro network's throughput could be maximized. Simulation results prove that system throughput has been greatly improved.

Key words: two-tier network, femtocell, channel allocation, power control, convex optimization

穆施瑶,朱琦. 家庭基站系统中的联合信道与功率控制算法[J]. 通信学报, 2014, 35(4): 141-147.

Shi-yao MU,Qi ZHU. Joint channel allocation and power control in femtocell system[J]. Journal on Communications, 2014, 35(4): 141-147.

图/表 7

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参考文献 14

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变量	数值
宏小区的个数	1
宏小区的半径/m	100
家庭小区的半径/m	10
家庭用户的最大发射功率/W	0.2
宏用户的发射功率/W	0.5
系统带宽/MHz	10
信道衰落公式（宏基站与宏用户家庭基站与本家庭用户）/dB	30+40× lg(d) （d表示两点间的距离）
信道衰落公式（家庭基站与邻家庭用户）/dB	30+40× lg(d)+16 （d表示两点间的距离）
信道衰落公式（宏基站与家庭用户）/dB	30+40× lg(d)+8 （d表示两点间的距离）

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家庭基站系统中的联合信道与功率控制算法

Joint channel allocation and power control in femtocell system

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