基于中继节点辅助的Femtocell混合接入控制算法

doi:10.11959/j.issn.1000-436x.2017007

通信学报 ›› 2017, Vol. 38 ›› Issue (1): 54-65.doi: 10.11959/j.issn.1000-436x.2017007

基于中继节点辅助的Femtocell混合接入控制算法

刘诚毅¹,陈赓²,邢松³,沈连丰¹

¹ 东南大学移动通信国家重点实验室，江苏南京 210096
² 山东科技大学电子通信与物理学院，山东青岛 266590
³ 美国加利福尼亚州立大学洛杉矶分校信息系统实验室，美国洛杉矶 90001

修回日期:2016-11-02 出版日期:2017-01-01 发布日期:2017-01-23
作者简介:刘诚毅（1986-），男，江苏丰县人，东南大学博士生，主要研究方向为异构网络资源管理算法研究等。|陈赓（1984-），男，山东潍坊人，博士，山东科技大学讲师，主要研究方向为异构融合网络无线资源管理与优化算法、高动态异构无线资源高效利用与优化方法等。|邢松（1964-），男，江苏扬州人，博士，美国加利福尼亚州立大学教授，主要研究方向为数字网络通信系统及语音和图像处理等。|沈连丰（1952-），男，江苏邳州人，东南大学教授、博士生导师，主要研究方向为宽带移动通信、短距离无线通信与泛在网络等。
基金资助:
国家自然科学基金资助项目(61471164);国家自然科学基金资助项目(61401399);中央高校基本科研业务费专项资金资助和江苏省普通高校研究生科研创新计划基金资助项目(KYLX_0133);山东科技大学人才引进科研启动基金资助项目(2016RCJJ010)

Hybrid access control algorithm based on relay node assistant in Femtocell network

Cheng-yi LIU¹,Geng CHEN²,Song XING³,Lian-feng SHEN¹

¹ National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China
² College of Electronic,Communication and Physics,Shandong University of Science and Technology,Qingdao 266590,China
³ Department of Information Systems,California State University,Los Angeles 90001,USA

Revised:2016-11-02 Online:2017-01-01 Published:2017-01-23
Supported by:
The National Natural Science Foundation of China(61471164);The National Natural Science Foundation of China(61401399);The Fundamental Research Funds for the Central Universities and the Program Sponsored for Scientific Innovation Research of College Graduate in Jiangsu Province(KYLX_0133);The Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents(2016RCJJ010)

摘要/Abstract

摘要：

针对异构网络融合环境提出一种基于中继节点辅助的毫微微蜂窝（Femtocell）混合接入控制算法，为Femtocell网络相邻用户（NUE，neighboring user）提供较好的性能支持。该算法将中继节点部署在网络外围的架构，通过中继放大转发或直传链路的传播方式对 NUE 进行数据传输，并设置 Femtocell 网络注册用户（FUE， Femtocell user）的QoS门限值、宏蜂窝用户（MUE，Macrocell user）的跨层同频干扰容忍门限值以及Femtocell基站（FBS，Femtocell base station）下行总功率受限为约束，将上述资源分配问题建模成最优化问题，通过采用对偶分解算法进行求解，并将直传与中继放大转发模式相结合，从而适用于多用户多基站环境下 Femtocell 混合接入。仿真结果显示，所提算法不仅能够对FUE的QoS进行保护，还能有效降低对MUE的跨层同频干扰，而且动态、灵活地改变NUE的接入模式，较大幅度地提高NUE的系统性能，且在一定区域内采用中继转发链路获得的数据传输速率要比采用传统直传链路的数据速率高约25%左右。

关键词: 中继, 混合接入控制, 异构网络融合, 跨层干扰, 注册用户保护

Abstract:

A Femtocell hybrid access control algorithm assisted with relay note was proposed to supply higher performance for the Femtocell neighboring users (NUE) in heterogeneous network.Deploying relay outside the Femtocell networks was used and amplify-and-forward (AF) relaying protocol or direct link protocol was alternated to use for the data transmission of Femtocell NUE.An optimization problem was formulated with the constraints of the required transmission rates thresholds of Femtocell registered users (FUE),the thresholds of the cross-tier interferences to the macrocell users (MUE),and total transmit powers of the Femtocell base station (FBS).By using the dual decomposition method,a Femtocell hybrid access control algorithm was given based on the combination of the direct mode and relay mode.Simulation results have shown that the scheme can not only protect the QoS required by the FUE,but also decrease the cross-tier interferences suffered by the MUE.It also illustrates the better performance of the NUE through the dynamic and flexible access mechanism.Furthermore,based on the last simulation the relay link would help the NUE obtain about 25% more performance than the traditional direct link in some regions.

Key words: relay, hybrid access control, heterogeneous network, cross-tier interferences, registered user protection

中图分类号:

TN915

刘诚毅,陈赓,邢松,沈连丰. 基于中继节点辅助的Femtocell混合接入控制算法[J]. 通信学报, 2017, 38(1): 54-65.

Cheng-yi LIU,Geng CHEN,Song XING,Lian-feng SHEN. Hybrid access control algorithm based on relay node assistant in Femtocell network[J]. Journal on Communications, 2017, 38(1): 54-65.

图/表 10

图1

图2

表1

仿真参数"

参数	取值
宏蜂窝基站位置	(0,500)
毫微微蜂窝基站功率	30 dBm
热噪声	?120 dBm
子载波宽度	0.125 MHz
$\frac{α}{β}$	$\frac{2}{3}$
穿墙因子	0.8

表1

图3

图4

图5

图6

图7

图8

图9

参考文献 17

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基于中继节点辅助的Femtocell混合接入控制算法

Hybrid access control algorithm based on relay node assistant in Femtocell network

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