宏-飞蜂窝双层网络中基于毫微微基站分组的资源分配

doi:10.11772/j.issn.1001-9081.2017.05.1311

计算机应用 ›› 2017, Vol. 37 ›› Issue (5): 1311-1316.DOI: 10.11772/j.issn.1001-9081.2017.05.1311

宏-飞蜂窝双层网络中基于毫微微基站分组的资源分配

张海波, 彭星萤, 陈善学

重庆市移动通信重点实验室(重庆邮电大学), 重庆 400065

收稿日期:2016-11-04 修回日期:2016-12-11 出版日期:2017-05-10 发布日期:2017-05-16
通讯作者: 彭星萤
作者简介:张海波(1979-),男,重庆人,副教授,博士,主要研究方向:移动通信技术与理论、异构网中的无线资源管理;彭星萤(1989-),男,四川内江人,硕士研究生,主要研究方向:异构网中的无线资源管理;陈善学(1966-),男,安徽合肥人,教授,博士,主要研究方向:数字图像信号处理、超光谱图像压缩。
基金资助:
国家自然科学基金资助项目（61102062）；重庆市基础与前沿项目（cstc2014jcyjA40052）；重庆市教委科学技术研究项目（KJ1400405）。

Resource allocation based on femto base station in Macrocell-Femtocell networks

ZHANG Haibo, PENG Xingying, CHEN Shanxue

Chongqing Key Laboratory of Mobile Communicationgs Technology(Chongqing Univesity of Posts and Telecommunications), Chongqing 400065, China

Received:2016-11-04 Revised:2016-12-11 Online:2017-05-10 Published:2017-05-16
Supported by:
This work is partially supported by the Natural Science Foundation of China (61102062), the Basic and Frontier research Project of Chongqing (cstc2014jcyjA40052), the Scientific and Technological Research Program of Chongqing Municipal Education Commission (KJ1400405).

摘要/Abstract

摘要： 针对宏-飞蜂窝双层网络模型中宏小区（Macrocell）用户层和毫微微小区（Femtocell）用户层之间的跨层干扰和Femtocell之间的同层干扰，提出了一种基于毫微微基站分组的资源分配算法。该算法包括两个部分：一部分是宏基站先利用改进的差额法，设置虚拟的宏用户（MUE），将之变为平衡的指派问题再为宏小区用户分配信道，然后用注水算法分配功率，保证宏小区用户的正常传输。另一部分是在保证宏小区用户的服务质量基础上，采用一种增强型的蚁群优化（EACO）算法，设定信息素浓度范围后对毫微微小区进行分组，避免了原始的蚁群算法有可能陷入局部最优的现象；再利用一种启发式算法和分布式功率分配算法分别对毫微微用户（FUE）进行信道和功率分配，在满足毫微微小区用户的数据速率需求下，最大化频谱效率。仿真结果表明，EACO有效地抑制了跨层干扰和同层干扰，既能保证用户的数据速率需求，又能有效提升网络频谱效率。

关键词: 毫微微小区, 资源分配, 分组, 频谱效率, 宏小区

Abstract: Aiming at the cross-layer interference between the macrocell user layer and the femtocell user layer and the same layer interference between femtocells in the macrocell-femtocell dual-layer network model, a resource allocation algorithm based on femtocell base stations was proposed. The algorithm consists of two parts:the one is that, the Macrocell base station firstly used the improved difference method, set the virtual Macro User Equipment (MUE), and turned it into a balanced assignment problem and allocated the channel to the macrocell user, and then used water-filling algorithm for power allocation to ensure the transmission of macrocell users. The other part is that, on the basis of guaranteeing the service quality of the macrocell users, an Enhanced Ant Colony Optimization (EACO) algorithm was adopted to group the femtocells after setting the pheromone concentration range, which avoided the possibility that the original ant colony algorithm may fall into a local optimum. Then, a heuristic algorithm and a distributed power allocation algorithm were used to allocate the channel and power to the Femto User Equipment (FUE) respectively. The spectral efficiency was maximized under the data rate requirement of the femtocell users. The simulation results show that EACO effectively suppresses cross-layer interference and same-level interference, which can guarantee the data rate requirement of users and improve the efficiency of network spectrum effectively.

Key words: femtocell, resource allocation, cluster, spectrum efficiency, macrocell

中图分类号:

TN929.5

张海波, 彭星萤, 陈善学. 宏-飞蜂窝双层网络中基于毫微微基站分组的资源分配[J]. 计算机应用, 2017, 37(5): 1311-1316.

ZHANG Haibo, PENG Xingying, CHEN Shanxue. Resource allocation based on femto base station in Macrocell-Femtocell networks[J]. Journal of Computer Applications, 2017, 37(5): 1311-1316.

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宏-飞蜂窝双层网络中基于毫微微基站分组的资源分配

Resource allocation based on femto base station in Macrocell-Femtocell networks

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