异构无线网络中边缘用户小区选择算法

doi:10.11959/j.issn.1000-0801.2015340

电信科学 ›› 2015, Vol. 31 ›› Issue (12): 52-57.doi: 10.11959/j.issn.1000-0801.2015340

异构无线网络中边缘用户小区选择算法

赵振东,牛伟娇,韩东升,丁莎莎

华北电力大学电气与电子工程学院保定071003

出版日期:2015-12-20 发布日期:2017-03-27
基金资助:
国家自然科学基金资助项目;河北省自然科学基金资助项目;中央高校基本科研业务费专项资金资助项目

Cell Selection Algorithm for Edge Users in Heterogeneous Wireless Network

Zhendong Zhao,Weijiao Niu,Dongsheng Han,Shasha Ding

School of Electrical and Electronic Engineering, North China Electric Power University, Baoding 071003, China

Online:2015-12-20 Published:2017-03-27
Supported by:
The National Natural Science Foundation of China;The Natural Science Foundation of Hebei Province;Fundamental Research Funds for the Central Universities

摘要/Abstract

摘要：

在异构网络中，部署多种小功率基站，会出现大量的“小区边缘区域”，边缘用户的性能会受到影响。为此，提出了一种边缘用户小区选择算法，通过发送端进行预编码抑制干扰，提高用户接收到的信干噪比。根据小区当前用户数，动态地调整给微小区边缘用户参考接收信号添加的偏置值，避免边缘用户接入用户数过多的拥堵小区。仿真结果表明，该算法与参考算法相比，能够有效降低宏小区负载，平衡不同微小区间负载，提高轻载微小区的网络吞吐量和资源利用率。

关键词: 异构网络, 小区选择, 负载均衡, 吞吐量

Abstract:

A large number of “cell-edge area”can arise when deploying a variety of low-power base stations in heterogeneous networks, this can affect the property of edge users. So a cell selection algorithm for edge user was proposed, by using the transmitting end to precoding to suppress interference and improve user received signal-to-interference-plus-noise-ratio（SINR）. According to the current number of user in the cell, dynamically adjust the reference received signal added bias to the picocell edge users, to avoid edge users accessing heavy loaded cells. The simulation results show that, compared with the reference algorithms, the proposed algorithm can effectively reduce the load of macrocells, balance the load between different picocells and improve the throughput and resource utilization of the light load picocells.

Key words: heterogeneous network, cell selection, load balancing, throughput

赵振东,牛伟娇,韩东升,丁莎莎. 异构无线网络中边缘用户小区选择算法[J]. 电信科学, 2015, 31(12): 52-57.

Zhendong Zhao,Weijiao Niu,Dongsheng Han,Shasha Ding. Cell Selection Algorithm for Edge Users in Heterogeneous Wireless Network[J]. Telecommunications Science, 2015, 31(12): 52-57.

图/表 6

参考文献 16

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异构无线网络中边缘用户小区选择算法

Cell Selection Algorithm for Edge Users in Heterogeneous Wireless Network

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