LTE中一种基于负载均衡的自优化切换算法

刘俊; 张博; 谭盛彪; 李云

doi:10.3969/j.issn.0372-2112.2013.11.005

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LTE中一种基于负载均衡的自优化切换算法

学术论文 | 更新时间：2025-07-16

- LTE中一种基于负载均衡的自优化切换算法
- A Self-Optimization Handover Algorithm Based on Load Balancing for LTE Networks
- 电子学报 2013年41卷第11期页码：2144-2148
- 作者机构：
  
  1. 重庆邮电大学数理学院,重庆,400065
  2. 重庆邮电大学无线网络技术研究所,重庆,400065
  3. 重庆邮电大学数理学院,重庆,400065
  4. 重庆邮电大学无线网络技术研究所,重庆,400065
- 作者简介：
- 基金信息：
  
  国家自然科学基金 (No.61071118，No.60702055）;重庆市自然科学基金 (No.cstcjjA40039，No.cstc2010BB4405）
- DOI：10.3969/j.issn.0372-2112.2013.11.005
  中图分类号： TN911.22
- 纸质出版：2013
- 稿件说明：
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刘俊, 张博, 谭盛彪, 等. LTE中一种基于负载均衡的自优化切换算法[J]. 电子学报, 2013,41(11):2144-2148.

LIU Jun, ZHANG Bo, TAN Sheng-biao, et al. A Self-Optimization Handover Algorithm Based on Load Balancing for LTE Networks[J]. Acta Electronica Sinica, 2013, 41(11): 2144-2148.
刘俊, 张博, 谭盛彪, 等. LTE中一种基于负载均衡的自优化切换算法[J]. 电子学报, 2013,41(11):2144-2148. DOI： 10.3969/j.issn.0372-2112.2013.11.005.

LIU Jun, ZHANG Bo, TAN Sheng-biao, et al. A Self-Optimization Handover Algorithm Based on Load Balancing for LTE Networks[J]. Acta Electronica Sinica, 2013, 41(11): 2144-2148. DOI： 10.3969/j.issn.0372-2112.2013.11.005.

摘要

在3GPP LTE自组织网络（SON）中，面向整体切换性能的自优化算法明显优于面向个别性能的算法.本文针对EWPHPO算法无法对小区负载进行动态调整，也无法对单个过载小区的切换参数进行及时调整，从而导致掉话率等指标不能得到有效控制的问题，提出了兼顾整体切换性能和负载均衡的WPLBHO算法.通过仿真并与EWPHPO算法在相同环境下的仿真结果进行比较，我们的算法在保持切换失败率基本不变的情况下，使掉话率降低约20%、乒乓效应降低约5%，从而使系统整体切换性能（HP）提升约25%；同时，使系统平均过载时间下降近50%.因此我们的算法使系统整体性能得到了明显改善.

Abstract

In the self-organizing network (SON) of 3GPP LTE

the algorithms dynamically adjusting many parameters together are better than those adjusting only one parameter.EWPHPO algorithm can not dynamically adjust the handover parameters and the load of the individual cell timely

which causes the dropping probability not to be controlled effectively.In this paper

the WPLBHO algorithm was suggested to improve the EWPHPO algorithm in order to solve these problems.The numerical results were given and compared with those from the EWPHPO algorithm under the same simulation conditions.It is shown that the dropping probability and the ping-pang ratio decrease about 20% and 5%

respectively

but the handoff failure rate hardly vary.Then the total performance of the system increases about 25%.On the other hand

the average load time decreases about 50%.These show that the total performance of the system is evidently improved through our algorithm.

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