收稿日期: 2013-05-06
修回日期: 2013-07-30
网络出版日期: 2013-10-11
基金资助
国家 “863” 计划项目(2012AA050801)
Strategy of Avoiding Conflict Between MRO and MLB in LTE Self- Optimizing Networks
Received date: 2013-05-06
Revised date: 2013-07-30
Online published: 2013-10-11
Supported by
国家 “863” 计划项目(2012AA050801)
黄妙娜 冯穗力 陈军 张永忠 . LTE自优化网络中MRO与MLB间冲突避免策略[J]. 华南理工大学学报(自然科学版), 2013 , 41(11) : 36 -42 . DOI: 10.3969/j.issn.1000-565X.2013.11.006
Proposed in this paper is an optimization theory- based strategy of avoiding the conflict between MRO(Mobility Robustness Optimization) and MLB (Mobility Load Balancing).This strategy takes into considerationthe variation of users' received signal reference power in the period of T,so that the handover range for different userscan be dynamically adjusted.Moreover,based on the optimization theory,optimization objectives are designed forthe modeled MLB problem,and the allowed range of handover parameter O is set as the constraint to obtain theoptimal value of the handover parameter.Simulation results indicate that the proposed strategy not only avoids theconflict between MRO and MLB but also balances the cell load effectively,and that it helps to decrease the callblocking ratio and radio link failure as well as increase the network throughput.
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