基于分解的多目标进化算法的异构无线网络业务接入控制

毕晓君; 张倩

doi:10.11999/JEIT170616

基于分解的多目标进化算法的异构无线网络业务接入控制

doi: 10.11999/JEIT170616

毕晓君¹,
张倩¹

基金项目:

国家自然科学基金(61175126)

计量
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- 被引次数: 0
出版历程
- 收稿日期: 2017-06-28
- 修回日期: 2017-11-21
- 刊出日期: 2018-04-19

Service Access Control for Heterogeneous Wireless Networks Based on Multi-objective Evolutionary Algorithm Based on Decomposition

BI Xiaojun¹,
ZHANG Qian¹

Funds:

The National Natural Science Foundation of China (61175126)

摘要

摘要: 异构无线网络接入控制问题包含多个优化目标，现有算法考虑不全面且多是将其转换为单目标求解，限制了各目标的相对关系，无法适应不同的实际需求。该文提出一种直接采用多目标进化算法的接入控制算法。首先将优化目标扩展为3个，分别是最小化阻塞率、最小化占用总资源和负载均衡；其次引入基于分解的多目标进化算法(MOEA/D)并设计进化策略，进行初步寻优；最后通过非支配排序得到Pareto最优解集，即最佳接入方案。仿真结果表明，所提算法可以提高各优化目标的求解精度，从而提高业务接入成功率和网络资源利用率，并且为决策者提供多种接入方案，可根据实际需求进行最优选择。
- 异构无线网络 /
- 接入控制 /
- 多目标优化 /
- 分解 /
- 非支配排序
Abstract: Access control of heterogeneous wireless networks contains many optimization objectives. The optimization objectives of existing algorithms are incompletem and most of them are converted to single objective which restricts the relative relation of each target and can not meet the different demands. Therefore,an access control algorithm is proposed, which uses the multi-objective evolutionary algorithm directly. First, the optimization objective is extended to three, which are the minimization of blocking rate, the minimization of occupancy resources and load balancing. Secondly, the Multi-Objective Evolutionary Algorithm based on Decomposition (MOEA/D) is introduced and evolutionary strategy is designed to perform preliminary optimization. Finally, the Pareto optimal solution set is obtained by non-dominated sorting, that is, the best access control scheme. The simulation results show that the proposed algorithm improves the accuracy of each optimization objective, and thus improves the success rate of access and the utilization ratio of network resources. It can also provide a variety of optimal access control schemes for decision makers, which can be optimally chosen according to actual requirements.
- Heterogeneous wireless network /
- Access control /
- Multi-objective optimization /
- Decomposition /
- Non- dominated sorting

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参考文献(22)

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