东南大学学报（自然科学版）2017，Vol.47Issue(5)：845-849,5.DOI:10.3969/j.issn.1001-0505.2017.05.001
超密集异构网络中基于分簇的休眠优化策略
Optimized clustering-based sleep strategy in hyperdense heterogeneous networks
摘要
Abstract
To solve the problem of the high power consumption caused by the large number of small base stations in hyperdense heterogeneous networks,an efficient sleep strategy for small base stations is proposed.In this strategy,the small base stations with large interference are grouped as a cluster.The optimization problem about the user satisfaction and the power consumption of each cluster is established.The binary particle swarm optimization algorithm is used to put some of the small base stations into a sleep mode.In terms of resource allocation,the sub-channels are allocated according to the number of the small base stations in the cluster.During the optimization of the sleep strategy,the sleep efficiency and the activation efficiency of the small base stations are improved by the independ ent sleep strategy of each cluster.The simulation results show that this sleep strategy restrains the cotier interference of the heterogeneous network and reduces the power consumption of the system.In addition,in the case of ensuring the satisfaction of the users,this strategy can reduce the outage probability of the whole system.关键词
异构网络/分簇/休眠策略/满意度/功率消耗Key words
heterogeneous networks/clustering/sleep strategy/satisfaction/power consumption分类
信息技术与安全科学引用本文复制引用
李君,王浩,王秀敏,李正权,金小萍..超密集异构网络中基于分簇的休眠优化策略[J].东南大学学报（自然科学版）,2017,47(5):845-849,5.基金项目
国家自然科学基金资助项目(61379027,61571108)、江苏省博士后基金资助项目(1302059B)、北京邮电大学网络与交换技术国家重点实验室开放课题资助项目(SKLNST-2016-2-14). （61379027,61571108）
