通信学报2018，Vol.39Issue(5)：34-47,14.DOI:10.11959/j.issn.1000-436x.2018075
异构网络中基于负载传递的联合接纳控制算法
Joint admission control algorithm based on load transfer in heterogeneous networks
摘要
Abstract
A load-transfer-based joint admission control (LJAC) algorithm in heterogeneous networks was proposed. The access requirements of users were admitted based on load balancing, the dynamic load transfer of traffics in the overlap-ping coverage areas of heterogeneous networks were introduced, and the influence of such factors as the layout of heter-ogeneous networks and the vertical handoff was considered in the algorithm. The integrated system of heterogeneous networks was modeled as a multidimensional Markov chain, the steady-state probabilities were obtained and the quality of service (QoS) performance metrics were derived. Based on the Poisson point process theory, the upper bound of ca-pacity of the heterogeneous networks satisfying QoS limitations was obtained. The admission control parameters of the integrated system of heterogeneous networks were optimized in order to maximize the resource utilization rate as well as guaranteeing the QoS of users. The simulation results demonstrate lower traffic blocking probability, lower failure proba-bility of vertical handoff requirements, and larger system capacity gain can be achieved by using the proposed LJAC al-gorithm.关键词
异构网络/负载传递/接纳控制/服务质量/泊松点过程Key words
heterogeneous network/load transfer/admission control/quality of service/Poisson point process分类
信息技术与安全科学引用本文复制引用
夏玮玮,丁兆明,沈连丰..异构网络中基于负载传递的联合接纳控制算法[J].通信学报,2018,39(5):34-47,14.基金项目
国家自然科学基金资助项目(No.61741102,No.61471164)The National Natural Science Foundation of China(No.61741102,No.61471164) （No.61741102,No.61471164）
