跨层协作的两级垂直切换判决  

Cross-layer collaboration based on hierarchical handover decision

作　　者：徐名海[1,2] 王宇[1,2] 

机构地区：[1]南京邮电大学通信与信息工程学院,南京210003 [2]南京邮电大学宽带无线通信与传感网技术教育部重点实验室,南京210003

出　　处：《计算机应用研究》2012年第7期2579-2583,2599,共6页Application Research of Computers

基　　金：国家自然科学基金资助项目(60902015);国家科技重大专项基金资助项目(2011ZX03005-004-03)

摘　　要：在建构网络质量QoN概念的基础上,将跨层协作和两级判决相结合,提出一种新型的垂直切换模型,并给出了详细流程。仿真表明,该算法相对于传统算法而言,在切换时延和服务终端时延等指标上均有显著改善,从而证明了两级判决能优化切换流程,确保业务连续性。This paper proposed a novel vertical handover model based on cross-layer collaboration and hierarchical decision,along with detailed vertical handover flow descriptions.Furthermore,it introduced a new concept of QoN,which described the quality of network.Simulation shows that the proposed solution is superior to existing algorithms from the perspective of handover latency and session interruption delay.By virtue of handover flow optimization with hierarchical decision,it assures the session continuity.

关 键 词：异构网络 垂直切换 业务连续性 网络质量 两级判决 

分 类 号：TN915.07[电子电信—通信与信息系统]