A mobility-based load control scheme in Hierarchical Mobile IPv6 networks

作     者：Pack, Sangheon Kwon, Taekyoung Choi, Yanghee 

作者机构：Korea Univ Sch Elect Engn Seoul South Korea Seoul Natl Univ Sch Engn & Comp Sci Seoul South Korea 

出 版 物：《WIRELESS NETWORKS》 (无线网络)

年 卷 期：2010年第16卷第2期

页      面：545-558页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Korean Government [KRF-2008-314-D00354] 

主　　题：Hierarchical Mobile IPv6 Mobility-based load control Mobility anchor point Admission control algorithm Session-to-mobility ratio 

摘      要：By introducing a mobility anchor point (MAP), Hierarchical Mobile IPv6 (HMIPv6) reduces the signaling overhead and handoff latency associated with Mobile IPv6. In this paper, we propose a mobility-based load control (MLC) scheme, which mitigates the burden of the MAP in fully distributed and adaptive manners. The MLC scheme combines two algorithms: a threshold-based admission control algorithm and a session-to-mobility ratio (SMR)-based replacement algorithm. The threshold-based admission control algorithm gives higher priority to ongoing mobile nodes (MNs) than new MNs, by blocking new MNs when the number of MNs being serviced by the MAP is greater than a predetermined threshold. On the other hand, the SMR-based replacement algorithm achieves efficient MAP load distribution by considering MNs traffic and mobility patterns. We analyze the MLC scheme using the continuous time Markov chain in terms of the new MN blocking probability, ongoing MN dropping probability, and binding update cost. Also, the MAP processing latency is evaluated based on the M/G/1 queueing model. Analytical and simulation results demonstrate that the MLC scheme outperforms other schemes and thus it is a viable solution for scalable HMIPv6 networks.