摘要
在分层移动IPv6(Hierarchical Mobile IPv6,HMIPv6)网络的平均切换开销和平均切换延迟模型的基础上,分析了移动锚点对平均切换开销和平均切换延迟的影响。数值结果表明对于部分节点而言,移动锚点选择时很难使开销和延迟同时达到最小,且单一性能改进可能造成另一性能的大大下降。为解决该问题,提出最小权重移动锚点选择算法,可根据用户的实时性需求动态调整移动锚点选择算法,进而调整开销和延迟。实验证明算法具有更好的灵活性,能够满足用户的多种实时性需求。
Based on the models of average handover cost （AHC） and average handover delay （AHD） in HMIPv6 networks, the impact of mobile anchor points on AHC and AHD is analysed. Numerical results present that, for some of the nodes, it is almost not possible to select an MAP achieving the lowest AHC and AHD both. Even more, to meliorate just one performance might cause the other one getting much worse. To solve this problem, a lowest-weight MAP selection algorithm is proposed in this paper, which can dynamically adjust MAP selection algorithm according to users’ real-time need and then to adjust the cost and delay. Experiments prove that our scheme has better flexibility in satisfying users’ diversified real-time need.
出处
《计算机应用与软件》
CSCD
2010年第12期1-4,共4页
Computer Applications and Software
基金
国家自然科学基金项目(90604003
60603067)
关键词
分层移动IPV6
移动锚点
切换开销
切换延迟
Hierarchical mobile IPv6 （HMIPv6） Mobile anchor point （MAP） Handover cost Handover delay
