A mobile ad hoc network (MANET) is a wireless network without any fixed infrastructure. All nodes must communicate with each other by a predefined routing protocol. Most of routing protocols don’t consider binding in...A mobile ad hoc network (MANET) is a wireless network without any fixed infrastructure. All nodes must communicate with each other by a predefined routing protocol. Most of routing protocols don’t consider binding internet addresses to mobile nodes. However, in network mobility (NEMO), all mobile nodes can’t only communicate with Internet using Bi-directional tunneling but also can be allocated an Internet address. In this paper, we propose two algorithms with the nested NEMO topology to reconstruct the Internet-based MANET. Additionally, a novel load balancing solution is proposed. The Mobile Router (MR) which acts as a central point of internet attachment for the nodes, and it is likely to be a potential bottleneck because of its limited wireless link capacity. We proposed a load-information in the route advertisement (RA) message. The simulation results show that the proposed solution has significantly improved the connection throughput.展开更多
In the NEtwork MObility （NEMO） environment, mobile networks can form a nested structure. In nested mobile networks that use the NEMO Basic Support （NBS） protocol, pinball routing problems occur because packets are...In the NEtwork MObility （NEMO） environment, mobile networks can form a nested structure. In nested mobile networks that use the NEMO Basic Support （NBS） protocol, pinball routing problems occur because packets are routed to all the home agents of the mobile routers using nested tunneling. In addition, the nodes in the same mobile networks can communicate with each other regardless of Internet connectivity. However, the nodes in some mobile networks that are based on NBS cannot communicate when the network is disconnected from the Internet. In this paper, we propose a route optimization scheme to solve these problems. We introduce a new IPv6 routing header named ＂destination-information header＂ （DH）, which uses DH instead of routing header type 2 to optimize the route in the nested mobile network. The proposed scheme shows at least 30% better performance than ROTIO and similar performance improvement as DBU in inter-route optimization. With respect to intra-route optimization, the proposed scheme always uses the optimal routing path. In addition, the handover mechanism in ROAD＋ outperforms existing schemes and is less sensitive to network size than other existing schemes.展开更多
以支持NBS协议(NEMO basic support protocol)的移动网络为研究对象,针对移动性管理和路由优化问题,提出基于改进HMIPv6的移动网络路由优化方案.将HMIPv6与NBS整合并构建层次化网络架构,利用HMIPv6的区域化管理机制降低移动网络内的移...以支持NBS协议(NEMO basic support protocol)的移动网络为研究对象,针对移动性管理和路由优化问题,提出基于改进HMIPv6的移动网络路由优化方案.将HMIPv6与NBS整合并构建层次化网络架构,利用HMIPv6的区域化管理机制降低移动网络内的移动节点注册开销.对HMIPv6进行改进,设计全新移动网络路由优化方案,消除移动网络内部节点通信过程中所存在的冗余路由.分析结果表明,同NBS对比,本方案在额外数据包开销和移动管理开销方面具有显著优势.展开更多
基金This work is supportexl by the National Natural Science Foundation of China （No. 60372039） and the Defense Pre-Research Project of China （No. 41329080101）.
文摘A mobile ad hoc network (MANET) is a wireless network without any fixed infrastructure. All nodes must communicate with each other by a predefined routing protocol. Most of routing protocols don’t consider binding internet addresses to mobile nodes. However, in network mobility (NEMO), all mobile nodes can’t only communicate with Internet using Bi-directional tunneling but also can be allocated an Internet address. In this paper, we propose two algorithms with the nested NEMO topology to reconstruct the Internet-based MANET. Additionally, a novel load balancing solution is proposed. The Mobile Router (MR) which acts as a central point of internet attachment for the nodes, and it is likely to be a potential bottleneck because of its limited wireless link capacity. We proposed a load-information in the route advertisement (RA) message. The simulation results show that the proposed solution has significantly improved the connection throughput.
基金supported by MKE,Korea,under ITRC NIPA-2009-(C1090-0902-0046)by MEST,Korea under WCU Program supervised by the KOSEF(No.R31-2008-000-10062-0).
文摘In the NEtwork MObility （NEMO） environment, mobile networks can form a nested structure. In nested mobile networks that use the NEMO Basic Support （NBS） protocol, pinball routing problems occur because packets are routed to all the home agents of the mobile routers using nested tunneling. In addition, the nodes in the same mobile networks can communicate with each other regardless of Internet connectivity. However, the nodes in some mobile networks that are based on NBS cannot communicate when the network is disconnected from the Internet. In this paper, we propose a route optimization scheme to solve these problems. We introduce a new IPv6 routing header named ＂destination-information header＂ （DH）, which uses DH instead of routing header type 2 to optimize the route in the nested mobile network. The proposed scheme shows at least 30% better performance than ROTIO and similar performance improvement as DBU in inter-route optimization. With respect to intra-route optimization, the proposed scheme always uses the optimal routing path. In addition, the handover mechanism in ROAD＋ outperforms existing schemes and is less sensitive to network size than other existing schemes.
文摘以支持NBS协议(NEMO basic support protocol)的移动网络为研究对象,针对移动性管理和路由优化问题,提出基于改进HMIPv6的移动网络路由优化方案.将HMIPv6与NBS整合并构建层次化网络架构,利用HMIPv6的区域化管理机制降低移动网络内的移动节点注册开销.对HMIPv6进行改进,设计全新移动网络路由优化方案,消除移动网络内部节点通信过程中所存在的冗余路由.分析结果表明,同NBS对比,本方案在额外数据包开销和移动管理开销方面具有显著优势.
