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Cooperative Layer-2 Based Routing Approach for Hybrid Wireless Mesh Networks
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作者 Alicia Trivino Alfonso Ariza +1 位作者 Eduardo Casilari Juan C.Cano 《China Communications》 SCIE CSCD 2013年第8期88-99,共12页
In a Wireless Mesh Network(WMN),the convenience of a routing strategy strongly depends on the mobility of the intermediate nodes that compose the paths.Taking this behaviour into account,this paper presents a routing ... In a Wireless Mesh Network(WMN),the convenience of a routing strategy strongly depends on the mobility of the intermediate nodes that compose the paths.Taking this behaviour into account,this paper presents a routing scheme that works differently accordingly to the node mobility.In this sense,a proactive routing scheme is restricted to the backbone to promote the use of stable routes.Conversely,the reactive protocol is used for searching routes to or from a mobile destination.Both approaches are simultaneously implemented in the mesh nodes so that the routing protocols share routing information that optimises the network performance.Aimed at guaranteeing the IP compatibility,the combination of the two protocols in the core routers is carried out in the Medium Access Control(MAC)layer.In contrast to the operation in the IP layer where two routing protocols cannot work concurrently,the transfer of the routing tasks to the MAC layer enables the use of multiple independent forwarding tables.Simulation results show the advantage of the proposal in terms of packet losses and data delay. 展开更多
关键词 hybrid mesh networks mobile ad hoc network hybrid routing protocols Layer-2 routing Layer-2 forwarding
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Registration Cost Performance Analysis of a Hierarchical Mobile Internet Protocol Network
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作者 XUKai JIHong YUEGuang-xin 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2004年第2期55-59,共5页
On the basis of introducing principles for hierarchical mobile Internet protocol networks, the registration cost performance in this network model is analyzed in detail. Furthermore, the functional relationship is als... On the basis of introducing principles for hierarchical mobile Internet protocol networks, the registration cost performance in this network model is analyzed in detail. Furthermore, the functional relationship is also established in the paper among registration cost, hierarchical level number and the maximum handover time for gateway foreign agent regional registration. At last, the registration cost of the hierarchical mobile Internet protocol network is compared with that of the traditional mobile Internet protocol. Theoretic analysis and computer simulation results show that the hierarchical level number and the maximum handover times can both affect the registration cost importantly, when suitable values of which are chosen, the hierarchical network can significantly improve the registration performance compared with the traditional mobile IP. 展开更多
关键词 hierarchical mobile Internet protocol registration cost home agent gateway foreign agent
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Design and Analysis of an Adaptive Handover Protocol for 4G Networks
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作者 BHASKAR Subbe Gowda SATISH KUMAR Gandluru Arthur Edwin RAMANA REDDY Patil 《Journal of Shanghai Jiaotong university(Science)》 EI 2015年第2期209-217,共9页
The future generation networks or 4G networks constitute of varied technologies converged over the Internet protocol version 6(IPv6) core. The 4G networks offer varied services over different interfaces to the user no... The future generation networks or 4G networks constitute of varied technologies converged over the Internet protocol version 6(IPv6) core. The 4G networks offer varied services over different interfaces to the user nodes. Mobility management in 4G networks is an issue that exists. The handover protocols for mobility management in 4G networks that currently exist, do not consider wireless signal degradation during handover operations. This paper introduces the Noise Resilient Reduced Registration Time Care of Mobile IP(NR RRTC:MIP) protocol for handover management. A handover decision algorithm based on the signal strength measured by the user nodes is considered in the NR RRTC: MIP protocol. A simulation study is discussed in the paper to evaluate the performance of the NR RRTC: MIP protocol. The results obtained from the simulation study prove that the NR RRTC: MIP protocol effectively reduces handover latencies and improves network performance. 展开更多
关键词 mobile internet protocol internet protocol version 6(IPv6) handover latency mobility management received signal strength MOBILE
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A New Enhanced Fast Handover Algorithm in Hierarchical Mobile IPv6 Network
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作者 XU Kai JI Hong YUE Guang-xin 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2004年第z1期18-25,共8页
Hierarchical Mobile IPv6 (HMIPv6) can reduce the delay and the amount of signaling during handover compared with the basic mobile IPv6. However, the protocol still cannot meet the requirement for traffic that is delay... Hierarchical Mobile IPv6 (HMIPv6) can reduce the delay and the amount of signaling during handover compared with the basic mobile IPv6. However, the protocol still cannot meet the requirement for traffic that is delay sensitive, such as voice, especially in macro mobility handover. Duplicate address detection and the transmission time for the handover operation could cause high handover delay. This paper proposes a new mechanism to improve the fast handover algorithm's efficiency in HMIPv6 network. And we present and analyze the performance testing for our proposal by comparing it with the traditional HMIPv6 fast handover algorithm. The results of simulation show that our scheme can reduce the handover delay much more than the traditional fast handover method for HMIPv6 network. 展开更多
关键词 hierarchical mobile Internet protocol fast handover triangle routing access point
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Performance analysis of proxy mobile IPv6 based on IEEE802.16e
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作者 Liyuan XIAO Jiawei YANG 《Frontiers of Electrical and Electronic Engineering in China》 CSCD 2010年第4期475-481,共7页
Proxy mobile Internet protocol version 6(PMIPv6)is a network-based mobility management protocol proposed by Internet Engineering Task Force(IETF),which allows nodes to remain service connectivity while moving around i... Proxy mobile Internet protocol version 6(PMIPv6)is a network-based mobility management protocol proposed by Internet Engineering Task Force(IETF),which allows nodes to remain service connectivity while moving around in the IPv6 Internet.PMIPv6 is different from the host-based mobility management protocols(mobile Internet protocol version(MIPv6),hierarchical mobile IPv6(HMIPv6),fast handover for mobile IPv6(FMIPv6),and fast handover in hierarchical mobile IPv6(F-HMIPv6)),whose signaling are transferred among some network entities except mobile node(MN).This paper focuses on the analytical modeling of performance analysis for PMIPv6 and other protocols using IEEE802.16-based wireless metropolitan area networks as the wireless access network.The performances of these protocols are evaluated by some metrics like handover latency,service disruption time,and binding update cost.Numerical results show that PMIPv6 has better performance. 展开更多
关键词 PMIPV6 mobility management protocols IEEE802.16E analytical modeling performance analysis
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Design and Implementation of Spatial Data Watermarking Service System
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作者 WU Baiyan WANG Wei +2 位作者 PENG Zhiyong DU Daosheng WANG Chuanjian 《Geo-Spatial Information Science》 2010年第1期40-48,共9页
Nowadays, more and more digitalized spatial data are sold and transmitted on the Internet. Thus, there arises an important issue about copyright protection of the digital data. To solve this problem, this paper has de... Nowadays, more and more digitalized spatial data are sold and transmitted on the Internet. Thus, there arises an important issue about copyright protection of the digital data. To solve this problem, this paper has designed and implemented a spatial data watermarking service (SDWS) system which can provide a secure framework for data transaction and transfer via the Internet and protect the rights of both copyright owners and consumers at the same time. 展开更多
关键词 spatial data transaction digital watermarking watermarking protocol mobile agent digital signature
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