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Research on Mobility Management in Wireless Mesh Network

Author: WuYongDe
Tutor: CaiMing
School: Jiangnan University
Course: Computer Software and Theory
Keywords: Wireless mesh network WMN Wireless broadband network Mobility Management Roam Network protocol P2P
CLC: TN929.5
Type: Master's thesis
Year: 2008
Downloads: 164
Quote: 1
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Abstract


The wireless mesh network (Wireless Mesh Network, WMN) is a new broadband wireless network architecture evolved by mobile Ad Hoc networks, self-organizing and self-healing characteristics. As WMN flexible network, improve network coverage and increase network capacity, reduce upfront investment and other aspects are showing a great advantage, as an alternative to solve the \academia and industry attention. WMN, there are two different types of nodes: mesh routers and mesh client. Which mesh router mobility is very small, interconnected to form a wireless mesh network backbone network. mesh clients can access through multiple access protocol backbone network and access to network services through the backbone network. This allows the wireless mesh network can integrate a variety of networks, it is easy to extend. The wireless mesh network is a complex mixture of heterogeneous networks, to make good interconnect mesh client need for effective network management. Due to the characteristics of the roaming of the mobile terminal, the mobility management is an important part of a wireless network management protocol, is in most of the network based on IP addressing, in particular, how to achieve a rapid positioning of the mobile terminal and transparent mobility management, has been a wireless of the key issues in network management. This paper focuses on the mobility management protocol in WMN. First introduced the characteristics of WMN, architecture and Ad hoc wireless network is compared and analyzed the characteristics of the existing wireless network mobility management strategy, based on a P2P-based mechanisms mobility management protocol. The protocol uses an improved Kademlia algorithm, the mesh router backbone organized into a P2P network, WMN mesh client mobile information automatically registered, update and fast query and the mobile registration information network has redundant I backed up, can effectively solve the single point of failure problem. In addition, the mesh client through the registered mesh router backbone network access to network services, released its registered directly binding information in the backbone network, the home agent is not required, the triangle routing problem can be avoided. Last used the NS2 simulation tools to establish a simulation environment, the agreement of the experimental testing and data analysis, simulation results show that in the case of not significantly affect mobile handoff delay, the mobility management protocol can achieve optimum routing forwarding and preferably topology adaptability.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
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