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Wireless mesh network routing protocol and implementation

Author: WuJianXin
Tutor: ZhuCuiTao
School: Central South University for Nationalities
Course: Communication and Information System
Keywords: Wireless mesh networks Routing Protocol AODV Congestion Control Stable
CLC: TN929.5
Type: Master's thesis
Year: 2009
Downloads: 75
Quote: 2
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Abstract


Wireless mesh networks as a new self-organizing , multi-hop characteristics of broadband wireless networks , it has a higher rate , easier networking , lower cost , more stable performance and other advantages, and the ability to solve a variety of interconnected heterogeneous wireless networks . As a wireless mesh network routing most critical technologies required to have high quality and efficient communication network routing protocol is to ensure the proper operation of the key . Therefore, the research and development of more suitable for wireless mesh network routing protocol in both theory and application of considerable significance. This paper summarizes the first wireless mesh network routing protocols , the first of wireless mesh network routing protocols on key issues and performance indicators are described , and in the NS-2.29 , respectively in the stationary and mobile environments for DSDV, DSR, AODV three types of routes agreement to do the relevant simulations to verify . Then this article from the route discovery process forward and reverse route to establish a detailed analysis of AODV routing protocol , on this basis , we propose a joint congestion control stability of the selected wireless mesh routing protocol , the key idea is based on the cached queue length divided into congestion control, with a penalty function to limit the size of the routing node mobility rate selection , good stability preferred routing node involvement , in order to make routing more stable and reliable . Again from the route request phase and route response phase , respectively, illustrate the improved AAODV each routing protocol packet processing , analysis by testing different mobile node rate, the penalty factor values ​​for packet delivery ratio , end to end delay and the impact of routing overhead , according to the congestion status of nodes to determine the penalty factor . In the last article describes AODV and AAODV in NS2 implementation , set the appropriate environment for simulation simulation results show that the protocol in packet delivery ratio , end to end , the average delay of two properties are better than AODV, improved network performance , better suited for applications requiring reliable network quality of wireless mesh networks .

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