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A Node-Disjoint Multi-Path Routing Protocol in AODV-based Mobile Ad-hoc Networks  

Kim, Tae-Hun (부산대학교 컴퓨터공학과 임베디드 네트워크 시스템 연구실)
Chung, Shang-Hwa (부산대학교 컴퓨터공학과 임베디드 네트워크 시스템 연구실)
Kang, Su-Young (부산대학교 컴퓨터공학과 임베디드 네트워크 시스템 연구실)
Yoo, Young-Hwan (부산대학교 컴퓨터공학과 유비쿼터스 컴퓨팅 연구실)
Abstract
In this paper, we propose a new multi-path routing protocol to provide reliable and stable data transmission in MANET that is composed of high-mobility nodes. The new multi-path routing establishes the main route by the mechanism based on AODV, and then finds the backup route that node-disjoint from the main route by making add nodes in the main route not participate in it. The data transmission starts immediately after finding the main route. And the backup route search process is taking place while data is transmitted to reduce the transmission delay. When either of the main route or the backup route is broken, data is transmitted continuously through the other route and the broken route is recovered to node-disjoint route by the route maintenance process. The result of the simulation based on the Qualnet simulator shows that the backup route exists 62.5% of the time when the main route is broken. And proposed routing protocol improved the packet transmission rate by 2~3% and reduced the end-to-end delay by 10% compared with AODV and AODV-Local Repair.
Keywords
AODV; Multi-path Routing; Node-disjoint; MANET; Transmission Delay;
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