Improved AODV routing algorithms based on neighbor survival ratio
LIU Jin-ding1,YAN Han2
(1.College of Information Science & Technology, Nanjing Agriculture University, Nanjing 210095 China;2.College of Computer Science & Engineering, Nanjing University of Science & Technology, Nanjing 210094, China)Abstract:In the traditional AODV routing protocol, the route discovery algorithm does not consider route’s stability, and the local repair algorithm does not avoid the instability regional around broken link.Aiming at the above-mentioned problems, the article proposed an improved AODV algorithm based on neighbor survival ratio (AODV-NSR).With neighbor survival ratio of node, AODV-NSR improved the route discovery algorithm and enhanced route’s stability. With broken link responsibility detecting and data rescue mechanisms, AODV-NSR improved the local repair algorithm and made repaired route avoid the instability regional at full steam, and so diminished the probability of broken link. The result of the simulation indicates that AODV-NSR protocol can reduce the end-to-end delay, routing overhead and enhance packet delivery rate. ......