Abstract: In the recent years, wireless technology has enjoyed a tremendous rise in popularity and usage, thus opening new fields of applications in the domain of networking. Without using any fixed structural support the information is exchanging in the network of mobile devices. Such networks are termed as ad –hoc network. One of the most important of these fields concerns mobile ad hoc networks (MANETs), where the participating nodes do not rely on any existing network infrastructure. Ad hoc On-Demand Distance Vector (AODV) is a widely used routing protocol for mobile ad hoc networks (MANETs). The nodes in the network are themselves responsible for routing the packets from the source to the destination. These nodes are also responsible to make the transfer of packets secure. In the mobile Adhoc network environment, a number of factors such as noise, physical obstructions mobility, and weather conditions contribute to the difficulty of accurately modeling the behavior of the lifetime of a link between two mobile nodes. Due to the inherently dynamic nature of the network topology, the current links are frequently broken, and new links are frequently established. Mobile Adhoc network requires reliability and security of data packets. The quality of service must satisfy end to end data packet delivery and no packet data loss. In this paper we provide survey on the effects of mobility on the link lifetime.

Keywords: MANET, residual link lifetime, velocity change detection, Quality of service, Route Discovery.