Routing and Mobility Strategies for Mobile Ad Hoc Networks

TLDR: Three new routing approaches for mobile ad hoc networks within the context of the previously described situations are developed to study the behaviour of a routing protocol when only the "self-dependent" parameter exists for routing information.

Abstract: AbstTact Mobile Ad hoc NETworks (MANET) are envisioned to become key components in the architecture of the next generation network. In contrast to wired and cellular networks, a MANET is an infrastructureless network that does not depend on any established infrastructure or centralised administration such as a base station. It is an autonomous system of wireless mobile nodes that move freely, randomly and organise themselves arbitrarily. Therefore, the network topology of an ad hoc network is dynamic in nature and may change rapidly and in unpredicted manner. Hence, the intercommunications among nodes are changing continuously. Generally, communication between a source node and a destination node in MANETs are established through multiple intermediate nodes. As a result, any link breaks between any two directly communicating nodes of the established path will result in a break of the complete connection between the source and the destination nodes. In addition, the mobility of nodes results in route loss, poor longevity of established routes, asymmetric communications links, increase in the control traffic overhead and affects the performance of the routing protocol. Moreover, using a number of routing parameters for routing such as geographical location, speed, and signal strength requires a number of resources to provide these parameters. These resources are unlikely to be always available at the same time. The aim of this research is to develop three new routing approaches for mobile ad hoc networks within the context of the previously described situations. One objective of developing these approaches is to study the behaviour of a routing protocol when only the "self-dependent" parameter exists for routing information. Other information is absent in the network, such as location information, speed, etc. Another objective is to exploit the mobility of nodes to establish long-lived routes by using the heading direction information of mobile hosts. As third objective, the scope of route requests is to be limited in order to reduce the overhead in the network. The three new approaches