| المستخلص: |
Mobile ad-hoc networks is the base infrastructure for many useful applications. The protocols used in mobile ad-hoc networks are the base protocols for several applications like wireless sensor networks (WSN) which could be used in industry and monitoring purposes, VANET (vehicular ad hoc networks) which is a network of mobile vehicles. This type of networks has significant importance, and unique characteristic. MANET consists of mobile nodes that move in and out of the network in unorganized fashion, no central administration or infrastructure exists. As a result, the need to design a protocol that can provide the necessary reliability, connectivity, and security increases. In this thesis we present current routing protocols under “FLAT class” category. Specially AODV, DSR, TORA, DSDV, OLSR and DYMO protocols. We experimentally evaluate 4 of these protocols and conclude comparison in performance and behavior under several scenarios like high mobility, high density, and also limited power nodes and others. We claim that current protocols are not enough to cube all the challenges and all conditions facing ad-hoc networking. And hence we add some contributions to enhance the reliability and connectivity of the current routing protocols. In this thesis we proposed new routing algorithm that considers two of the major problems facing MANET networks, power and mobility. This algorithm is built based on the AODV routing protocol by modifying the optimal route selection scheme. The proposed algorithm considers the mobility and remaining energy instead of minimum number of hops. The simulations shows promising results as we will show next in chapter 6.
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