كلية التربية الاساسية / حديثة

م.م. علاء صبري عواد

قسم التاريخ

كلية التربية الأساسية / حديثة – جامعة الانبار

A mobile ad-hoc network (MANET) is formed by a cluster of mobile hosts, each installed with a wireless transceiver, without the assistance of base stations. Due to the transmission range constraint of transceivers, two mobile hosts may communicate with each other indirectly, by having other mobile hosts relay their packets. Several routing protocols have been proposed for a MANET to support the delivery of packets between mobile hosts in a dynamically changing topology. In a MANET, a route, while being used for transmission, may become worse due to host mobility or the system may newly form some better routes. Existing protocols, such as DSR, SSA, AODV, and ZRP, however, will stick on a fixed route between a pair of mobile hosts once it is discovered, until the route is expired or broken. Several studies show how to enhance these four protocols with route optimization capability, such that the routing paths can be adjusted on-the-fly while they are still being used .