Prototypes& Mockups
Posted in 1 on May 8, 2009 by ram anandfinal yr project
Posted in Uncategorized with tags Add new tag on May 25, 2008 by ram anandIn a mobile ad hoc network, nodes move arbitrarily. Mobility
presents a fundamental challenge to routing protocols. Routing
protocols for ad hoc networks can be classified into two major types:
proactive and ondemand. Proactive protocols attempt to maintain up
todate routing information to all nodes by periodically disseminating
topology updates throughout the network. In contrast, ondemand
protocols attempt to discover a route only when a route is needed. To
reduce the overhead and the latency of initiating a route discovery for
each packet, ondemand routing protocols use route caches. Due to
mobility, cached routes easily become stale. Using stale routes causes
packet losses, and increases latency and overhead. In this paper, we
investigate how to make ondemand routing protocols adapt quickly to
topology changes. This problem is important because such protocols use
route caches to make routing decisions; it is challenging because
topology changes are frequent.