Title :
Cooperative packet caching and shortest multipath routing in mobile ad hoc networks
Author :
Valera, Alvin ; Seah, Winston K G ; Rao, S.V.
Author_Institution :
Dept. of Comput. Sci., Nat. Univ. of Singapore, Singapore
Abstract :
A mobile ad hoc network is an autonomous system of infrastructureless, multihop wireless mobile nodes. Reactive routing protocols perform well in such an environment due to their ability to cope quickly against topological changes. In this paper, we propose a new routing protocol called Caching and Multipath (CHAMP) Routing Protocol. CHAMP uses cooperative packet caching and shortest multipath routing to reduce packet loss due to frequent route breakdowns. Simulation results reveal that by using a five-packet data cache, CHAMP exhibits excellent improvement in packet delivery, outperforming AODV and DSR by at most 30% in stressful scenarios. Furthermore, end-to-end delay is significantly reduced while routing overhead is lower at high mobility rates.
Keywords :
ad hoc networks; cache storage; mobile radio; network topology; routing protocols; AODV; DSR; caching and multipath routing protocol; cooperative packet caching; end-to-end delay; five-packet data cache; mobile ad hoc networks; mobility rates; multihop wireless mobile nodes; network topological changes; packet delivery; packet loss; reactive routing protocols; route breakdowns; routing overhead; shortest multipath routing; simulation; Computer networks; Computer science; Delay; Electronic mail; Intelligent networks; Mobile ad hoc networks; Mobile communication; Network topology; Routing protocols; Spread spectrum communication;
Conference_Titel :
INFOCOM 2003. Twenty-Second Annual Joint Conference of the IEEE Computer and Communications. IEEE Societies
Print_ISBN :
0-7803-7752-4
DOI :
10.1109/INFCOM.2003.1208678
