الفهرس 
Introduction to Mobile Ad Hoc Networks ‘MANETsOnly 14 pages are availabe for public view
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Abstract
Mobile Ad hoc Network (MANET) is a collection of wireless mobile nodes (or routers)
dynamically forming a temporary network without the use of any existing network
infrastructure or centralized administration. The routers are free to move randomly and
organize themselves arbitrarily; thus, the network’s wireless topology may change rapidly
and unpredictably. Application of ad hoc networks includes Personals Area Networks
(PAN), military applications, mobile conferencing, Bluetooth and wireless sensor
networks.
Multicasting is defined as the transmission of datagram’s to a group of hosts identified
by a single destination address and hence is intended for group-oriented computing.
Application of Multicasting includes Video Conferencing, Push Technologies and
distributed Systems…etc.
Recent researches take the advantage of building Multicast Routing Protocols
on-demand mesh topology rather than tree topology. In mobile ad hoc networks, there
are many multicast protocols that apply mesh topology and on-demand concept as
”On-Demand Multicast Routing Protocol (ODMRP)”, Forwarding Group Multicast
Protocol (FGMP) …etc. The difficulties of MANETs are the scarcity of bandwidth,
short lifetime due to power consumption dynamic topology caused by nodes mobility.
This problem put in force to simple design. We discussed the architecture of different
algorithms as Shortest Path Trees (SPT) that is used in most recent Multicast routing
protocols as On-Demand Multicast Routing Protocol “ODMRP”, Minimum Spanning
Trees (MST) and Minimum Cost Trees (MCT).
This thesis, introduces multicast routing algorithm to reduce the cost of bandwidth of
MANET. We determined the minimum multicast tree by finding the Minimum
Number of Transmission (MNT) using Minimum Cost Tree (MCT) and virtual mesh
based. The proposed algorithm compared to the Shortest Path Tree (SPT) algorithm
within On-Demand Multicast Routing Protocol “ODMRP”, the one that most
multicast routing protocols in MANET are using, and found to be superior upon
bandwidth, throughput, and faster join.
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