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Multicast Operation of the Node Transition Probability (NTP) based Routing Protocol in Adhoc Networks Hemalatha. L v Kavitha. S w Lakshmi. T
An adhoc network is the cooperative engagement of a
collection of (typically wireless) mobile nodes
without the required intervention of any
centralized access point or existing
infrastructure. To provide optimal communication
ability in this high mobility and low signal to
noise ratio environment routing protocols for such
a dynamic self starting network are required to be
robust, simple and energy conserving along with the
capability of unicast, broadcast and multicast. The
popularity of group oriented computing is
increasing tremendously. With the Internet
technology growing at this fast pace, applications,
such as video conferencing, that require multicast
feature are becoming widespread. Several routing
protocols such as On-Demand Multicast Routing
Protocol (ODMRP), Multicast operation of Ad-Hoc
On-Demand Distance Vector (AODV), Reservation Based
Multicast (RBM) Routing Protocol which attempt
multicasting have been proposed in literature. In
all these existing algorithm the control overhead
contributes to the overall inefficiency of
bandwidth and power utilization. To overcome this
drawback and to maximize the bandwidth utilisation,
in Node Transition Probability (NTP) based routing,
the node transition probability is computed using
the received power at a particular node from all
other nodes. This algorithm adapts quickly to
routing changes when host movement is frequent. In
our project we extend this Node Transition
Probability (NTP) based routing, to offer novel
multicast capabilities that follow from the way NTP
establishes unicast routes. We are using the
Glomosim Simulator to implement and study the
performance of the multicast operation in NTP based
routing protocol and present the routing efficiency
of this protocol compared to other multicast
protocols in terms of reduced control overhead. |
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