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Title : DCEEMR: A Delay-constrained Energy Efficient Multicast Routing Algorithm in Cognitive Radio ad hoc Networks
Author(s) : X. Zhou
Filename : draft-zhou-dceemr-00.txt
Pages : 16
Date : 2010-8-25
In this paper, we discuss the delay-constrained energy efficient
multicast routing problem in cognitive radio ad hoc networks. A
cognitive radio ad hoc network is a wireless multi-hop network
established by secondary users on varying available spectrum bands.
The routing research is a hotspot in the field of cognitive radio
ad hoc networks. However, multicast routing algorithm study of
cognitive radio ad hoc networks is still in starting stage. In this
paper, we proposed a novel delay-constrained energy efficient
multicast routing algorithm (DCEEMR) in cognitive radio ad hoc
networks. The DCEEMR guarantees that the multicast tree can be found
if it exists, and the multicast tree satisfies the delay bound and
has low energy consuming. The algorithm uses delay-energy function
to construct the multicast tree based on the spectrum selection.
Through an example with randomly network topology, we demonstrate
that our algorithm is better in terms of energy cost of multicast
tree as compared to the existing algorithm QoS Dependent Multicast
Routing (QDMR). Moreover, the algorithm does not suffer from high
complexity common to the algorithm QDMR. Experiment results by NS-2
show that the delay and tree cost are lower than well-known
Multicast ad- hoc On-demand Distance Vector (MAODV) protocol.
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