DEMAC: A Cluster-Based Topology Control for Ad Hoc Networks
The presence of transient network links, mobility and limited
battery power of mobile nodes in MANETs poses a hefty
challenge for such networks to scale and perform efficiently
when subjected to varying network condition. Most of the
topology control algorithms proposed have high control overhead
to discover and maintain route from source to destination. They
also have very high topology maintenance cost. To minimize
routing overhead and topology maintenance cost CBRP (Cluster
Based Routing Protocol) was developed. It performs better than
other approaches in most of the cases.
In this paper, an energy and mobility aware clustering approach
is presented. The clustering approach is incorporated in a DSR
like protocol for routing in MANET to evaluate the performance
improvement gained due to clustering using proposed approach.
Rate of cluster head changes, throughput of the network, delay
and routing overhead is evaluated using NS2. Simulation results
reveal that proposed approach has better performance in
comparison with CBRP.
Keywords: Mobile Ad-Hoc Networks, Topology Control,
Clustering
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