Improving Energy Efficiency and Throughput in Heterogeneous Mobile Ad Hoc Networks

Improving Energy Efficiency and Throughput in Heterogeneous Mobile Ad Hoc Networks

Manu.J. Pillai (Kerala University, India) and M. P. Sebastian (National Institute of Technology Calicut, India)
DOI: 10.4018/jmcmc.2009040104
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The nodes are expected to transmit at different power levels in heterogeneous mobile adhoc networks, thus leading to communication links of different length. Conventional MAC protocols that unconditionally presume that links are bi-directional and with unvarying energy distribution may not succeed or execute badly under such circumstances. Interference and signal loss resulting out of distance and fading diminish the entire throughput attained in heterogeneous networks to a greater extent. This article presents a MAC protocol, which adaptively transmits data frames using either the energy efficient nodes or a list of high data rate assistant nodes. In addition, a cross-layer based energy level on-demand routing protocol that adaptively regulates the transmission rate on basis of congestion is projected as well. Simulation results illustrate that the proposed protocols considerably diminish energy consumption and delay, and attain high throughput in contrast with the Hybrid MAC and traditional IEEE 802.11 protocols.

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