| Summary: | M. Tech. Electrical Engineering Telecommunications.. === In recent years the telecommunications society has witnessed an upsurge of interest in
infrastructure-based multi-hop communications. The fundamental reason for this has been the
fact that multi-hop communication provides benefits such as coverage extensions, combating
of shadowing at high radio frequencies and reduced infrastructure deployment costs. It is
envisioned by the telecommunication fraternity that the Wireless Local Area Networks
(WLAN) technology will likely be merged with future wireless broadband technologies such
as 3G. The network resulting from this merger might use the WLAN techniques for peer-topeer
communication or serve as relay networks to extend the range and increase the capacity
of future wireless broadband networks. These developments clearly indicate that WLAN will
play an integral part in the performance enhancement of future wireless broadband networks.
Hence, it is imperative that the WLAN performance be enhanced.
WLANs are limited in range. One standard approach to extend the range of WLANs is to use
multi-hop communication systems. Typically, a multi-hop communication system is
implemented by randomly setting the nodes transmit power to maximum levels that link the
nodes together to cover a specific range (Conventional Multi-hop Network). The high levels of
transmit power result in high power consumption and probability of interference within the
already congested 2.4GHz Industrial, Scientific and Medical (ISM) spectrum. This study
proposes a Power-efficient Multi-hop Communication Algorithm (PMCA) for the
implementation of power-efficient IEEE 802.11 multi-hop communication systems.
-VIIISimulations
results show that the PMCA based multi-hop networks performs better than the
conventional multi-hop networks.
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