A power optimization algorithm for the implementation of IEEE 802.11 Multi-Hop Networks.

• Main Author: Gumbi, Lucas Nhlanhla
• Other Authors: Chatelain, D.
• Format: Others
• Language: en
• Published: 2006
• Online Access: http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000846

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.