A power control MAC protocol based on fragmentation for 802.11 multi-hop networks

Authors:
Dongkyun Kim;Eunsook Shim;C. K. Toh
Affiliations:
Department of Computer Engineering, Kyungpook National University, Daegu, Korea;Department of Computer Engineering, Kyungpook National University, Daegu, Korea;Department of Electronic Engineering, University of London Queen Mary, UK
Venue:
ICOIN'06 Proceedings of the 2006 international conference on Information Networking: advances in Data Communications and Wireless Networks
Year:
2006

Citing 2
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A power control MAC protocol for ad hoc networks

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Abstract

In order to reduce energy consumption at the 802.11 based MAC layer for MANETs (Mobile Ad Hoc Networks), there exists an approach to use the maximum power during RTS-CTS exchange and compute the required amount of power in order for DATA and ACK messages to reach the receiver and sender However, it does not consider the existence of an interference range, which results in a collision at sender Although another approach forces nodes located within a sender's interference range to defer their transmission trials in order to avoid collisions at the sender, it does not consider possible collisions at the receiver, which requires frequent retransmissions and hence greater energy consumption In this paper, we propose an efficient protocol called F-PCM (Fragmentation-based Power Control MAC) which utilizes the fragmentation mechanism of the IEEE 802.11 MAC protocol to avoid collisions at both sender and receiver Extensive simulations show it has better performance in terms of higher throughput and lower energy consumption, particularly in a dense network environment with high collision.