NDLI: Fairness-enhanced multiple control channels MAC for ad hoc networks

Content Provider	IEEE Xplore Digital Library
Author	Koubaa, H.
Copyright Year	2005
Description	Author affiliation: Dept. of Electron. & Telecommun., Norwegian Univ. of Sci. & Technol., Trondheim, Norway (Koubaa, H.)
Abstract	The throughput in IEEE 802.11 ad hoc networks can be improved by exploiting the presence of multiple channels and thus allowing multiple nodes to transmit concurrently on different channels. This has been shown by previous work. Some multi-channel MAC protocols use one control channel for exchanging control messages in order to assign concurrently different data channels to different pairs of nodes. On one hand, this previous work does not discuss how to use the control channel, and assumes that the IEEE 802.11 MAC mechanism is used for control packets transmission. Furthermore, no previous multiple channel related study has discussed the fairness performance. In this paper, based on a simple example, we show that deafness and unfairness problems can take place when using multiple data channels. We propose a new medium access control algorithm for control packets to better use the wireless medium. On the other hand, given a large number of available channels, using only one control channel limits the number of useful data channels since only a few nodes succeed in negotiating data channels. This is called control channel saturation in J. So et al. (2004). We therefore propose a new multi-control channels medium access control (MCMAC) protocol, characterized by the following features: (1) the number of control channels used concurrently is a function of the total number of available channels and the data packet size; (2) these control channels are used concurrently to negotiate different subsets of data channels, and each subset of data channels is attributed to each control channel.
Starting Page	1504
Ending Page	1508
File Size	126214
Page Count	5
File Format	PDF
ISBN	0780388879
ISSN	15502252
DOI	10.1109/VETECS.2005.1543570
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-30
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ad hoc networks Media Access Protocol Throughput Size control Data communication Telecommunication control Deafness Access protocols Physical layer Interference
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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