NDLI: Rate adaptive MAC protocol for wireless ad hoc networks

Content Provider	IEEE Xplore Digital Library
Author	Hassan, M. Ashfaqur Rahman, S. Mehedi Hasan, K. Rashedul Hasan, M.
Copyright Year	2011
Description	Author affiliation: Electrical Engineering and Computer Science (EECS), North South University, Dhaka, Bangladesh (Hassan, M.; Ashfaqur Rahman, S.; Mehedi Hasan, K.; Rashedul Hasan, M.)
Abstract	The rapid growth of IEEE 802.11 WLANs in recent years has added new dimensions to different MAC layer issues of wireless ad hoc networks. The role of rate adaptation is inevitable in wireless networks since it affects the overall performance significantly. The existing rate adaptation algorithms perform poorly in congested networks since they tend to decrease the transmission rate in high congestion scenario which results in lower throughput and overall performance degradation. A lack of proper identification of congestion measurement technique is one of the main causes of this problem. In this paper, we propose a rate adaptation scheme that employs a lightweight metric known as Channel Busy Time that can differentiate high congestion from low congestion and react according to channel quality variations. We also limit the use of RTS/CTS mechanism in high congestion scenario and show that our proposed scheme, explicitly designed to handle congestion in wireless networks, performs better than the existing rate adaptive algorithms.
Starting Page	454
Ending Page	458
File Size	740258
Page Count	5
File Format	PDF
ISBN	9781467300995
e-ISBN	9781467301022
DOI	10.1109/SCOReD.2011.6148782
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-12-19
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis IEEE 802.11 Standards Wireless networks Heuristic algorithms CSMA/CA rate adaptation Throughput Ad hoc networks wireless adhoc network congestion
Content Type	Text
Resource Type	Article

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