NDLI: Assured Forwarding in multi-hop wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Sungwon Han Euiyul Ko Ikjun Yeom
Copyright Year	2008
Description	Author affiliation: Dept. of Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon (Sungwon Han; Euiyul Ko; Ikjun Yeom)
Abstract	The assured forwarding (AF) service in a differentiated services network offers different levels of forwarding assurance for IP packets. Several studies have proposed to manipulate the contention window size to provide service differentiation in wireless networks. However, since network congestion in multi-hop wireless networks causes packet losses at the link layer, the contention window size based differentiation scheme is not sufficient to provide the AF service. In this paper, we propose a rate control scheme to control load on the shared channel by adjusting sending rate according to the estimated channel state and the amount of AF traffic. We further propose a RTS retry limit adaptation scheme to compensate the rate control scheme when the accurate estimation of the channel state is not easy. Throughout extensive simulations, we show that proposed schemes are effective to differentiate forwarding assurance in multi-hop wireless networks.
Starting Page	416
Ending Page	421
File Size	1655983
Page Count	6
File Format	PDF
ISBN	9781424425747
DOI	10.1109/MAHSS.2008.4660011
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless networks Channel estimation Interference Throughput Topology Delay Contracts
Content Type	Text
Resource Type	Article

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