NDLI: Low-latency multichannel cut-through vs. CSMA/CA wireless mesh networking

Content Provider	IEEE Xplore Digital Library
Author	McTasney, R. Grunwald, D. Sicker, D.
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. Eng. & Comput. Sci., United States Mil. Acad., West Point, NY (McTasney, R.; Grunwald, D.) \|\| Dept. of Comput. Sci., Univ. of Colorado at Boulder, Boulder, CO (Sicker, D.)
Abstract	Initial entry during deployment requires tactical networks supporting voice, video, and data requirements to be established quickly given little existing telecommunication infrastructure. Wireless mesh networks using contention-based medium access control (MAC) appear to be an easy off-the-shelf solution, but their performance is lacking for support of such diverse high-bandwidth low-latency requirements. In the 1990s, wired and optical network architects had to reconsider the inefficiencies of packet switching and consider long proven methods such as circuit-switching to reduce latency through traffic engineering to support such diverse traffic requirements. This resulted in the development of asynchronous transfer mode (ATM) and multi-protocol label switching (MPLS) technologies. Because both are mature and proven technologies for wired and optical network architectures, much research has been done to apply these methods to wireless mesh networks. But optimal performance improvement eludes wireless mesh network designers because of differences between the wired/optical and wireless environments in the provision of non-interfering unidirectional internodal links and lack of a wireless circuit switch. We propose a wireless mesh networking architecture that will provide low-latency and potentially higher throughput, based upon the availability of multiple orthogonal channels, wormhole switching supported by a physical layer circuit-switch, and a reservation protocol that will assign channels to provide non-interfering unidirectional internodal links through quality-of-service (QoS) routing, and scheduling. We will also present performance results based upon a simulation model of our proposed architecture to show how end-to-end latency is considerably reduced compared to 802.11-based wireless mesh networks.
Starting Page	1
Ending Page	7
File Size	311241
Page Count	7
File Format	PDF
ISBN	9781424426768
DOI	10.1109/MILCOM.2008.4753652
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiaccess communication Wireless mesh networks Optical fiber networks Delay Asynchronous transfer mode Switching circuits Media Access Protocol Packet switching Communication system traffic control Telecommunication traffic
Content Type	Text
Resource Type	Article

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