NDLI: QMAC: a QoS-guaranteed MAC protocol with dynamic granularity control for local wireless ATM networks

Content Provider	IEEE Xplore Digital Library
Author	Yuang, M.C. Lo, B.C.
Copyright Year	2001
Description	Author affiliation: Dept. of Comput. Sci. & Inf. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan (Yuang, M.C.)
Abstract	We propose a QoS-guaranteed MAC protocol (QMAC) augmented with dynamic granularity (frame size) control, aiming to provide bandwidth-on-demand while retaining maximal throughput. QMAC supports three types of ATM traffic-CBR, VBR, ABR, along with reservation request (RVR) traffic for making connection reservation. While CBR/VBR/ABR is governed by reservation access over the reservation bandwidth, RVR is conducted by random access over the contention bandwidth. QMAC essentially exerts dynamic granularity control on per-frame-based allocation of the reservation and contention bandwidth. The reservation bandwidth is allocated following a weight-based scheduling policy. For the allocation of the contention bandwidth, based on a neural-fuzzy traffic prediction technique, QMAC derives the "favorable bandwidth" implying maximum throughput. The smaller value between the favorable bandwidth and remaining unreserved bandwidth is designated as the contention bandwidth. Simulation results demonstrate that, compared to a set of MAC alternatives under M-Pareto-distributed and dynamic traffic settings, QMAC invariantly achieves superior performance with respect to throughput, access delay, and blocking probability.
Starting Page	2359
Ending Page	2364
File Size	693510
Page Count	6
File Format	PDF
ISBN	0780370971
DOI	10.1109/ICC.2001.936554
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-06-11
Publisher Place	Finland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Media Access Protocol Wireless application protocol Bandwidth Time division multiple access Communication system traffic control Throughput Telecommunication traffic Delay Bit rate Frequency
Content Type	Text
Resource Type	Article

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