Dynamic Spectrum Allocation MAC protocol based on Cognitive Radio for QoS support

Joe, Inwhee; Son, Seonbong

doi:10.1109/FCST.2008.16

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Dynamic Spectrum Allocation MAC protocol based on Cognitive Radio for QoS support

Joe, Inwhee;
Son, Seonbong

Citations

SCOPUS

11

초록

To address inefficiency of the spectrum utilization and the limited available spectrum band, Cognitive Radio has emerged as a significant solution. In this paper, we propose a novel MAC protocol in multi-channel wireless networks by using Dynamic Spectrum Allocation (DSA) based on Cognitive Radio for QoS support. According to the user request, variable spectrum is allocated for quality of service (QoS) guarantee through DSA mechanism. Dynamic spectrum allocation is implemented with the procedure of FRQ/FRP/ACK-hello over a control channel, DATA/ACK over allocated data channels. For cooperative detection, a hello message is exchanged periodically to enhance the spectrum sharing in our MAC protocol. In addition, the results of performance evaluation demonstrate that the proposed DSA-MAC protocol improves the throughput significantly, as compared to the IEEE 802.11 MAC.

키워드

Cognitive radios; Control channels; Cooperative detections; Data channels; Dynamic spectrum allocations; Hello messages; Ieee 802.11 macs; Mac protocols; Multi channels; Performance evaluations; Qos supports; Quality of service guarantees; Spectrum bands; Spectrum sharing; Spectrum utilizations; Ad hoc networks; Analog differential analyzers; Computers; Quality of service; Radio systems; Standards; Radio

제목: Dynamic Spectrum Allocation MAC protocol based on Cognitive Radio for QoS support

저자: Joe, Inwhee; Son, Seonbong

DOI: 10.1109/FCST.2008.16

발행일: 2008-12

유형: Conference Paper

저널명: Proceedings - 2008 Japan-China Joint Workshop on Frontier of Computer Science and Technology, FCST 2008

페이지: 24 ~ 29