Memorised carrier sense multiple access with collision avoidance (MCSMA/CA) protocol for IEEE 802.11p

NCUIR > College of Electrical Engineering & Computer Science > Department of Communication Engineering > journal & Dissertation > Item 987654321/106009

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Title:	Memorised carrier sense multiple access with collision avoidance (MCSMA/CA) protocol for IEEE 802.11p
Authors:	吳中實;Wu, Jung-Shyr;Cheng, Yen-Chieh;Sheu, Shiann-Tsong
Contributors:	資訊電機學院通訊工程學系
Keywords:	Access methods and protocols, osi model;Applied sciences;Business and industry local networks;Carriers;Channels;Collision avoidance;COMPUTING JOURNALS;Emergencies;Exact sciences and technology;Interconnected networks;Internet;Internet and Web Services;Multiple access;Networks and services in france and abroad;Switches;Systems, networks and services of telecommunications;Telecommunications;Telecommunications and information theory;Teleprocessing networks. Isdn;Transmission and modulation (techniques and equipments);Transmission efficiency
Date:	2012-01-01
Issue Date:	2026-04-23 13:03:39 (UTC+8)
Publisher:	Inderscience Enterprises Ltd;Gen�ve: Inderscience Publishers Ltd
Abstract:	摘要： The wireless access in vehicular environment (WAVE) architecture has been standardised in the IEEE 802.11p specification in order to be widely deployed in roadway environments. The aim of the WAVE networks is to provide prompt emergency information as well as internet connectivity. However, the IEEE 802.11p contention-based medium access control (MAC) protocol would deteriorate transmission efficiency if the number of on-board units (OBUs) contending on an SCH is large. Moreover, synchronizing all WAVE devices that perform channel switching may experience a period of above-average channel congestion immediately following a channel switch, possibly resulting in an unexpectedly high collision rate. As a solution, we propose an efficiency improvement scheme, namely memorized carrier sense multiple access with collision avoidance (MCSMA/CA) protocol, which improves the SCH throughput by means of a channel context switch mechanism. Numerical and simulation results demonstrate that the proposed scheme significantly promotes the standard transmission efficiency. 其他題名： ijipt 出版者： Genève: Inderscience Publishers Ltd 出版日期： 2012-01-01 出處： International journal of internet protocol technology, 2012-01, Vol.7 (1), p.52-61 版權： Copyright © 2012 Inderscience Enterprises Ltd. 版權： 2015 INIST-CNRS 識別號： ISSN: 1743-8209 識別號： EISSN: 1743-8217 識別號： DOI: 10.1504/IJIPT.2012.047589
Appears in Collections:	[Department of Communication Engineering] journal & Dissertation

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