A Multi-Channel MAC Protocol Design Based on IEEE 802.15.4 Standard in Industry

摘要：

With the development of wireless sensor networks in industry, it is difficult for MAC protocol with single channel to meet the demands of combating interference, high reliability and low delay. The multichannel MAC protocol is a promising approach to meet these challenges. IEEE 802.15.4 standard is the foundation of ZigBee, WirelessHART and ISA100. This article proposes a multi-channel MAC protocol based on 802.15.4 standard for industrial wireless sensor networks. First we monitor the wireless signal in industry environment—The Institute of Electronics Chinese Academy of Sciences, and establish signal interference model for wireless sensor networks. Then a maximum discrete channel allocation algorithm is designed. Last, in order to realize multichannel, we extend 802.15.4 MAC protocol by adding RTS(Request To Send) and CTS(Clear To Send) in CAP(Contention Access Period) and modifying the GTS(Guaranteed Time Slot) list structure in CFP(Contention Free Period). Theoretical analysis shows that this multi-channel MAC protocol can reduce interference and increase capacity of system communication effectively. This protocol is suitable for large scale network.

关键词： industrial wireless sensor networks IEEE 802.15.4 multi-channel MAC protocol

作者: Cuimei Wu Hairong Yan Hongwei Huo

作者单位: Embedded Software and System Institute,Beijing University of Technology,Beijing, CHINA Embedded software and System Institute,Beijing University of TechnologyBeijing, CHINA China Science and Technology Exchange Center Beijing, CHINA

会议类型: 国际会议

会议名称: IEEE 10th International Conference on Industrial Informatics(第十届IEEE工业信息学国际学术会议 INDIN2012)

会议地点: 北京

会议语种:英文

页码: 1206-1211

在线出版日期: 2012-07-25（万方平台首次上网日期，不代表论文的发表时间）