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Design and Realization of a Multi-Channel MAC Protocol MCMS in Wireless Sensor Networks

Author: SunWeiMing
Tutor: ChenHuiHuang；ShiJiangHong
School: Xiamen University
Course: Communication and Information System
Keywords: wireless sensor network MAC protocol multi-channel
CLC: TP212.9
Type: Master's thesis
Year: 2008
Downloads: 123
Quote: 2
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Abstract


Wireless Sensor Network (WSN) is a new research area of computer science and technology. As it has a wide application future in geophysical monitoring, precision agriculture, habitat monitoring, transportation, military systems and business processes, both academia and industries are very interested in it. Research of WSNs communication protocols includes medium access control (MAC) protocols, routing protocols, energy efficiency, data fusion and so on. MAC protocols control physical layer (PHY) and provide reliable services directly to network layer, so it is one of the key technologies of WSNs and have a great influence on WSNs performance.Through in-depth study single-channel and multi-channel MAC protocols of general Ad hoc network, we abstract a channel model of wireless sensor networks, and against this model, a multi-channel MAC protocol MCMS was designed for WSNs in this dissertation. MCMS integrated use dynamic channels assign mechanism, soft reserve mechanism, short frame mechanism and power control mechanism, to ensure a certain energy effectiveness, and reduce network packet loss, improve the network throughput and anti-jamming performance.Firstly, the dissertation introduced reserch backgrounds, characteristics, application areas of WSNs and structure of WSNs. Secondly, the dissertation discussed existing MAC protocols and keys of MAC protocols. Then a new multi-channel MAC protocol named MCMS for WSN was designed. Thirdly, MCMS was implemented and tested in SCINs platform which is developed by our project team. Finally, the dissertation draws a conclution by summarizing the research and presenting direction for future work.Results of tests show that compared with classical single-channel MAC protocols, the multi-channel MAC protocols MCMS can effectively decrease packet loss, improve mean throughput and anti-jamming performance of WSNs.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Sensor applications
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