MAC protocol communication method and device for synchronous wireless sensor network

A wireless sensor and protocol communication technology, applied in wireless network protocol, wireless communication, electrical components, etc., can solve the problem of high energy consumption of MAC protocol, and achieve the effects of saving energy consumption, simple implementation, and reducing control overhead
CN104302010AInactive Publication Date: 2015-01-21HENAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HENAN UNIV OF SCI & TECH
Publication Date
2015-01-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a MAC protocol communication method and device for a synchronous wireless sensor network. According to the method, by utilizing a periodic scheduling work mode in the node life period, each cycle period of a node is divided into synchronization time period, busy tone monitoring / sending time period, channel appointment time period and sleep time period, so that the node is allowed to carry out different operation in each time period according to the partial monitoring results; node leisure monitoring time is reduced; data multihop appointment continuous transmission in a cycle period is realized; requirement for data sending timeliness is adapted to; node period monitoring / sleeping duty ratio changes dynamically with the change of the service; node energy consumption is greatly saved; and meanwhile, through relay node selection in the channel appointment time period, channel appointment and route selection are combined together, and thus control overhead is reduced and the realization is simple.
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Description

technical field

[0001] The invention relates to a MAC protocol communication method for a synchronous wireless sensor network, belonging to the field of wireless sensor networks. Background technique

[0002] Since wireless sensor networks are powered by batteries, the lifetime of the network is limited by energy. In order to save energy, the MAC protocol of wireless sensor network usually adopts the mechanism of periodic listening / sleep to save energy. Such protocols include SMAC, TMAC, PMAC, ASMAC, RMAC, etc. SMAC, TMAC, and PMAC protocols usually operate in a cycle Data can only be transmitted for one hop, and the adaptive ASMAC protocol can be transmitted for at most two hops, but it uses crosstalk monitoring and awakening of all neighboring nodes to increase the energy consumption of the network. Therefore, this kind of protocol causes intermittent data transmission process, which makes the multi-hop delay of data transmission large, and is not suitable for wireless se...

Claims

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