Long-distance line type wireless sensor network cross-layer communication method

Abstract

The invention discloses a long-distance line type wireless sensor network cross-layer communication method. The long-distance line type wireless sensor network cross-layer communication method includes the following steps that: at first, a wireless sensor network adopts a double-chain topologic structure, and each aggregation node only communicates with two sensor nodes; and then, the aggregation nodes perform whole-network periodic time synchronization; and finally, the sensor nodes synchronously perform periodic monitoring and sleep, wherein the periodic monitoring and sleep includes a monitoring phase and a sleep stage, in the monitoring phase, the sensor nodes compete time slot deployment of the whole-network sensor nodes through transmitting time slot deployment requests, and in the sleep stage, the sensor nodes perform data transmission according to the time slot deployment of the sensor nodes their own. According to the long-distance line type wireless sensor network cross-layer communication method of the invention, the characteristics of the long-distance line type wireless sensor network are considered; a cross-layer design method is adopted, and communication decision threshold and time slot deployment modes are adopted in combination, and therefore, the network can be more suitable for cross-layer protocols; and the problem of long time delay caused by periodical monitoring and sleep can be solved.

Description

technical field [0001] The invention belongs to the field of wireless sensor network and electronic measurement and control, and in particular relates to a long-distance linear wireless sensor network cross-layer communication method. Background technique [0002] With the development and application of wireless sensor network technology, its application in engineering is becoming more and more extensive. As a common network topology in industrial applications, long-distance linear wireless sensor network has broad application prospects and development space. Long-distance linear wireless sensor network is a common structure in engineering, and its monitoring area is similar to a line, such as roads, rails, mines, rivers, bridges, etc. can be approximated as linear areas. At present, the research hotspots of wireless sensor network itself mainly focus on three key technologies: network communication protocol, network management technology and network support technology. It ...

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Problems solved by technology

[0006] In order to solve the problems in the above-mentioned background technology, the present invention aims to provide a long-distance linear wireless sensor network cross-layer communication method,...

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