An optimal deployment method for multi-chain wireless sensor network nodes

Abstract

The invention discloses an optimized deployment method for multi-chain wireless sensor network nodes. The method is characterized in that a plurality of sensor nodes are unevenly deployed in a two-dimensional circular monitored area, one sink node is deployed in the center of the circular monitored area, and the sink node and the sensor nodes are arranged at unequal intervals to jointly form a multi-chain structure; the number of the sensor nodes deployed on each chain is identical, and the distance between the sink node and the sensor nodes on a same layer of each chain is identical; on each chain, the distance between every two adjacent sensor nodes decreases with the distance between the two adjacent sensor nodes and the sink node; sink sensor nodes on each chain periodically collect data and send the data to the sink node through multi-hops; and data transmission among the chains is carried out through time division multiplexing. The method provided by the invention has the advantages that a chained topology structure and a star topology structure are combined, and the nodes are deployed at the unequal intervals, so that the network life cycle is prolonged, and communication interference among the chains is eliminated.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and in particular relates to an optimal deployment method of multi-chain wireless sensor network nodes. Background technique [0002] Wireless sensor network is a new type of wireless network composed of a large number of sensor nodes through self-organization. Because wireless sensor networks have significant advantages such as high monitoring accuracy, low power consumption, low cost, large coverage area, and easy deployment, wireless sensor networks have been widely and rapidly developed. Deploying wireless sensor network (WSN) nodes to specific areas to monitor and collect certain environmental data can be widely used in special fields such as environmental monitoring, medical monitoring, agricultural breeding, and disaster rescue. How to design different engineering applications? WSN has become a big topic. [0003] Node deployment is an important issue in wireless sensor ...

AI Technical Summary

Problems solved by technology

[0004] At present, the existing multi-chain topology generally adopts an equidistant deployment method, which has the problem of "energy black hole", and some nodes may die early, and the entire network life cycle is greatly affected, and its chains and chains Generally, there is communication interference between them, so the data transmission process is complex and prone to data conflicts and other problems. Therefore, it is necessary to design a multi-chain structure that fully considers network energy balance and inter-chain interference control, and fully considers engineering applications. features, making it more practical

Images