Research on gateway access heterogeneous network based on WSNs node weights
Liang Ma · Transducer and Microsystem Technologies · 2014
In wireless sensor networks( WSNs),although the design of existing gateway node has introduced multiple network fusion transmission mode,but few take into account the performance of the entire gateway node, including throughput,packet loss rate,power consumption,cost overhead and so on,and rare deeply discuss multinetwork selection switching method. Aiming at this situation,introduce the concept of sensor node weights,from the start of different weights sensor nodes need different transmission strategy,for the purpose of data uploading Internet,present a framework of a gateway node access heterogeneous networks. In this framework,considering three aspects including throughput,power consumption and accessing cost,propose a multi-objective optimization model and then give a heuristic approximation algorithm. Experimental results show that under the premise of ensuring reliable data transmission and stable energy consumption in sensor networks,improve efficiency of data transmission and reduce costs of gateway access heterogeneous networks,provide a kind of reliable scheme for gateway to access heterogeneous network for data transmission.