Tehnički vjesnik, Vol. 24 No. 3, 2017.
Izvorni znanstveni članak
https://doi.org/10.17559/TV-20160517052746
Coverage strategy for heterogeneous nodes in wireless sensor network based on temporal variability of farmland
Huarui Wu
; Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences Beijing 100097, China
Li Zhu
; Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences Beijing 100097, China
Sažetak
Given temporal variability of farmland, the coverage rate of wireless sensor network (WSN) is usually low. There may arise the problems of blind spot area and congestion of hot spots. We propose a coverage strategy for heterogeneous nodes in WSN based on temporal variability of farmland, which predicts the key nodes using key node prediction model according to temporal variability of farmland environment. Through introduction of renewable energy nodes, the positions of heterogeneous nodes in the network can be determined. The task is re-allocated to the heterogeneous nodes depending on the residual energy of nodes, and the state of nodes in the network is adjusted dynamically. Simulation shows that CSHN can effectively reduce the node death rate and network energy consumption, while prolonging the survival of network and equalizing coverage and network energy consumption.
Ključne riječi
coverage rate; heterogeneous node; network energy consumption; temporal variability of farmland; Wireless Sensor Network (WSN)
Hrčak ID:
183036
URI
Datum izdavanja:
15.6.2017.
Posjeta: 2.135 *