Open AccessCSI‐based low‐duty‐cycle wireless multimedia sensor network for security monitoring
Author(s) -
Yang Xu,
Chen Pengpeng,
Gao Shouwan,
Niu Qiang
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2017.2515
Subject(s) - computer science , duty cycle , wireless sensor network , energy consumption , wireless , real time computing , channel (broadcasting) , energy (signal processing) , computer network , telecommunications , engineering , voltage , electrical engineering , statistics , mathematics
Wireless multimedia sensor networks (WMSNs) have been proposed for use in many challenging applications, such as military surveillance, wildlife tracking, and security monitoring. Reducing energy and storage space consumption are challenging in WMSNs. To address this issue, the authors propose a novel low‐duty‐cycle WMSN (LWMSN) based on Wi‐Fi. This special WMSN is especially suitable for security monitoring, which involves long invalid times in which humans do not appear in the target area. The LWMSN can be intelligently switched on and off by human detection based on channel state information provided by Wi‐Fi products. The authors evaluated their design with a simulation and an experiment. Results show that the accuracy of human detection can be >97% on average. In addition, energy and storage space consumption are reduced by 53 and 40%, respectively.