A probabilistic signal-strength-based evaluation methodology for sensor network deployment. (18th November 2005)

• Record Type: Journal Article
• Authors: Kuo, Sheng-Po; Tseng, Yu-Chee; Wu, Fang-Jing; Lin, Chun-Yu
• Is Part Of: International journal of ad hoc and ubiquitous computing. Volume 1:Number 1/2(2005)
• Page Start: 3
• Page End: 12
• Publication Date: 2005-11-18
• Subjects: ad hoc network -- environment monitoring -- pervasive computing -- network deployment -- sensor network -- signal strength; Ubiquitous computing -- Periodicals; Embedded computer systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; Wireless communication systems -- Periodicals; Computer architecture -- Periodicals; 004.2
• Languages: English
• ISSNs: 1743-8225

Abstract

The deployment of sensor networks has attracted a lot of attention recently. In essence this issue is concerned with how well a sensing field is monitored by sensors to achieve a particular coverage. In this paper, we propose a signal-strength-based approach to evaluate how well a sensing field is covered/monitored. We first formulate object tracking by a single sensor as a Gaussian-error model. Then we establish an error model on location estimation, given that the location of an object is known. This leads to a model to evaluate a sensor network with the given locations of sensors. We then apply the result to several applications, such as adding more sensor nodes for error reduction, and scheduling power modes (awake or sleep) of sensors, and demonstrate our simulation results.