NDLI: Quality of monitoring of stochastic events by periodic & proportional-share scheduling of sensor coverage

Content Provider	ACM Digital Library
Author	Yau, David K. Y. Yip, Nung Kwan Shankar, Mallikarjun Ma, Chris Y. T. Rao, Nageswara S.
Abstract	We analyze the quality of monitoring (QoM) of stochastic events by a periodic sensor which monitors a point of interest (PoI) for q time every p time. We show how the amount of information captured at a PoI is affected by the proportion q/p, the time interval p over which the proportion is achieved, the event type, and the stochastic event arrival dynamics and staying times. The periodic PoI sensor schedule happens in two broad contexts. In the case of static sensors, a sensor monitoring a PoI may be periodically turned off to conserve energy, thereby extending the lifetime of the monitoring until the sensor can be recharged or replaced. In the case of mobile sensors, a sensor may move between the PoIs in a repeating visit schedule. In this case, the PoIs may vary in importance, and the scheduling objective is to distribute the sensor's coverage time in proportion to the importance levels of the PoIs. Based on our QoM analysis, we optimize a class of periodic mobile coverage schedules that can achieve such proportional sharing while maximizing the QoM of the total system.
Starting Page	1
Ending Page	12
Page Count	12
File Format	PDF
ISBN	9781605582108
DOI	10.1145/1544012.1544038
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2008-12-09
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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Quality of monitoring of stochastic events by periodic & proportional-share scheduling of sensor coverage