NDLI: Bayesian quickest detection with stochastic energy constraint

Content Provider	IEEE Xplore Digital Library
Author	Jun Geng Lifeng Lai
Copyright Year	2014
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Worcester Polytech. Inst., Worcester, MA, USA (Jun Geng; Lifeng Lai)
Abstract	In this paper, Bayesian quickest change-point detection problem with a stochastic energy constraint is considered. This work is motivated by applications of renewable energy powered wireless sensor networks. In particular, a renewable energy powered wireless sensor is deployed to detect the change in the probability distribution of the observation sequence. The energy in the sensor is consumed by taking observations and is replenished randomly. The sensor cannot store extra energy if its battery is full and cannot take observations if it has no energy left. Hence, the sensor needs to use its energy efficiently. Our goal is to design a power allocation scheme and a detection strategy to minimize the average detection delay while keeping a low false alarm probability. We show that this problem can be written into a set of iteratively defined functions and then solved by the tools from the optimal stopping theory. It turns out that the optimal solution has a very complex structure. For practical applications, we propose a low complexity algorithm, in which the sensor adopts a greedy power allocation scheme with a threshold detection rule. We show that this algorithm is first order asymptotically optimal as the false alarm probability goes to zero.
Sponsorship	IEEE Signal Process. Soc.
Starting Page	1846
Ending Page	1850
File Size	115238
Page Count	5
File Format	PDF
ISBN	9781479928934
DOI	10.1109/ICASSP.2014.6853918
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-05-04
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bayes methods Wireless sensor networks Resource management Wireless communication Batteries Complexity theory Delays sequential detection Bayesian quickest change detection energy harvested sensor stochastic energy constraint
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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