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논문 기본 정보

자료유형
학술저널
저자정보
Sang-Seon Byun (Catholic University of Pusan)
저널정보
한국정보통신학회JICCE Journal of information and communication convergence engineering Journal of information and communication convergence engineering Vol.16 No.1
발행연도
2018.3
수록면
38 - 42 (5page)

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In this paper, we consider measurement allocation problem in a spatially correlated sensor field. Our goal is to determine the probability of each sensor’s being measured based on its contribution to the estimation reliability; it is desirable that a sensor improving the estimation reliability is measured more frequently. We consider a spatial correlation model of a sensor field reflecting transmission power limit, noise in measurement and transmission channel, and channel attenuation. Then the estimation reliability is defined distortion error between event source and its estimation at sink. Motivated by the correlation nature, we model the measurement allocation problem into a cooperative game, and then quantify each sensor’s contribution using Shapley value. Against the intractability in the computation of exact Shapley value, we deploy a randomized method that enables to compute the approximate Shapley value within a reasonable time. Besides, we envisage a measurement scheduling achieving the balance between network lifetime and estimation reliability.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. SYSTEM MODEL AND METHODS
Ⅲ. MEASUREMENT ALLOCATION GAME
Ⅳ. RANDOMIZED METHOD
Ⅴ. NUMERICAL EVALUATION
Ⅵ. CONCLUSION
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