000150306 001__ 150306
000150306 005__ 20251017144548.0
000150306 0247_ $$2doi$$a10.1109/JSAC.2015.2391792
000150306 0248_ $$2sideral$$a102734
000150306 037__ $$aART-2015-102734
000150306 041__ $$aeng
000150306 100__ $$0(orcid)0000-0001-5175-3166$$aFernandez-Bes, Jesus
000150306 245__ $$aAn MDP Model for Censoring in Harvesting Sensors: Optimal and Approximated Solutions
000150306 260__ $$c2015
000150306 5060_ $$aAccess copy available to the general public$$fUnrestricted
000150306 5203_ $$aIn this paper, we propose a novel censoring policy for energy-efficient transmissions in energy-harvesting sensors. The problem is formulated as an infinite-horizon Markov Decision Process (MDP). The objective to be optimized is the expected sum of the importance (utility) of all transmitted messages. Assuming that such importance can be evaluated at the transmitting node, we show that, under certain conditions on the battery model, the optimal censoring policy is a threshold function on the importance value. Specifically, messages are transmitted only if their importance is above a threshold whose value depends on the battery level. Exploiting this property, we propose a model-based stochastic scheme that approximates the optimal solution, with less computational complexity and faster convergence speed than a conventional Q-learning algorithm. Numerical experiments in single-hop and multi-hop networks confirm the analytical advantages of the proposed scheme.
000150306 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000150306 590__ $$a3.672$$b2015
000150306 591__ $$aTELECOMMUNICATIONS$$b4 / 82 = 0.049$$c2015$$dQ1$$eT1
000150306 591__ $$aENGINEERING, ELECTRICAL & ELECTRONIC$$b16 / 255 = 0.063$$c2015$$dQ1$$eT1
000150306 592__ $$a2.092$$b2015
000150306 593__ $$aElectrical and Electronic Engineering$$c2015$$dQ1
000150306 593__ $$aComputer Networks and Communications$$c2015$$dQ1
000150306 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000150306 700__ $$aCid-Sueiro, Jesús
000150306 700__ $$aMarques, Antonio G.
000150306 773__ $$g33, 8 (2015), 1717-1729$$pIEEE j. sel. areas commun.$$tIEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS$$x0733-8716
000150306 8564_ $$s1156266$$uhttps://zaguan.unizar.es/record/150306/files/texto_completo.pdf$$yPostprint
000150306 8564_ $$s3583014$$uhttps://zaguan.unizar.es/record/150306/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000150306 909CO $$ooai:zaguan.unizar.es:150306$$particulos$$pdriver
000150306 951__ $$a2025-10-17-14:10:44
000150306 980__ $$aARTICLE