Please use this identifier to cite or link to this item: https://doi.org/10.1109/ISIT.2012.6284703
DC FieldValue
dc.titleWireless information transfer with opportunistic energy harvesting
dc.contributor.authorLiu, L.
dc.contributor.authorZhang, R.
dc.contributor.authorChua, K.-C.
dc.date.accessioned2014-06-19T03:32:42Z
dc.date.available2014-06-19T03:32:42Z
dc.date.issued2012
dc.identifier.citationLiu, L., Zhang, R., Chua, K.-C. (2012). Wireless information transfer with opportunistic energy harvesting. IEEE International Symposium on Information Theory - Proceedings : 950-954. ScholarBank@NUS Repository. https://doi.org/10.1109/ISIT.2012.6284703
dc.identifier.isbn9781467325790
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/72211
dc.description.abstractEnergy harvesting is a promising solution to prolong the operation of energy-constrained wireless networks. In particular, scavenging energy from ambient radio signals, namely wireless energy harvesting (WEH), has recently drawn significant attention. In this paper, we consider a point-to-point wireless link over the flat-fading channel subject to the time-varying co-channel interference. It is assumed that the receiver has no fixed power supplies and thus needs to replenish energy via WEH from the unintended interference and/or the intended signal sent by the transmitter. We further assume a single-antenna receiver that can only decode information or harvest energy at any given time due to the practical circuit limitation. As a result, it is important to investigate when the receiver should switch between the two modes of information decoding (ID) and energy harvesting (EH), based on the instantaneous channel and interference conditions. In this paper, we derive the optimal mode switching rule at the receiver to achieve various tradeoffs between the minimum transmission outage probability for ID and the maximum average harvested energy for EH, which are characterized by the boundary of a so-called "outage-energy" region. Moreover, for the case when the channel state information (CSI) is known at the transmitter, we investigate the joint optimization of transmit power control and scheduling for information and energy transfer with the receiver's mode switching. Our results provide useful insights to the optimal design of emerging wireless communication systems powered by opportunistic WEH. © 2012 IEEE.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/ISIT.2012.6284703
dc.sourceScopus
dc.typeConference Paper
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.1109/ISIT.2012.6284703
dc.description.sourcetitleIEEE International Symposium on Information Theory - Proceedings
dc.description.page950-954
dc.description.codenPISTF
dc.identifier.isiutNOT_IN_WOS
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