Bounds on Minimum Energy per Bit for Optical Wireless Relay Channels

dc.contributor.authorRaza, A. D.
dc.contributor.authorMuhammad, S. Sheikh
dc.coverage.issue3cs
dc.coverage.volume23cs
dc.date.accessioned2014-12-11T12:08:58Z
dc.date.available2014-12-11T12:08:58Z
dc.date.issued2014-09cs
dc.description.abstractAn optical wireless relay channel (OWRC) is the classical three node network consisting of source, re- lay and destination nodes with optical wireless connectivity. The channel law is assumed Gaussian. This paper studies the bounds on minimum energy per bit required for reliable communication over an OWRC. It is shown that capacity of an OWRC is concave and energy per bit is monotonically increasing in square of the peak optical signal power, and consequently the minimum energy per bit is inversely pro- portional to the square root of asymptotic capacity at low signal to noise ratio. This has been used to develop upper and lower bound on energy per bit as a function of peak signal power, mean to peak power ratio, and variance of channel noise. The upper and lower bounds on minimum energy per bit derived in this paper correspond respectively to the decode and forward lower bound and the min-max cut upper bound on OWRC capacityen
dc.formattextcs
dc.format.extent761-767cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2014, vol. 23, č. 3, s. 761-767. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/36476
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2014/14_03_0761_0767.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectOptical wireless (OW)en
dc.subjectnetwork information theory (NIT)en
dc.subjectoptical wireless relay channel (OWRC)en
dc.subjectchannel capacityen
dc.subjectenergy per bit Eben
dc.titleBounds on Minimum Energy per Bit for Optical Wireless Relay Channelsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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