Line-of-sight and non-line-of-sight links for dispersive terahertz wireless networks

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dc.citation.articleNumber41304
dc.citation.issueNumber4
dc.citation.journalTitleAPL Photonics
dc.citation.volumeNumber6
dc.contributor.authorGhasempour, Yasaman
dc.contributor.authorAmarasinghe, Yasith
dc.contributor.authorYeh, Chia-Yi
dc.contributor.authorKnightly, Edward
dc.contributor.authorMittleman, Daniel M.
dc.date.accessioned2021-06-07T20:22:24Z
dc.date.available2021-06-07T20:22:24Z
dc.date.issued2021
dc.description.abstractDespite the rapidly growing interest in exploiting millimeter and terahertz waves for wireless data transfer, the role of reflected non-line-of-sight (NLOS) paths in wireless networking is one of the least explored questions. In this paper, we investigate the idea of harnessing these specular NLOS paths for communication in directional networks at frequencies above 100 GHz. We explore several illustrative transmitter architectures, namely, a conventional substrate-lens dipole antenna and a leaky-wave antenna. We investigate how these high-gain directional antennas offer both new challenges and new opportunities for exploiting NLOS paths. Our results demonstrate the sensitivity to antenna alignment, power spectrum variations, and the disparity in supported bandwidth of various line-of-sight (LOS) and reflected path configurations. We show that NLOS paths can, under certain circumstances, offer even higher data rates than the conventional LOS path. This result illustrates the unique opportunities that distinguish THz wireless systems from those that operate at lower frequencies.
dc.identifier.citationGhasempour, Yasaman, Amarasinghe, Yasith, Yeh, Chia-Yi, et al.. "Line-of-sight and non-line-of-sight links for dispersive terahertz wireless networks." <i>APL Photonics,</i> 6, no. 4 (2021) AIP Publishing LLC: https://doi.org/10.1063/5.0039262.
dc.identifier.digital5-0039262
dc.identifier.doihttps://doi.org/10.1063/5.0039262
dc.identifier.urihttps://hdl.handle.net/1911/110669
dc.language.isoeng
dc.publisherAIP Publishing LLC
dc.rightsAll article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleLine-of-sight and non-line-of-sight links for dispersive terahertz wireless networks
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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