{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T16:29:04Z","timestamp":1774024144553,"version":"3.50.1"},"reference-count":43,"publisher":"Institution of Engineering and Technology (IET)","issue":"7","license":[{"start":{"date-parts":[[2022,4,25]],"date-time":"2022-04-25T00:00:00Z","timestamp":1650844800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000266","name":"Engineering and Physical Sciences Research Council","doi-asserted-by":"publisher","award":["EP\/S000631\/1"],"award-info":[{"award-number":["EP\/S000631\/1"]}],"id":[{"id":"10.13039\/501100000266","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["ietresearch.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["IET Signal Processing"],"published-print":{"date-parts":[[2022,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The joint radar\u2010communication (JRC) system is envisioned as an emerging sixth generation (6G) technology to tackle spectral congestion and hardware limitations by jointly implementing the communication and radar sensing on the same hardware platform and using the common radio frequency (RF) resources. Joint radar\u2010communication systems with a multi\u2010antenna setup leads to higher degrees of freedom, and hybrid beamforming can be exploited to achieve lower hardware complexity than conventional fully digital systems. This paper aims to design a spectral efficiency maximisation approach for a 6G inclined JRC system with hybrid beamforming and multi\u2010antenna setup while considering the interference between communication and radar operations and hardware impairments in the system. The rate expressions for communication and radar operations are defined, and the joint spectral efficiency is maximised via optimising the number of RF chains using an efficient selection algorithm taking into account the interference of one operation to the other and system hardware distortion. The simulation results are shown to support the effectiveness of the proposed approach, and they are compared with that of existing fully digital and hybrid beamforming based baseline methods with fixed number of RF chains. The proposed approach also exhibits a desirable communication\u2010radar trade\u2010off in terms of spectral efficiency gains.<\/jats:p>","DOI":"10.1049\/sil2.12131","type":"journal-article","created":{"date-parts":[[2022,4,25]],"date-time":"2022-04-25T06:04:05Z","timestamp":1650866645000},"page":"851-863","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":33,"title":["Towards 6G: Spectrally efficient joint radar and communication with radio frequency selection, interference and hardware impairments (invited paper)"],"prefix":"10.1049","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6252-4641","authenticated-orcid":false,"given":"Aryan","family":"Kaushik","sequence":"first","affiliation":[{"name":"6G Lab School of Engineering and Informatics University of Sussex  Brighton UK"}]},{"given":"Evangelos","family":"Vlachos","sequence":"additional","affiliation":[{"name":"Industrial Systems Institute Athena Research and Innovation Centre  Marousi Greece"}]},{"given":"John","family":"Thompson","sequence":"additional","affiliation":[{"name":"Institute for Digital Communications The University of Edinburgh  Edinburgh UK"}]},{"given":"Maziar","family":"Nekovee","sequence":"additional","affiliation":[{"name":"6G Lab School of Engineering and Informatics University of Sussex  Brighton UK"}]},{"given":"Fraser","family":"Coutts","sequence":"additional","affiliation":[{"name":"Institute for Digital Communications The University of Edinburgh  Edinburgh UK"}]}],"member":"265","published-online":{"date-parts":[[2022,4,25]]},"reference":[{"key":"e_1_2_9_2_1","unstructured":"Cisco annual internet report 2018\u201023 white paper. 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