Effective PSCCH Searching for 5G-NR V2X Sidelink Communications

Cooperative Intelligent Transport Systems (C-ITS) are essential for increasing road safety and to make road transport more efficient, sustainable, and environmentally friendly. The implementation of C-ITS technology is only possible through the connectivity of Vehicle-to-Everything (V2X), which allo...

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Autores principales:	Roberto Magueta, João Domingues, Adão Silva, Paulo Marques
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	V2X sidelink 3GPP 5G-NR PSCCH real-time systems Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/a1b1627faac74ac899f00d9518177636
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spelling	oai:doaj.org-article:a1b1627faac74ac899f00d95181776362021-11-25T17:25:01ZEffective PSCCH Searching for 5G-NR V2X Sidelink Communications10.3390/electronics102228272079-9292https://doaj.org/article/a1b1627faac74ac899f00d95181776362021-11-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/22/2827https://doaj.org/toc/2079-9292Cooperative Intelligent Transport Systems (C-ITS) are essential for increasing road safety and to make road transport more efficient, sustainable, and environmentally friendly. The implementation of C-ITS technology is only possible through the connectivity of Vehicle-to-Everything (V2X), which allows the interconnection of vehicles in a network and with road support infrastructure. However, real-time systems require efficient signal processing in order to respond within the necessary time. Some of this processing is related to searching the Physical Sidelink Control Channel (PSCCH), where a blind algorithm is commonly used. However, this algorithm is quite inefficient to searching the PSCCH, since all the processing should be completed several times before successful decoding it. Therefore, the aim of this paper is to design a more efficient algorithm to search/decode the PSCCH. In the proposed algorithm, we firstly compute all the correlations between the received signal and the Demodulation Reference Signal (DMRS), and the remaining conventional processing to decode the PSCCH is only performed over the subchannels with higher correlation, which leads to a strong complexity reduction. The proposed algorithm is evaluated and compared with the conventional blind algorithm. The results have shown a significant performance improvement in terms of runtime.Roberto MaguetaJoão DominguesAdão SilvaPaulo MarquesMDPI AGarticleV2Xsidelink3GPP5G-NRPSCCHreal-time systemsElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2827, p 2827 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	V2X sidelink 3GPP 5G-NR PSCCH real-time systems Electronics TK7800-8360
spellingShingle	V2X sidelink 3GPP 5G-NR PSCCH real-time systems Electronics TK7800-8360 Roberto Magueta João Domingues Adão Silva Paulo Marques Effective PSCCH Searching for 5G-NR V2X Sidelink Communications
description	Cooperative Intelligent Transport Systems (C-ITS) are essential for increasing road safety and to make road transport more efficient, sustainable, and environmentally friendly. The implementation of C-ITS technology is only possible through the connectivity of Vehicle-to-Everything (V2X), which allows the interconnection of vehicles in a network and with road support infrastructure. However, real-time systems require efficient signal processing in order to respond within the necessary time. Some of this processing is related to searching the Physical Sidelink Control Channel (PSCCH), where a blind algorithm is commonly used. However, this algorithm is quite inefficient to searching the PSCCH, since all the processing should be completed several times before successful decoding it. Therefore, the aim of this paper is to design a more efficient algorithm to search/decode the PSCCH. In the proposed algorithm, we firstly compute all the correlations between the received signal and the Demodulation Reference Signal (DMRS), and the remaining conventional processing to decode the PSCCH is only performed over the subchannels with higher correlation, which leads to a strong complexity reduction. The proposed algorithm is evaluated and compared with the conventional blind algorithm. The results have shown a significant performance improvement in terms of runtime.
format	article
author	Roberto Magueta João Domingues Adão Silva Paulo Marques
author_facet	Roberto Magueta João Domingues Adão Silva Paulo Marques
author_sort	Roberto Magueta
title	Effective PSCCH Searching for 5G-NR V2X Sidelink Communications
title_short	Effective PSCCH Searching for 5G-NR V2X Sidelink Communications
title_full	Effective PSCCH Searching for 5G-NR V2X Sidelink Communications
title_fullStr	Effective PSCCH Searching for 5G-NR V2X Sidelink Communications
title_full_unstemmed	Effective PSCCH Searching for 5G-NR V2X Sidelink Communications
title_sort	effective pscch searching for 5g-nr v2x sidelink communications
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a1b1627faac74ac899f00d9518177636
work_keys_str_mv	AT robertomagueta effectivepscchsearchingfor5gnrv2xsidelinkcommunications AT joaodomingues effectivepscchsearchingfor5gnrv2xsidelinkcommunications AT adaosilva effectivepscchsearchingfor5gnrv2xsidelinkcommunications AT paulomarques effectivepscchsearchingfor5gnrv2xsidelinkcommunications
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Effective PSCCH Searching for 5G-NR V2X Sidelink Communications

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