Efficient Joint Channel Equalization and Tracking for V2X Communications Using SC-FDE Schemes
Our aim with this paper is to present a solution suitable for vehicle-to-everything (V2X) communications, particularly, when employing single-carrier modulations combined with frequency-domain equalization (SC-FDE). In fact, we consider the V2X channel to be doubly-selective, where the variation of...
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doaj-3fbb8f8ac91346db9c01b60185b448392021-03-30T01:22:01ZengIEEEIEEE Access2169-35362020-01-018551585516910.1109/ACCESS.2020.29817179040534Efficient Joint Channel Equalization and Tracking for V2X Communications Using SC-FDE SchemesPedro Pedrosa0https://orcid.org/0000-0002-1434-7174Daniel Castanheira1https://orcid.org/0000-0002-3858-2574Adao Silva2https://orcid.org/0000-0002-7008-6773Rui Dinis3https://orcid.org/0000-0002-8520-7267Atilio Gameiro4https://orcid.org/0000-0003-1565-7921Instituto de Telecomunicações, Aveiro, PortugalInstituto de Telecomunicações, Aveiro, PortugalInstituto de Telecomunicações, Aveiro, PortugalInstituto de Telecomunicações, Lisbon, PortugalInstituto de Telecomunicações, Aveiro, PortugalOur aim with this paper is to present a solution suitable for vehicle-to-everything (V2X) communications, particularly, when employing single-carrier modulations combined with frequency-domain equalization (SC-FDE). In fact, we consider the V2X channel to be doubly-selective, where the variation of the channel in time is due to the presence of a Doppler term. Accordingly, the equalization procedure is dealt by a low-complexity iterative frequency-domain equalizer based on the iterative block decision-feedback equalization (IB-DFE) while the tracking procedure is conducted employing an extended Kalman filter (EKF). The proposed system is very efficient since it allows a very low density of training symbols, even for fast-varying channels. Furthermore only two training symbols are required to initialize the tracking procedure. Thus, ensuring low latency together with reduced channel estimation overheads.https://ieeexplore.ieee.org/document/9040534/Adaptive equalizerschannel estimationdigital communicationKalman filterssignal processingsignal processing algorithms |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Pedro Pedrosa Daniel Castanheira Adao Silva Rui Dinis Atilio Gameiro |
spellingShingle |
Pedro Pedrosa Daniel Castanheira Adao Silva Rui Dinis Atilio Gameiro Efficient Joint Channel Equalization and Tracking for V2X Communications Using SC-FDE Schemes IEEE Access Adaptive equalizers channel estimation digital communication Kalman filters signal processing signal processing algorithms |
author_facet |
Pedro Pedrosa Daniel Castanheira Adao Silva Rui Dinis Atilio Gameiro |
author_sort |
Pedro Pedrosa |
title |
Efficient Joint Channel Equalization and Tracking for V2X Communications Using SC-FDE Schemes |
title_short |
Efficient Joint Channel Equalization and Tracking for V2X Communications Using SC-FDE Schemes |
title_full |
Efficient Joint Channel Equalization and Tracking for V2X Communications Using SC-FDE Schemes |
title_fullStr |
Efficient Joint Channel Equalization and Tracking for V2X Communications Using SC-FDE Schemes |
title_full_unstemmed |
Efficient Joint Channel Equalization and Tracking for V2X Communications Using SC-FDE Schemes |
title_sort |
efficient joint channel equalization and tracking for v2x communications using sc-fde schemes |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2020-01-01 |
description |
Our aim with this paper is to present a solution suitable for vehicle-to-everything (V2X) communications, particularly, when employing single-carrier modulations combined with frequency-domain equalization (SC-FDE). In fact, we consider the V2X channel to be doubly-selective, where the variation of the channel in time is due to the presence of a Doppler term. Accordingly, the equalization procedure is dealt by a low-complexity iterative frequency-domain equalizer based on the iterative block decision-feedback equalization (IB-DFE) while the tracking procedure is conducted employing an extended Kalman filter (EKF). The proposed system is very efficient since it allows a very low density of training symbols, even for fast-varying channels. Furthermore only two training symbols are required to initialize the tracking procedure. Thus, ensuring low latency together with reduced channel estimation overheads. |
topic |
Adaptive equalizers channel estimation digital communication Kalman filters signal processing signal processing algorithms |
url |
https://ieeexplore.ieee.org/document/9040534/ |
work_keys_str_mv |
AT pedropedrosa efficientjointchannelequalizationandtrackingforv2xcommunicationsusingscfdeschemes AT danielcastanheira efficientjointchannelequalizationandtrackingforv2xcommunicationsusingscfdeschemes AT adaosilva efficientjointchannelequalizationandtrackingforv2xcommunicationsusingscfdeschemes AT ruidinis efficientjointchannelequalizationandtrackingforv2xcommunicationsusingscfdeschemes AT atiliogameiro efficientjointchannelequalizationandtrackingforv2xcommunicationsusingscfdeschemes |
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