Performance Evaluation of 5G Waveforms for Joint Radar Communication over 77 GHz and 24 GHz ISM Bands

Imane Khelouani, Fouzia Elbahhar, Raja Elassali and Noureddine Idboufker
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Imane Khelouani: SSA, ENSA, University of Cadi Ayyad, Marrakech 40000, Morocco
Fouzia Elbahhar: COSYS-LEOST, University Gustave Eiffel, F-59650 Villeneuve d’Ascq, France
Raja Elassali: SSA, ENSA, University of Cadi Ayyad, Marrakech 40000, Morocco
Noureddine Idboufker: SSA, ENSA, University of Cadi Ayyad, Marrakech 40000, Morocco

Energies, 2022, vol. 15, issue 6, 1-13

Abstract: The V2X environment poses many challenges to emerging wireless communication systems, while it is crucial to ensure the efficiency and safety of road users. Requiring continual localization of the surroundings and accurate obstacle detection while providing high reliability in dense networks and low latency in high-mobility environment communication systems imposes a challenge to the driver-assistance field given that we are overly limited in terms of frequency bands and resources. Hence, pooling of the available frequency resources between different applications can help increase the spectral efficiency. A new collaborative approach multiplexed in the time domain, namely RadCom, which can be described as a joint radar and communication system that performs both vehicle-to-everything communication and detection of the neighboring obstacles in the vehicular environment, has been proposed to overcome the limitations of the existing conventional radar system. Based on orthogonal frequency division multiplexing (OFDM), this RadCom system proved to be suitable up to now for V2X. Moreover, a new RadCom system based on universal frequency multi-carrier (UFMC), an advanced fifth-generation (5G) waveform, has been proposed to enhance the spectral efficiency and surmount the shortcomings induced by the OFDM waveform. This recent RadCom system has been studied in the new frequency range of 76–81 GHz; precisely, 77 GHz. Hence, in this paper, we propose to compare both subsystems of the proposed RadCom system over two different frequency carriers, 24 GHz and 77 GHz, and to adopt the proper system parametrization in order to meet appropriate wireless solutions for automotive RadCom systems.

Keywords: OFDM RadCom; UFMC RadCom; 5G; spectral efficiency; 77 GHz; 24 GHz (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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