Joint FMCW Radar and 5G/6G Communications

Markku Kiviranta*, Ilkka Moilanen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

This paper considers how the 5G/6G parameterized communications signal can be integrated into and transmitted through a frequency-modulated continuous wave (FMCW) radar. The joint method can upgrade automotive, airport, harbour, marine, traffic control, etc., radars to relay orthogonal frequency division multiplexing (OFDM)-modulated signals. The 5G/6G communication can be delivered to areas where there is no existing network for them. Transceiver block diagrams and algorithms for a phase-modulated (PM)-OFDM system is provided. The modulation maintains the constant envelope of the FMCW waveform and has an inherent spectral peak for radar estimation. Regarding complexity, there is now no need to remove or compensate for the modulation prior to radar processing in the receiver. Compared to the OFDM, the simulated communications bit error rate (BER) performance degradation is less than 1 dB in both AWGN and Rician fading channels. The results converge and even reverse if the power amplifier efficiency is considered. We show that a common long-range automotive radar distance requirement of 250 m is achieved in terms of range, velocity, and antenna array direction of arrival (DoA) estimation.
Original languageEnglish
Title of host publication2024 IEEE 35th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
PublisherIEEE Institute of Electrical and Electronic Engineers
Pages1-6
Number of pages6
ISBN (Electronic)979-8-3503-6224-4
ISBN (Print)979-8-3503-6225-1
DOIs
Publication statusPublished - 2 Sept 2024
MoE publication typeA4 Article in a conference publication
Event2024 IEEE 35th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) - Valencia, Spain
Duration: 2 Sept 20245 Sept 2024

Conference

Conference2024 IEEE 35th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
Country/TerritorySpain
CityValencia
Period2/09/245/09/24

Funding

The research was partially carried out in the InSecTT project of ECSEL Joint Undertaking with number 876038. The work was also supported by Business Finland through the projects 6GLearn, diary number 8603/31/2022, and the Untangling People Flow, diary number 10926/31/2022.

Keywords

  • 5G
  • 6G
  • wireless communications
  • radar
  • sensing
  • degradation
  • direction of arrival (DoA) estimation
  • OFDM
  • modulation
  • estimation
  • radar antennas
  • automotive engineering
  • antenna arrays
  • receivers

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