Antenna Combiner for Periodic Broadcast V2V Communication Under Relaxed Worst-Case Propagation
Artikel i vetenskaplig tidskrift, 2023

The performance of a previously developed analog combining network (ACN) of phase shifters for periodic broadcast vehicle-to-vehicle (V2V) communication is investigated. The original ACN was designed to maximize the sum of signal-to-noise ratios (SNRs) for $K$ consecutive cooperative awareness messages (CAMs). The design was based on the assumption of a dominant propagation path with an angle of arrival (AOA) that is constant for $K$ messages. In this work, we relax this assumption by allowing the AOA and path-loss (PL) of the dominant path to be time-variant. Assuming a highway scenario with a line of sight (LOS) propagation between vehicles, we use affine approximations to model the time variation of different path quantities, including the PL, the relative distance-dependent phase shift between antennas, and the AOA-dependent far-field function of the antennas. By leveraging these approximations, we analytically derive the ACN sum-SNR as each one of these quantities varies over $K$ CAMs. Moreover, we suggest a design rule for a phase slope that is robust against time variation of the dominant path and optimal under time-invariant conditions. Finally, we validate this design rule using numerical computations and an example of vehicular communication antenna elements.

MIMO communication

Antennas

Transmitting antennas

Receiving antennas

Broadcast vehicle-to-vehicle communication

Phase shifters

Directive antennas

multiple antenna systems

Cams

periodic communication

Författare

Chouaib Bencheikh Lehocine

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Erik Ström

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Fredrik Brännström

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

IEEE Transactions on Intelligent Transportation Systems

1524-9050 (ISSN) 1558-0016 (eISSN)

Vol. 24 9 9817-9834

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

DOI

10.1109/TITS.2023.3271589

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Senast uppdaterat

2024-01-11