Diversity Antenna for Vehicular Communications in Microwave and mm-Wave Bands

Sohrab, Abed Pour; Karadimas, Petros; Huang, Yingke

doi:10.1109/apwc.2019.8870402

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…However, the deep fading points caused by the tunnel waveguide effect in these works are not suppressed. On the other hand, antenna diversity, which can overcome spatially selective fading and reduce the received power fluctuation in indoor, urban or suburban environments, has been studied by many researchers [17][18][19] . In [20], the effect of polarization diversity on channel capacity in arched tunnels is studied.…”

Section: Introductionmentioning

confidence: 99%

Optimized Scheme of Antenna Diversity for Radio Wave Coverage in Tunnel Environment

et al. 2020

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To suppress the deep fading of radio waves caused by the tunnel waveguide effect, this paper presents an optimized scheme for the spatial and polarization diversities of tunnel antennas. Through the correlation coefficient analysis of path loss curves obtained by antennas placed at different positions, the two antenna positions that generate path loss curves with the lowest correlation coefficient are found, and these two antennas are defined as a diversity antenna pair. Using this scheme, the spatial diversity properties of the transmitting antenna and receiving antenna, as well as the spatial-polarization combined diversity property of the transmitting antenna, are obtained. Furthermore, the impact of antenna polarization on the spatial diversity property is investigated. The performance of the proposed scheme for spatial and polarization diversities is evaluated in terms of the intensity and uniformity of the path loss. The simulation results illustrate that the proposed diversity optimization scheme can suppress the influence of the waveguide effect and achieve more uniform and flatter radio wave coverage in a tunnel environment.

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Section: Introductionmentioning

confidence: 99%

Optimized Scheme of Antenna Diversity for Radio Wave Coverage in Tunnel Environment

et al. 2020

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“…Also, to this end, a number of antenna diversity techniques have been studied with the aim of increasing signal reliability in the context of vehicle-to-vehicle (V2V) and vehicle-toinfrastructure (V2I) communications [14][15][16][17][18][19][20]. In contrast, there are comparatively few results on the use of spatial diversity techniques in the context of P2V communications presented in the open literature [21], [22]. Therefore, in this paper, we examine the potential to improve signal reliability for P2V communications at 5.8 GHz 1 when using a switched combining based DAS mounted on the exterior of an automobile.…”

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confidence: 99%

Evaluation of a Switched Combining Based Distributed Antenna System (DAS) for Pedestrian-to-Vehicle Communications

Yoo

Cotton

Zhang

et al. 2021

IEEE Trans. Veh. Technol.

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The safety of vulnerable road users is paramount, particularly as we move towards the widespread adoption of autonomous and self-driving vehicles. In this study, we investigate the use of a six-element distributed antenna system (DAS), operating at 5.8 GHz and mounted on the exterior (i.e., roof and wing mirrors) of an automobile, to enhance signal reliability for pedestrian-to-vehicle (P2V) communications. Due to its low complexity and ease of implementation, we consider the use of switch-and-examine combining with post-examining selection (SECps) scheme to combine the signal received by the DAS. During our experiments, a pedestrian wearing a wireless device on their chest either stood stationary or walked by the side of a road. It was found that the overall signal reliability depends on not only the number, but also different groupings of the antennas which are selected. The goodness-of-fit results have shown that the temporal behavior of the diversity gain was adequately described by the Gaussian distribution. Building upon this, we also provide some useful insights into the antenna selection through the comparison of three different antenna selection mechanisms, namely per-sample random antenna selection, oneshot antenna selection and per-sample optimal antenna selection.Index Terms-Antenna selection, distributed antenna system, diversity gain, pedestrian-to-vehicle communications, switched combining. I. INTRODUCTIONP EDESTRIAN-to-vehicle (P2V) communications and also the reciprocal vehicle-to-pedestrian (V2P) communications are an important part of the so-called vehicle-toeverything (V2X) communications. These occur when a wireless device(s) situated on a person communicates with wireless devices located on a vehicle [1]. They have gained much attention recently as they will enable direct communications

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Diversity Antenna for Vehicular Communications in Microwave and mm-Wave Bands

Cited by 2 publications

References 6 publications

Optimized Scheme of Antenna Diversity for Radio Wave Coverage in Tunnel Environment

Optimized Scheme of Antenna Diversity for Radio Wave Coverage in Tunnel Environment

Evaluation of a Switched Combining Based Distributed Antenna System (DAS) for Pedestrian-to-Vehicle Communications

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