Exploitation of Dual-Polarization Diversity for 5G Millimeter-Wave MIMO Beamforming Systems

Jo, Ohyun; Kim, Jung‐Ju; Yoon, Jungmin; Choi, Dooseok; Hong, Wonbin

doi:10.1109/tap.2017.2761979

Cited by 87 publications

(34 citation statements)

References 25 publications

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“…For 5G mobile networks, where the transmitter and the receiver may be equipped with antenna arrays that have a massive number of antenna elements, the physical spacing between those elements is crucial. For these networks, in [32] the authors propose a DP MIMO channel model for massive MIMO systems in the context of human-care IoT devices, while in [33], the authors propose a beamforming scheme by exploiting the DP diversity in 5G millimiter wave (mmW) systems. Now, taking into account lower frequencies (VHF and UHF bands), due to the required space separation between the antenna elements in the array (usually, λ c /2, and .…”

Section: B Application Of Dual-polarized Antennasmentioning

confidence: 99%

“…Next, replacing (31) into (32) allows to expand R(t, T, f, F ) which is given by (33). Due to the static characteristics of the CDL model, the only random variables in the terms A, B, C and, D in (33) are the initial random phases Ω VV n,m , ∀(n, m), and the direction of the UE velocity especified by the angle β. Besides that, it is assumed that β and Ω VV n,m are independent.…”

Section: Appendix Amentioning

confidence: 99%

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A CDL-Based Channel Model With Dual-Polarized Antennas for 5G MIMO Systems in Rural Remote Areas

et al. 2020

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In the fifth-generation (5G) mobile networks, it is expected that users experience high throughputs with an ultra-low-latency network, while a massive number of devices are connected to the network. However, in remote rural areas, there is still a large number of people that do not have access to broadband Internet. To overcome this issue, a possible strategy is to exploit the excellent propagation conditions of very high frequency (VHF) and ultra-high frequency (UHF) bands by allowing secondary spectrum reuse in the TV white space (TVWS) channels. But for that, a reliable channel model is required to perform valid coverage and data rate prediction studies. In this paper, a channel model is proposed that takes into account large and small scale fading effects, as well as the particularities of such remote rural areas. The proposed model makes use of measurements along with the clustered delay line (CDL) profiles from 3rd Generation Partnership Project (3GPP). It is a simple model to implement and can be used to provide fast link and system-level simulations. Numerical and analytical results are provided to validate the proposed model and a data rate evaluation is carried out for single-input single-output (SISO) and multiple-input multiple-output (MIMO) configurations, as well as for single-polarized (SP) and dual-polarized (DP) antennas. INDEX TERMS Channel modeling, remote rural areas, CDL, MIMO and dual-polarized antennas.

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Section: B Application Of Dual-polarized Antennasmentioning

confidence: 99%

Section: Appendix Amentioning

confidence: 99%

A CDL-Based Channel Model With Dual-Polarized Antennas for 5G MIMO Systems in Rural Remote Areas

et al. 2020

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“…As a means of exploiting a multi-antenna scheme, antenna polarization is employed, which is quite useful in the mmWave-based vehicular scenario with limited scattering [49], [50]. Accordingly, a dual-polarized 2 × 2 MIMO scheme is employed, where the signals on the vertically polarized and horizontally polarized components are independently transmitted, as seen in Fig.…”

Section: A Doppler-tolerant Physical Layer Structurementioning

confidence: 99%

Realizing Multi-Gbps Vehicular Communication: Design, Implementation, and Validation

et al. 2019

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This paper proposes a vehicular communication system that can achieve multi-Gbps data rate transmission for train and car applications. Employing a millimeter-wave frequency band around 25 GHz, the proposed system provides mobile backhaul connectivity for vehicle user equipments (UEs). In order to support a very high data rate with such a high carrier frequency while guaranteeing sufficient robustness against high mobility-related behaviors such as fast channel variation and unstable handover, we employ a relaying network architecture consisting of a backhaul link to a vehicle UE and an in-vehicle access link. Based on that, we provide a set of fundamental design elements including numerology, frame structure, the reference signal, multi-antenna scheme, and handover. We then validate the proposed vehicular communication system by implementing an experimental testbed consisting of baseband modem, RF front end, an array antenna units, and by performing field trials in an actual subway tunnel and urban road environments. The experimental validation results reveal that providing multi-Gbps backhaul transmission is possible and worthwhile for both train and car scenarios. INDEX TERMS 5G, high mobility, mmWave, testbed, vehicular communications.

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“…Recently, several massive MIMO beamforming systems have been investigated for wireless communication systems [24][25][26], where the MIMO technique and beamforming technique are combined, and are used at both ends of wireless communication systems. The combined designs take full advantage of the two different techniques and can achieve wider transmitting bandwidth, faster data rate, higher antenna gain, and better signal coverage.…”

Section: Introductionmentioning

confidence: 99%

Design of Mimo Beamforming Antenna Array for Mobile Handsets

Li¹,

Geyi²

2019

PIER C

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A new design idea of MIMO beamforming antenna array for compact and thin handheld devices is investigated, where the beamforming function is used for transmitting and the MIMO function for receiving. The new design idea is illustrated by an antenna array consisting of eight printed planar inverted-F elements operating at GSM1900 (1880-1920 MHz) and LTE2300 (2300-2400 MHz). The 8element antenna array is printed on an FR4 substrate of dimensions 136 mm × 68.8 mm × 1 mm. By using the radiation pattern diversity, good isolations, envelope correlation coefficients and mean effective gains are achieved for MIMO receiving. To realize the beamforming function when the antenna is used for transmitting, an optimal feeding mechanism is introduced by the method of maximum power transmission efficiency, which is then implemented by a continuously adjustable feeding circuit board. With the optimized feeding mechanism, the gain of the antenna array in the desired direction can be significantly enhanced. The effects of the human body on the performance of antenna array are also examined, and the results indicate that the proposed design still exhibits good MIMO and beamforming performances in a practical scenario.

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Exploitation of Dual-Polarization Diversity for 5G Millimeter-Wave MIMO Beamforming Systems

Cited by 87 publications

References 25 publications

A CDL-Based Channel Model With Dual-Polarized Antennas for 5G MIMO Systems in Rural Remote Areas

A CDL-Based Channel Model With Dual-Polarized Antennas for 5G MIMO Systems in Rural Remote Areas

Realizing Multi-Gbps Vehicular Communication: Design, Implementation, and Validation

Design of Mimo Beamforming Antenna Array for Mobile Handsets

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