Optimized Antenna Array for Improving Performance of 5G mmWave Fixed Wireless Access in Suburban Environment

Bechta, Kamil; Du, Jinfeng; Rybakowski, Marcin

doi:10.1109/5gwf.2019.8911630

Cited by 8 publications

(10 citation statements)

References 3 publications

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“…Since the effective gain (12) depends on the panel geometry (K1; K2), and Bve and Bhe are determined by the antenna element via Ge=2/(BveBhe), the array geometry (K1; K2) can be optimized to maximize the effective beamforming gain G stated in (12)…”

Section: Methods For Antenna Array Optimizationmentioning

confidence: 99%

“…System level simulation results of improved single-user (SU) MIMO performance of mmWave 5G FWA small cells network deployed in a suburban area were presented in [12]. By optimizing antenna array configuration from 8x8 to 16x4 for a given channel angular spread, the DL SINR has been improved by 2 dB, which led to the increase of DL cell capacity by 60% at the cell edge.…”

Section: From Antenna Array Optimization To Improved Link Budgetmentioning

confidence: 99%

“…To demonstrate the significance of using effective antenna pattern in system level simulations of 5G networks a comparison is made of the results obtained using nominal antenna patterns as suggested in 3GPP [10] against the results obtained using effective antenna patterns (with per-UE PAS), for deployment scenarios of urban macro (UMa) and urban micro street canyon (UMi SC) [11] as well as suburban FWA [12]. The focus is put on the cumulative distribution function (CDF) curves for DL SINR obtained in system level simulations with Monte Carlo methodology for stochastic channel model [9] using the simplified method, for both nominal and effective antenna patterns.…”

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confidence: 99%

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Rework the Radio Link Budget for 5G and Beyond

Bechta

Rybakowski

2020

IEEE Access

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The 5 th generation of mobile communication system (5G) enables the use of millimeter wave frequency bands and beamforming with narrow-beam directional antennas for mobile communication. Accurate estimation of radio link budget which enables direct assessment of achievable cell range or maximum throughput and facilitates network parametrization before deployment is one of the most challenging problems in radio network planning. In contrast to traditional cellular systems, where omnidirectional or sectoral antennas are deployed with half-power beam-width much larger than angular spread of the radio channel, the beam-width of antenna arrays assumed for 5G in sub-6GHz and millimeter wave bands can be comparable to or smaller than channel angular spread in scattering environment. Since the effective antenna pattern is determined jointly by the nominal antenna pattern and channel angular spread, it is no longer appropriate to use nominal pattern in radio link budget analysis or system level simulations. Simplified approach, where nominal pattern is assumed for all typical propagation conditions, results in overestimation of the signal power in serving links and underestimation of interference, which in consequence gives erroneous estimation of link budget and leads to unsatisfactory network design and deployment. To avoid inaccurate calculation of link budget while maintaining simplicity it is proposed to modify the simplified approach by using effective antenna patterns. On the other hand, effective antenna pattern can be further optimized by matching its half-power beam-width to the angular spread of the radio channel. It is demonstrated via simulations how to rework the radio link budget for accurate estimation of system performance in high bands for 5G and beyond, along with benefits of effective antenna pattern optimization. INDEX TERMS 5G, angular spread, beamforming, directional antenna, effective antenna pattern, millimeter wave, radio link budget.

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Section: Methods For Antenna Array Optimizationmentioning

confidence: 99%

Section: From Antenna Array Optimization To Improved Link Budgetmentioning

confidence: 99%

mentioning

confidence: 99%

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Rework the Radio Link Budget for 5G and Beyond

Bechta

Rybakowski

2020

IEEE Access

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“…[14] considers beamforming with massive MIMO for achieving wide footprint coverage, control channels and with moderate power consumption. [15] stresses on the importance of MIMO beamforming for an angular spread in suburban radio channels and assess performance in relation to a Cumulative Distribution Function (CDF), path loss, Signal to Interference Noise Ratio (SINR), and antenna gains with different antenna patterns. They report upto 60% cell edge capacity improvements.…”

Section: Related Research Reviewmentioning

confidence: 99%

“…This section uses a set of ITU-proposed 5G FWA key performance indicators to evaluate the proposed design: Reflection coefficient, CDF of EIRP, path loss, throughput, SINR against radiation patterns, and RSSI [3,[10][11][12][13][14][15][16][17][18][19][20][21]. The ITU advises on different sets of key performance indicators depending on the assessment objective and our literature review reveals that this advice has been widely practiced.…”

Section: G Wifiaas Design Evaluationmentioning

confidence: 99%

An enhanced design of a 5G MIMO antenna for fixed wireless aerial access

Almalki

Angelides

2021

Cluster Comput

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A recent market prediction is that 5G Fixed Wireless Access (FWA) will more than double over the next five years and trials at the same period in London suggest promising results. However, the shift to 5G FWA has raised a new set of research challenges in relation to speed of deployment and re-deployment, coverage, power consumption, end user mobility and last mile connectivity, to name just a few, because of the much higher expectations. A recent review reveals that key 5G Physical Layer technologies that will enable wide mobile and FWA have not kept up pace. In response to some of those research challenges, this paper presents the design of a 5G Multiple Input Multiple Output (MIMO) Antenna that is mounted on a tethered aerostat, and the combination of which serves as a 5G FWA aerial station. The antenna design features several novelties and the aerial station can provide last mile connectivity to a wide coverage footprint, with moderate power consumption and operating at high speeds. Both the evaluation of the antenna performance using several key performance indicators and the validation of the aerial station as a 5G FWA in a wireless sensor network (WSN) proof-of-concept application reveal efficiency gains.

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