Outdoor Experimental Trials of Long Range Mobile Communications Using 39 GHz

Benjebbour, Anass; Iwabuchi, Masashi; Kishiyama, Yoshihisa; Wang, Guangjian; Li, Gu; Cui, Yang; Takada, Terufumi

doi:10.1109/vtcspring.2018.8417821

Cited by 11 publications

(9 citation statements)

References 3 publications

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“…Moreover, in the EHF band, NTT DOCOMO has verified the potential of millimeter-wave analog BF technology using a lens antenna in 39 GHz-band with Huawei [41] and 70 GHz band with Nokia [42], respectively.…”

Section: Overview Of Recent 5g Experimental Trialsmentioning

confidence: 95%

Recent Activities of 5G Experimental Trials on Massive MIMO Technologies and 5G System Trials Toward New Services Creation

Okumura

Suyama

Mashino

et al. 2019

IEICE Trans. Commun.

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In order to cope with recent growth of mobile data traffic and emerging various services, world-wide system trials for the fifthgeneration (5G) mobile communication system that dramatically extends capability of the fourth-generation mobile communication system are being performed to launch its commercial service in 2020. In addition, research and development of new radio access technologies for 5G evolution and beyond 5G systems are beginning to be made all over the world. This paper introduces our recent activities on 5G transmission experiments that aim to validate Massive MIMO technologies using higher frequency bands such as SHF/EHF bands, that is, 5G experimental trials. Recent results of 5G system trials to create new services and applications in 5G era in cooperation with partners in vertical industries are also introduced.

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Section: Overview Of Recent 5g Experimental Trialsmentioning

confidence: 95%

Recent Activities of 5G Experimental Trials on Massive MIMO Technologies and 5G System Trials Toward New Services Creation

Okumura

Suyama

Mashino

et al. 2019

IEICE Trans. Commun.

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“…(4) For the first time, we derive the distribution of the product-distance in an SG-based network with HPPP distributed BSs and buildings. (5) We draw large-scale system insights from our numerical results. We show that there is an IRS deployment ratio beyond which equipping additional IRSs on blockages results in little coverage probability improvement.…”

Section: B Contributionsmentioning

confidence: 99%

“…To test this statement, some studies conducted field measurements that aim to measure the maximum distance of LoS links at high frequency by using beamforming. In [5], the authors claim that they achieved 2.148 Gbps of throughput at 1.8 km and at 39 GHz of operating frequency when the user equipment (UE) is stationary. In [4], 1.7 km of a range is achieved at 39 GHz in the LoS scenario; however, it is pointed out that there are some coverage holes in non-line-of-sight (NLoS) locations.…”

Section: Introductionmentioning

confidence: 99%

Coverage Analysis of IRS-Aided Millimeter-Wave Networks: A Practical Approach

Etcibasi¹,

Aktas²

2023

Preprint

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<p>Intelligent reflecting surfaces (IRSs) have become a popular topic in recent years for their great potential for controlling the radio link environment of wireless networks. With this controlled environment, the coverage can be increased. In this paper, unlike the other works related to the IRS-aided coverage analysis, both two-dimensional buildings and the product-distance path loss model are considered for the indirect link for the first time. Leveraging the tools from stochastic geometry, the locations of base stations (BSs), buildings, and IRSs are modeled with a homogeneous Poisson point process (PPP). Then, a Gamma approximation for the distribution of the nearest-LoS-neighbor distance is proposed for analytical tractability. With the proposed approximation, a closed-form expression for the distribution of the product-distance is derived. A method to obtain the ratio of feasible BSs which indicates whether a BS is reachable with an IRS depending on the facade of the building it is deployed is proposed. Simulations are performed which confirm the proposed analytical methods. In the numerical results, it is observed that the IRSs can introduce up to a 45\% coverage boost, and the effect of the IRS length on the coverage probability is limited beyond 1.2 meters at 60 GHz.</p>

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“…However, to extend the communication distance, several advanced solutions, e.g., distance-adaptive design at physical layer, ultra-massive MIMO, reflectarrays, and HyperSurfaces, have been proposed with the improved transmission distance up to 100 m in both LOS and NLOS areas at 60 GHz [98]. Recent field trial jointly carried out by Huawei and NTT DoCoMo has further attained the long-distance transmission with 5G high data speed at 39 GHz in both stationary and mobility scenarios [99]. In addition, the path loss of mmWave NLOS links is more larger than the free space path loss of mmWave unobstructed LOS links.…”

Section: A: Free Space Path Lossmentioning

confidence: 99%

A Survey on 5G Millimeter Wave Communications for UAV-Assisted Wireless Networks

et al. 2019

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In recent years, unmanned aerial vehicles (UAVs) have received considerable attention from regulators, industry and research community, due to rapid growth in a broad range of applications. Particularly, UAVs are being used to provide a promising solution to reliable and cost-effective wireless communications from the sky. The deployment of UAVs has been regarded as an alternative complement of existing cellular systems, to achieve higher transmission efficiency with enhanced coverage and capacity. However, heavily utilized microwave spectrum bands below 6 GHz utilized by legacy wireless systems are insufficient to attain remarkable data rate enhancement for numerous emerging applications. To resolve the spectrum crunch crisis and satisfy the requirements of 5G and beyond mobile communications, one potential solution is to use the abundance of unoccupied bandwidth available at millimeter wave (mmWave) frequencies. Inspired by the technique potentials, mmWave communications have also paved the way into the widespread use of UAVs to assist wireless networks for future 5G and beyond wireless applications. In this paper, we provide a comprehensive survey on current achievements in the integration of 5G mmWave communications into UAV-assisted wireless networks. More precisely, a taxonomy to classify the existing research issues is presented, by considering seven cutting-edge solutions. Subsequently, we provide a brief overview of 5G mmWave communications for UAV-assisted wireless networks from two aspects, i.e., key technical advantages and challenges as well as potential applications. Based on the proposed taxonomy, we further discuss in detail the state-of-the-art issues, solutions, and open challenges for this newly emerging area. Lastly, we complete this survey by pointing out open issues and shedding new light on future directions for further research on this area. INDEX TERMSMillimeter wave (mmWave) communications, unmanned aerial vehicle (UAV), mmWave UAV communications, UAV-assisted wireless networks, 5G and beyond.HAITAO XU received the B.E. degree in communication engineering from Sun Yat-sen University, Guangzhou, China, in 2007, the M.E. degree in communication system and signal processing from the University of Bristol, U.K., in 2009, and the Ph.D. degree in communication and information systems from the

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Outdoor Experimental Trials of Long Range Mobile Communications Using 39 GHz

Cited by 11 publications

References 3 publications

Recent Activities of 5G Experimental Trials on Massive MIMO Technologies and 5G System Trials Toward New Services Creation

Recent Activities of 5G Experimental Trials on Massive MIMO Technologies and 5G System Trials Toward New Services Creation

Coverage Analysis of IRS-Aided Millimeter-Wave Networks: A Practical Approach

A Survey on 5G Millimeter Wave Communications for UAV-Assisted Wireless Networks

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