Measurement-based angular characterization for 72 GHz propagation channels in indoor environments

Zhang, Nan; Yin, Xuefeng; Lu, Stan X.; Du, Mingde; Cai, Xuesong

doi:10.1109/glocomw.2014.7063459

Cited by 24 publications

(12 citation statements)

References 13 publications

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“…Several channel measurements have been conducted at some mmWave bands such as 6,10,11,15,18,19,26,28,32, and 38 GHz bands. In [11], the propagation characteristics of mmWaves were investigated in an indoor corridor environment for the line of sight (LOS) scenario at 6.5, 10.5, 15, 19, 28, and 38 GHz bands.…”

Section: Introductionmentioning

confidence: 99%

“…Three large-scale propagation path loss models for use over the entire microwave and mmWave radio spectrum, namely, the alpha-beta-gamma (ABG) model, the close-in (CI) free space reference distance model, and the CI model with a frequency-weighted path loss exponent (CIF), were studied and compared for the bands from 2 to 73 GHz with different frequency bands [13]. Moreover, indoor measurements for wireless and backhaul communications have been conducted in the frequency band of 72 GHz [17,18]. At Finland's Aalto University, mmWave measurements have been conducted in the 60 GHz and 70 GHz frequency bands [19,20].…”

Section: Introductionmentioning

confidence: 99%

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Indoor Corridor Wideband Radio Propagation Measurements and Channel Models for 5G Millimeter Wave Wireless Communications at 19 GHz, 28 GHz, and 38 GHz Bands

Al-Samman

Rahman

Azmi

2018

Wireless Communications and Mobile Computing

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This paper presents millimeter wave (mmWave) measurements in an indoor environment. The high demands for the future applications in the 5G system require more capacity. In the microwave band below 6 GHz, most of the available bands are occupied; hence, the microwave band above 6 GHz and mmWave band can be used for the 5G system to cover the bandwidth required for all 5G applications. In this paper, the propagation characteristics at three different bands above 6 GHz (19, 28, and 38 GHz) are investigated in an indoor corridor environment for line of sight (LOS) and non-LOS (NLOS) scenarios. Five different path loss models are studied for this environment, namely, close-in (CI) free space path loss, floating-intercept (FI), frequency attenuation (FA) path loss, alpha-beta-gamma (ABG), and close-in free space reference distance with frequency weighting (CIF) models. Important statistical properties, such as power delay profile (PDP), root mean square (RMS) delay spread, and azimuth angle spread, are obtained and compared for different bands. The results for the path loss model found that the path loss exponent (PLE) and line slope values for all models are less than the free space path loss exponent of 2. The RMS delay spread for all bands is low for the LOS scenario, and only the directed path is contributed in some spatial locations. For the NLOS scenario, the angle of arrival (AOA) is extensively investigated, and the results indicated that the channel propagation for 5G using high directional antenna should be used in the beamforming technique to receive the signal and collect all multipath components from different angles in a particular mobile location.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Indoor Corridor Wideband Radio Propagation Measurements and Channel Models for 5G Millimeter Wave Wireless Communications at 19 GHz, 28 GHz, and 38 GHz Bands

Al-Samman

Rahman

Azmi

2018

Wireless Communications and Mobile Computing

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“…where 'L' is the total number of angular positions: 'ϕ i ' is the corresponding angle, in radians and 'μ ∅ ' is the mean azimuthal arrival direction given in (4) [15,16]:…”

Section: Angular Spreadmentioning

confidence: 99%

Indoor dual polarised radio channel characterisation in the 54 and 70 GHz bands

Raimundo¹,

Salous²,

Cheema³

2018

IET Microwaves, Antennas & Propagation

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In this paper, results of wideband dual polarised measurements conducted in indoor environments including office, factory, corridor and computer foyer, using state the art 2 by 2 multiple input multiple output (MIMO) Frequency Modulated Continuous Wave (FMCW) based channel sounder, are presented. The measurements were performed in two frequency bands with 6 GHz bandwidth, centred at 54 GHz and 70 GHz, with directional steerable ~20 dBi (18 degrees beamwidth) horn antennas. Using twists at the transmitter and at the receiver simultaneous co-polar and cross-polar measurements were performed to quantify the polarization effects on channel parameters such as angular spread, delay spread and path loss. The results show that the co-polarized radio links experienced lower angular spread and delay spread compared with the cross polarized links. For co-polarized links, the estimated synthesized omnidirectional path loss exponent was found to be in the range of 1.5-2 (close-in model) and 0.9-1.9 (log-distance model) in the respective environments. In individual scenarios, the median cross polarization ratio was found to be within 11.7-14.4 dB and 7.5-17.6 dB at 54 GHz and 70 GHz, respectively.

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“…The propagation mechanisms of indoor environment channels have been worked in frequency bands above 6 GHz in recent years, such as 10 to 11 GHz, [4][5][6] 28 GHz, [1][2][3][4][5][6][7][8][9][10][11][12] 60 GHz, 13,14 and 70 to 73 GHz. 11,14,15 Similarly, in the frequency bands above 6 GHz such as 10,18,28,38,60,72, and 81 to 86 GHz, [16][17][18][19][20] measurement campaigns have been performed for the outdoor urban cellular network. Modeling and measurement studies have been carried out in the mmWave band related to 5G communication in worldwide by various standardization organizations (eg, 3GPP, 21 MiWEBA, 22 mmMAGIC, 23 METIS 1 ) and academic research groups (eg, NYU WIRE-LESS 11 ).…”

Section: Introductionmentioning

confidence: 99%

Millimeter‐wave propagation modeling and characterization at 32 GHz in indoor office for 5G networks

Şeker

Guneser

Arslan

2020

Int J RF Microw Comput Aided Eng

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Since it has a great bandwidth that supports gigabit communication, it is considered to use the millimeter-wave (mmWave) band in the fifth generation (5G) wireless communication. Therefore, an efficient, reliable, and accurate channel model is of vital importance in mmWave bands for indoor environments, especially in the 31.8 to 33.4 GHz band allocated by ITU for 5G communications. In this article, we performed modeling and characterization campaign at the 32 GHz in a typical indoor office environment on fourth floor of the Engineering Faculty in University of Karabuk, Turkey. The obtained results provide large-scale fadings such as path loss, shadowing, root mean square (RMS) delay spread, RMS angular spread, power angular spectrum, number of clusters, and Ricean K-factor in an open-plan indoor environment. Power angular spectrum is used to comprehend the propagation structure. We propose that the results obtained in this study will play a key role in simulating and planning systems at 32 GHz for 5G wireless communication.

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Measurement-based angular characterization for 72 GHz propagation channels in indoor environments

Cited by 24 publications

References 13 publications

Indoor Corridor Wideband Radio Propagation Measurements and Channel Models for 5G Millimeter Wave Wireless Communications at 19 GHz, 28 GHz, and 38 GHz Bands

Indoor Corridor Wideband Radio Propagation Measurements and Channel Models for 5G Millimeter Wave Wireless Communications at 19 GHz, 28 GHz, and 38 GHz Bands

Indoor dual polarised radio channel characterisation in the 54 and 70 GHz bands

Millimeter‐wave propagation modeling and characterization at 32 GHz in indoor office for 5G networks

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