Site specific analysis on mm-Wave radio propagation in commercial small urban

Yoon, Youngbin; Kim, Jong‐Ho; Chong, Young‐Jun; Hu, Hong

doi:10.1109/ictc.2015.7354804

Cited by 2 publications

(7 citation statements)

References 11 publications

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“…In Fig. 6 the received power (red) is compared to the DKED antenna gain (DKED-AG) model (green) (12), in addition to showing the constructive (signals inphase) and destructive (signals out of phase) sum of received signals of the upper (blue) and lower (black) bound of the fade envelope, respectively. Fig.…”

Section: E Human Blockage Results and Analysismentioning

confidence: 99%

“…It was previously demonstrated that diffraction loss models that do not account for antenna gain pattern can severely underestimate the diffraction loss when the blocker is close to either antenna (a critical issue for mobile phone use) [38]. The DKED-AG model (12) accurately predicts what is measured, and predicts the deepest attenuation caused by a human blocker in excess of 40 dB. To model multiple blockers, the screen model can be replicated multiple times.…”

Section: E Human Blockage Results and Analysismentioning

confidence: 99%

“…The DKED-AG model in (12) may be extended [51] to consider the top and bottom screen edges, phase corrections, and nonperpendicular screen orientations, although the simple model (12) matches the human blocking measurements with confidence. It can be seen in Fig.…”

Section: E Human Blockage Results and Analysismentioning

confidence: 99%

“…The worst case scenario (maximum diffraction loss) is found by taking the difference of the magnitudes of received signals from the w1 and w2 edges, and is represented by the black dotted line in Fig 6, where (12) is computed as:…”

Section: E Human Blockage Results and Analysismentioning

confidence: 99%

“…These results show that adaptive antenna array and beamforming techniques will be employed to find suitable reflectors and scatterers in the signal transmission to overcome severe blockage attenuation in future 5G communication systems. The DKED-AG model in ( 12) may be extended [51] to consider the top and bottom screen edges, phase corrections, and nonperpendicular screen orientations, although the simple model (12) matches the human blocking measurements with confidence. It can be seen in Fig.…”

Section: E Human Blockage Results and Analysismentioning

confidence: 99%

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Small-Scale, Local Area, and Transitional Millimeter Wave Propagation for 5G Communications

Rappaport

MacCartney

Sun

et al. 2017

IEEE Trans. Antennas Propagat.

144

121

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This paper studies radio propagation mechanisms that impact handoffs, air interface design, beam steering, and MIMO for 5G mobile communication systems. Knife edge diffraction (KED) and a creeping wave linear model are shown to predict diffraction loss around typical building objects from 10 to 26 GHz, and human blockage measurements at 73 GHz are shown to fit a double knifeedge diffraction (DKED) model which incorporates antenna gains. Small-scale spatial fading of millimeter wave received signal voltage amplitude is generally Ricean-distributed for both omnidirectional and directional receive antenna patterns under both line-of-sight (LOS) and non-line-of-sight (NLOS) conditions in most cases, although the log-normal distribution fits measured data better for the omnidirectional receive antenna pattern in the NLOS environment. Small-scale spatial autocorrelations of received voltage amplitudes are shown to fit sinusoidal exponential and exponential functions for LOS and NLOS environments, respectively, with small decorrelation distances of 0.27 cm to 13.6 cm (smaller than the size of a handset) that are favorable for spatial multiplexing. Local area measurements using cluster and route scenarios show how the received signal changes as the mobile moves and transitions from LOS to NLOS locations, with reasonably stationary signal levels within clusters. Wideband mmWave power levels are shown to fade from 0.4 dB/ms to 40 dB/s, depending on travel speed and surroundings.

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Section: E Human Blockage Results and Analysismentioning

confidence: 99%

Section: E Human Blockage Results and Analysismentioning

confidence: 99%

Section: E Human Blockage Results and Analysismentioning

confidence: 99%

Section: E Human Blockage Results and Analysismentioning

confidence: 99%

Section: E Human Blockage Results and Analysismentioning

confidence: 99%

See 3 more Smart Citations

Small-Scale, Local Area, and Transitional Millimeter Wave Propagation for 5G Communications

Rappaport

MacCartney

Sun

et al. 2017

IEEE Trans. Antennas Propagat.

144

121

View full text Add to dashboard Cite

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Investigation of Millimeter Wave Propagation Characteristics at E-band for Future Multi-Gigabit Wireless Communications

Adula

Gebrestadik

2022

Preprint

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Millimeter waves hold strong promise for future multi-Giga wireless communication due to the large available bandwidth. Due to the short wavelength of millimeter waves traveling a short distance, experiencing severe multipath, leading to large delay spread and path loss. i.e. large inter-symbol interference. However, the wideband propagation characteristics of these E-bands are not well studied. Therefore, in this paper, we aim to investigate the propagation characteristics of millimeter waves in the outdoor market at E-Band. In our paper, the Intelligent Ray Tracing model is used to predict wideband parameters that affect the propagation of millimeter waves by considering the geometry of environments. In this research, the biggest marketplace in Africa, Merkato is considered as a case study. We have found out that the propagation is mainly due to direct path as well as single and two-times reflections and diffractions from building walls. In particular, we have observed that 73 GHz produces the best outcome for path loss and received power when compared with other frequencies. A good agreement is observed between the simulation, ABG, and CI path loss model.

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Site specific analysis on mm-Wave radio propagation in commercial small urban

Cited by 2 publications

References 11 publications

Small-Scale, Local Area, and Transitional Millimeter Wave Propagation for 5G Communications

Small-Scale, Local Area, and Transitional Millimeter Wave Propagation for 5G Communications

Investigation of Millimeter Wave Propagation Characteristics at E-band for Future Multi-Gigabit Wireless Communications

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