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Millimeter-wave (mmWave) communications rely on directional transmissions to overcome severe path loss. Nevertheless, the use of narrow beams complicates the initial access procedure and increase the latency as the transmitter and receiver…

Information Theory · Computer Science 2018-12-04 Yanpeng Yang , Hossein S. Ghadikolaei , Carlo Fischione , Marina Petrova , Ki Won Sung

The millimeter wave (mmWave) band has the potential to provide high throughput among wearable devices. When mmWave wearable networks are used in crowded environments, such as on a bus or train, antenna directivity and orientation hold the…

Information Theory · Computer Science 2015-12-03 Kiran Venugopal , Matthew C. Valenti , Robert W. Heath

The distributions of the reflection coefficients $P(R)$ for chaotic microwave cavities with time-reversal symmetry are investigated in different absorption and antenna coupling regimes. In all investigated regimes the agreement between the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 R. A. Mendez-Sanchez , U. Kuhl , M. Barth , C. H. Lewenkopf , H. J. Stoeckmann

Scattering on a resonance state coupled to a complicated background is a typical problem for mesoscopic quantum many-body systems as well as for wave propagation in the presence of a complex environment. On average, such a simple mode…

Mesoscale and Nanoscale Physics · Physics 2020-03-09 Dmitry V. Savin

A theoretical analysis of the statistical distributions of the reflected intensities from random media is presented. We use random matrix theory to analytically deduce the probability densities in the localization regime. Numerical…

Disordered Systems and Neural Networks · Physics 2009-10-31 A. Garcia-Martin , T. Lopez-Ciudad , J. J. Saenz , M. Nieto-Vesperinas

Wireless communication using fully passive metal reflectors is a promising technique for coverage expansion, signal enhancement, rank improvement and blind-zone compensation, thanks to its appealing features including zero energy…

Information Theory · Computer Science 2022-11-17 Zhi Yu , Chao Feng , Yong Zeng , Teng Li , Shi Jin

Millimeter-wave (mmWave) communication is one of the cornerstone innovations of fifth-generation (5G) wireless networks, thanks to the massive bandwidth available in these frequency bands. To correctly assess the performance of such…

Signal Processing · Electrical Eng. & Systems 2021-01-29 Mattia Lecci , Paolo Testolina , Marco Giordani , Michele Polese , Tanguy Ropitault , Camillo Gentile , Neeraj Varshney , Anuraag Bodi , Michele Zorzi

Competing cellular operators aggressively share infrastructure in many major US markets. If operators also were to share spectrum in next-generation millimeter-wave (mmWave) networks, intra-cellular interference will become correlated with…

Information Theory · Computer Science 2018-01-17 Rebal Jurdi , Abhishek K. Gupta , Jeffrey G. Andrews , Robert W. Heath

We analyze coherent wave transport in a new physical setting associated with multimode wave systems where reflection is completely suppressed and mode-dependent losses together with mode-mixing are dictating the wave propagation. An…

Optics · Physics 2019-10-24 P. Chiarawongse , H. Li , W. Xiong , C. W. Hsu , H. Cao , T. Kottos

The performance of millimeter-wave (mmWave) and sub-terahertz (sub-THz) communication systems is significantly impaired by sensitivity to sudden blockages. In this work, we employ machine learning (ML) and our physics-based simulation tool…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Roghieh Mahdavihaji , Alexandra Duel-Hallen , Hans Hallen

Large-scale blockages like buildings affect the performance of urban cellular networks, especially at higher frequencies. Unfortunately, such blockage effects are either neglected or characterized by oversimplified models in the analysis of…

Information Theory · Computer Science 2013-09-18 Tianyang Bai , Rahul Vaze , Robert W. Heath

This paper provides a deterministic channel model for a scenario where wireless connectivity is established through a reflection off a smooth planar surface of an infinite extent. The developed model is rigorously built upon the physics of…

Information Theory · Computer Science 2023-08-22 Andrea Pizzo , Angel Lozano , Sundeep Rangan , Thomas Marzetta

The use of extremely high frequency (EHF) or millimeter-wave (mmWave) band has attracted significant attention for the next generation wireless access networks. As demonstrated by recent measurements, mmWave frequencies render themselves…

We provide a deterministic channel model for a scenario where wireless connectivity is established through a reflection from a planar smooth surface of an infinite extent. The developed model is rigorously built upon the physics of wave…

Information Theory · Computer Science 2022-05-04 Andrea Pizzo , Angel Lozano , Sundeep Rangan , Thomas Marzetta

Millimeter-wave (mmWave) communication opens up tens of giga-hertz (GHz) spectrum in the mmWave band for use by next-generation wireless systems, thereby solving the problem of spectrum scarcity. Maintaining connectivity stands out to be a…

Information Theory · Computer Science 2018-02-27 Kaifeng Han , Kaibin Huang , Ying Cui , Yueping Wu

Millimeter wave (mmWave) communications which essentially employ directional antennas find applications spanning from indoor short range wireless personal area networks to outdoor cellular networks. A thorough understanding of mmWave signal…

Information Theory · Computer Science 2018-04-10 Rakesh R. T. , Debarati Sen , Goutam Das

This paper proposes a cascade blockage model for analyzing the vision that a user has of a wireless network. This model, inspired by the classical multiplicative cascade models, has a radial structure meant to analyze blockages seen by the…

Information Theory · Computer Science 2022-02-14 F. Baccelli , B. Liu , L. Decreusefond , R. Song

This letter studies the performance of a single gateway LoRa system in the presence of different interference considering the imperfect orthogonality effect. It utilizes concepts of stochastic geometry to present a low-complexity…

Networking and Internet Architecture · Computer Science 2020-11-03 Qahhar Muhammad Qadir

The potential of the millimeter wave (mmWave) band in meeting the ever growing demand for high data rate and capacity in emerging fifth generation (5G) wireless networks is well-established. Since mmWave systems are expected to use highly…

Signal Processing · Electrical Eng. & Systems 2017-10-13 Solmaz Niknam , Balasubramaniam Natarajan , Hani Mehrpouyan

We propose analytical models for the interference power distribution in a cellular system employing MIMO beamforming in rich and limited scattering environments, which capture non line-of-sight signal propagation in the microwave and mmWave…

Information Theory · Computer Science 2017-06-02 Hussain Elkotby , Mai Vu