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Designers of millimeter wave (mmWave) cellular systems need to evaluate line-of-sight (LOS) maps to provide good service to users in urban scenarios. In this letter, we derive estimators to obtain LOS maps in scenarios with potential…

Signal Processing · Electrical Eng. & Systems 2024-11-12 Tomàs Ortega , Antonio Pascual-Iserte , Olga Muñoz

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

Multi-tier cellular networks are considered as an effective solution to enhance the coverage and data rate offered by cellular systems. In a multi-tier network, high power base stations (BSs) such as macro BSs are overlaid by lower power…

Networking and Internet Architecture · Computer Science 2014-09-30 Ahmed Hamdi Sakr , Ekram Hossain

Due to emerging technology, efficient multitasking approach is highly demanded. But it is hard to accomplish in heterogeneous wireless networks, where diverse networks have dissimilar geometric features in service and traffic models.…

Networking and Internet Architecture · Computer Science 2013-09-19 Muhammad Shoaib Khan , Khaled Elleithy

The performances of multimedia applications built on wireless systems depend on bandwidth availability that might heavily affect the quality of service. The IEEE 802.11 standards do not provide performed mechanism for bandwidth management…

Networking and Internet Architecture · Computer Science 2013-08-12 Adel Soudani , Thierry Divoux , Rached Tourki

While analyzing mobile systems we often approximate the actual coverage surface and assume an ideal cell shape. In a multi-cellular network, because of its tessellating nature, a hexagon is more preferred than a circular geometry. Despite…

Information Theory · Computer Science 2013-06-04 Mouhamed Abdulla , Yousef R. Shayan

Next-generation wireless networks are evolving towards architectures that integrate terrestrial and non-terrestrial networks (NTN), unitedly known as vertical heterogeneous networks (vHetNets). This integration is vital to address the…

Networking and Internet Architecture · Computer Science 2025-03-04 Afsoon Alidadi Shamsabadi , Animesh Yadav , Halim Yanikomeroglu

Offering of different attractive opportunities by different wireless technologies trends the convergence of heterogeneous networks for the future wireless communication system. To make a seamless handover among the heterogeneous networks,…

Multimedia · Computer Science 2011-03-07 Mostafa Zaman Chowdhury , Yeong Min Jang

This paper presents key parameters including the line-of-sight (LOS) probability, large-scale path loss, and shadow fading models for the design of future fifth generation (5G) wireless communication systems in urban macro-cellular (UMa)…

Information Theory · Computer Science 2016-11-17 Shu Sun , Timothy A. Thomas , Theodore S. Rappaport , Huan Nguyen , Istvan Z. Kovacs , Ignacio Rodrigue

Cooperation in cellular networks has been recently suggested as a promising scheme to improve system performance, especially for cell-edge users. In this work, we use stochastic geometry to analyze cooperation models where the positions of…

Information Theory · Computer Science 2015-02-11 Anastasios Giovanidis , Francois Baccelli

The wireless research community has expressed major interest in the sub-terahertz band for enabling mobile communications in future wireless networks. The sub-terahertz band offers a large amount of available bandwidth and, therefore, the…

Information Theory · Computer Science 2023-02-08 Marco Di Renzo , Davide Dardari , Nicolo' Decarli

Based on the distinguishing features of multi-tier millimeter wave (mmWave) networks such as different transmit powers, different directivity gains from directional beamforming alignment and path loss laws for line-of-sight (LOS) and…

Information Theory · Computer Science 2018-01-09 Siqing Xiong , Lijun Wang , Kyung Sup Kwak , Zhiquan Bai , Jiang Wang , Qiang Li , Tao Han

As LoRaWAN networks are actively being deployed in the field, it is important to comprehend the limitations of this Low Power Wide Area Network technology. Previous work has raised questions in terms of the scalability and capacity of…

Networking and Internet Architecture · Computer Science 2017-05-24 Floris Van den Abeele , Jetmir Haxhibeqiri , Ingrid Moerman , Jeroen Hoebeke

In the context of 5G, infrastructure sharing has been identified as a potential solution to reduce the investment costs of cellular networks. In particular, it can help low-income regions build 5G networks more affordably and further bridge…

Systems and Control · Electrical Eng. & Systems 2025-02-13 Hao Lin , Mustafa A. Kishk , Mohamed-Slim Alouini

Non-line-of-sight (NLOS) imaging aims at reconstructing targets obscured from the direct line of sight. Existing NLOS imaging algorithms require dense measurements at rectangular grid points in a large area of the relay surface, which…

Image and Video Processing · Electrical Eng. & Systems 2023-06-21 Xintong Liu , Jianyu Wang , Leping Xiao , Zuoqiang Shi , Xing Fu , Lingyun Qiu

Multicell joint processing can mitigate inter-cell interference and thereby increase the spectral efficiency of cellular systems. Most previous work has assumed phase-aligned (coherent) transmissions from different base transceiver stations…

Information Theory · Computer Science 2016-11-17 Mingguang Xu , Dongning Guo , Michael L. Honig

This paper presents a tractable model for analyzing non-coherent joint transmission base station (BS) cooperation, taking into account the irregular BS deployment typically encountered in practice. Besides cellular-network specific aspects…

Information Theory · Computer Science 2014-09-22 Ralph Tanbourgi , Sarabjot Singh , Jeffrey G. Andrews , Friedrich K. Jondral

This study proposes a novel stochastic geometry framework analyzing power control strategies in spatially correlated network topologies. Heterogeneous networks are studied, with users modeled via the superposition of homogeneous and Poisson…

Signal Processing · Electrical Eng. & Systems 2024-02-23 Martin Willame , Charles Wiame , Jérôme Louveaux , Claude Oestges , Luc Vandendorpe

Localization of robots is vital for navigation and path planning, such as in cases where a map of the environment is needed. Ultra-Wideband (UWB) for indoor location systems has been gaining popularity over the years with the introduction…

Robotics · Computer Science 2022-06-23 Muhammad Shalihan , Ran Liu , Chau Yuen

Base station (BS) cooperation is set to play a key role in managing interference in dense heterogeneous cellular networks (HCNs). Non-coherent joint transmission (JT) is particularly appealing due to its low complexity, smaller overhead,…

Information Theory · Computer Science 2014-02-18 Ralph Tanbourgi , Sarabjot Singh , Jeffrey G. Andrews , Friedrich K. Jondral