Journal ArticleDOI
Effects of antenna directivity and polarization on indoor multipath propagation characteristics at 60 GHz
TLDR
From the results of measurements and ray-tracing simulations, the use of a directive antenna at the remote terminal is demonstrated to be an effective method of reducing the effects of multipath propagation.Abstract:
In millimeter-wave indoor communications systems, the radiation patterns and polarizations of the antennas at base stations and remote terminals have a significant influence on channel characteristics. The work reported in this paper investigated the effects of the radiation patterns of the antennas at remote terminals on multipath propagation characteristics. These effects were investigated by indoor propagation measurements at 60 GHz conducted in a modern office room and by ray-tracing simulations based on geometrical optics. Multipath channel characteristics are compared in terms of impulse responses and their root-mean-square (rms) delay spreads for an omnidirectional antenna and for three directive antennas with different beam widths. From the results of measurements and ray-tracing simulations, the use of a directive antenna at the remote terminal is demonstrated to be an effective method of reducing the effects of multipath propagation. Further reduction in the multipath effects is found to be achieved by the use of circular polarization instead of linear polarization with the directive antennas.read more
Citations
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Journal ArticleDOI
Millimeter-Wave Cellular Wireless Networks: Potentials and Challenges
TL;DR: Measurements and capacity studies are surveyed to assess mmW technology with a focus on small cell deployments in urban environments and it is shown that mmW systems can offer more than an order of magnitude increase in capacity over current state-of-the-art 4G cellular networks at current cell densities.
Journal ArticleDOI
An Overview of Signal Processing Techniques for Millimeter Wave MIMO Systems
TL;DR: This article provides an overview of signal processing challenges in mmWave wireless systems, with an emphasis on those faced by using MIMO communication at higher carrier frequencies.
Journal ArticleDOI
Millimeter Wave Channel Modeling and Cellular Capacity Evaluation
Mustafa Riza Akdeniz,Yuanpeng Liu,Mathew K. Samimi,Shu Sun,Sundeep Rangan,Theodore S. Rappaport,Elza Erkip +6 more
TL;DR: Detailed spatial statistical models of the channels are derived and it is found that, even in highly non-line-of-sight environments, strong signals can be detected 100-200 m from potential cell sites, potentially with multiple clusters to support spatial multiplexing.
Journal ArticleDOI
A survey of millimeter wave communications (mmWave) for 5G: opportunities and challenges
TL;DR: A survey of existing solutions and standards is carried out, and design guidelines in architectures and protocols for mmWave communications are proposed, to facilitate the deployment of mmWave communication systems in the future 5G networks.
Journal ArticleDOI
State of the Art in 60-GHz Integrated Circuits and Systems for Wireless Communications
TL;DR: An overview of the technological advances in millimeter-wave circuit components, antennas, and propagation that will soon allow 60-GHz transceivers to provide multigigabit per second (multi-Gb/s) wireless communication data transfers in the consumer marketplace is presented.
References
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Journal ArticleDOI
Site-specific propagation prediction for wireless in-building personal communication system design
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Ray tracing as a design tool for radio networks
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Journal ArticleDOI
Mechanisms governing UHF propagation on single floors in modern office buildings
TL;DR: The authors explore features of office buildings of modern construction that influence propagation between transmitter and receiver located on the same floor and evaluates the sector average signal.
Proceedings ArticleDOI
A ray tracing approach to predicting indoor wireless transmission
TL;DR: A hybrid model is proposed, in which ray tracing is used to predict, at any given location, the local mean of the received power and the delay profile, which accounts for all (transmitted as well as reflected) rays reaching the receiver location after an arbitrary number of reflections.