Journal ArticleDOI
Bit error simulation for pi /4 DQPSK mobile radio communications using two-ray and measurement-based impulse response models
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TLDR
It is shown that BER is not only dependent on the RMS delay spread, but also on the distribution of temporal and spatial multipath components in local areas and can underestimate the BER by orders of magnitude.Abstract:
An accurate software/hardware bit-by-bit error simulator for mobile radio communications is described. Simulation results in indoor and outdoor channels are compared with theoretical results. Bit error rate (BER) results in simulated frequency-selective fading channels generated by several channel models such as two-ray, constant amplitude, and simulated indoor radio channel impulse models (SIRCIMs) are presented. It is shown that BER is not only dependent on the RMS delay spread, but also on the distribution of temporal and spatial multipath components in local areas. An important result is that a two-ray Rayleigh fading model is a poor fit for indoor wireless channels and, if used, can underestimate the BER by orders of magnitude. A real-time bit error simulation of video transmission using the bit-by-bit error simulator is described. The simulator, called BERSIM, is shown to be a useful tool for evaluating emerging data transmission products for digital mobile communications. >read more
Citations
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Journal ArticleDOI
A survey of various propagation models for mobile communication
TL;DR: An impulse-response characterization for the propagation path is presented, including models for small-scale fading, and it is shown that when two-way communication ports can be defined for a mobile system, it is possible to use reciprocity to focus the energy along the direction of an intended user without any explicit knowledge of the electromagnetic environment in which the system is operating.
Proceedings ArticleDOI
A novel millimeter-wave channel simulator and applications for 5G wireless communications
TL;DR: In this article, the authors present details and applications of a novel channel simulation software named NYUSIM, which can be used to generate realistic temporal and spatial channel responses to support realistic physical and link-layer simulations and design for fifth-generation (5G) cellular communications.
Proceedings ArticleDOI
28 GHz Millimeter-Wave Ultrawideband Small-Scale Fading Models in Wireless Channels
TL;DR: Small-scale fading measurements for 28 GHz outdoor millimeter-wave ultrawideband channels using directional horn antennas at the transmitter and receiver are presented and signal amplitudes reach a correlation of 0 after 2 and 5 wavelengths in LOS and NLOS co-polarized V-V antenna scenarios.
Proceedings ArticleDOI
Local multipath model parameters for generating 5G millimeter-wave 3GPP-like channel impulse response
TL;DR: The time cluster - spatial lobe (TCSL) modeling approach uses an alternative physically-based binning procedure and recreates 3GPP model parameters to generate channel impulse responses, as well as new parameters like the RMS lobe angular spreads useful in quantifying millimeter-wave directionality.
References
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Book
Microwave Mobile Communications
William C. Jakes,Donald C. Cox +1 more
TL;DR: An in-depth and practical guide, Microwave Mobile Communications will provide you with a solid understanding of the microwave propagation techniques essential to the design of effective cellular systems.
Journal ArticleDOI
A statistical theory of mobile-radio reception
TL;DR: In this article, the statistical characteristics of the fields and signals in the reception of radio frequencies by a moving vehicle are deduced from a scattering propagation model, assuming that the field incident on the receiver antenna is composed of randomly phased azimuthal plane waves of arbitrary angle angles.
Journal ArticleDOI
Statistical channel impulse response models for factory and open plan building radio communicate system design
TL;DR: Statistical radio channel impulse response models are presented for the analysis and design of wireless factory and open plan office communication systems and large-scale models for path loss are implicitly included in this work.
Journal ArticleDOI
The Effects of Time Delay Spread on Portable Radio Communications Channels with Digital Modulation
TL;DR: A frequencyselective, slowly fading channel is studied by computer simulation and it is found that both GMSK and QPSK with a raised-cosine Nyquist pulse are suitable for a TDM/TDMA digital portable communications channel.
Journal ArticleDOI
Trends in cellular and cordless communications
TL;DR: The evolution of wireless information networks is traced from the present first generation systems to next century's third generation, envisioned as a unified wireless access replacing the diverse and incompatible second-generation networks with a single means of wireless access to advanced information services.