Propagation Models and Performance Evaluation for 5G Millimeter-Wave Bands

Abstract

Fifth-generation (5G) wireless networks are expected to operate at both microwave and millimeter-wave (mmWave) frequency bands, including frequencies in the range of 24 to 86 GHz. Radio propagation models are used to help engineers design, deploy, and compare candidate wireless technologies, and have a profound impact on the decisions of almost every aspect of wireless communications. This paper provides a comprehensive overview of the channel models that will likely be used in the design of 5G radio systems. We start with a discussion on the framework of channel models, which consists of classical models of path loss versus distance, large-scale, and small-scale fading models, and multipleinput multiple-output channel models. Then, key differences between mmWave and microwave channel models are presented, and two popular mmWave channel models are discussed: the 3rd Generation Partnership Project model, which is adopted by the International Telecommunication Union, and the NYUSIM model, which was developed from several years of field measurements in New York City. Examples on how to apply the channel models are then given for several diverse applications demonstrating the wide impact of the models and their parameter values, where the performance comparisons of the channel models are done with promising hybrid beamforming approaches, including leveraging coordinated multipoint transmission. These results show that the answers to channel performance metrics, such as spectrum efficiency, coverage, hardware/signal processing requirements, etc., are extremely sensitive to the choice of channel models.

EPOWT: A denoising technique of the electrocardiography signal transmission via 5G wireless communications

“…The chosen wireless network metrics are defined and validated at this instant. The chosen values for fd were 24GHz and 86GHz . Even though number of values was simulated at the start, the results from the two values mentioned above are simply recorded in the majority cases so as to avoid an overwhelming capacity of an unnecessary data at the time of conversation.…”

A Study of Interference Distributions in Millimeter Wave Cellular Networks

“…LTE) networks. We further compare the effect of mmWave channel models on the interference distributions by considering an analytical channel model (ACM) based on the 3GPP channel model [6], [7] and the measurement-based channel simulator NYUSIM developed from extensive field measurements in New York City [8], [9].…”

“…2) Measurement-based NYUSIM channel generator: NYUSIM is a channel generator simulation platform which can generate realistic mmWave channels based upon its input parameters [8], [9]. The models employed in NYUSIM to generate channels are based on extensive measurements at several mmWave frequencies in New York City.…”

Spectral Efficiency Analysis in Presence of Correlated Gamma-Lognormal Desired and Interfering Signals

“…Since fifth generation (5G) mobile networks are destined to use millimeter wave (mmWave) spectrum [1], [16], [17], we present the downlink signal to interference power ratio (SIR) based spectral efficiency (SE) evaluation of a recently conducted measurement campaign reported in [18]. We also show the effectiveness of our derived expressions in sub-6 GHz band 1 which would still remain an important part of 5G, especially for outdoor coverage.…”