Fading Evaluation in Standardized 5G Millimeter-Wave Band
[EN] Recent standardization of portions of the millimeter-wave (mm-wave) band for fifth-generation (5G) operation has called for further research on how short-term fading behaves in that unexplored part of the spectrum. With such a target, this paper reports on a thorough measurement campaign conduc...
| Authors: | , , , , , , , |
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| Format: | article |
| Publication Date: | 2021 |
| Country: | España |
| Institution: | Universitat Politècnica de València (UPV) |
| Repository: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Language: | English |
| OAI Identifier: | oai:riunet.upv.es:10251/183660 |
| Online Access: | https://riunet.upv.es/handle/10251/183660 |
| Access Level: | Open access |
| Keyword: | Fading model Wireless channel 5G-NR Multipath fading Mm-wave TEORIA DE LA SEÑAL Y COMUNICACIONES |
| Summary: | [EN] Recent standardization of portions of the millimeter-wave (mm-wave) band for fifth-generation (5G) operation has called for further research on how short-term fading behaves in that unexplored part of the spectrum. With such a target, this paper reports on a thorough measurement campaign conducted in an indoor environment characterized by rich-multipath scattering, a part of a modern building, with floor and ceiling constructed of reinforced concrete over steel plates with wood and plasterboard-paneled walls. Particularly, measurements have been performed in a variety of scenarios, under line-of-sight (LoS) and non-line-ofsight (nLoS) conditions, for a wide range of frequencies, namely from 25 to 40 GHz - a span of 15 GHz - therefore, including 26, 28 and 39 GHz. First and second order statistics of representative fading models, namely Rayleigh, Rice, Nakagami, folded normal, alpha-mu, eta-mu, kappa-mu and alpha-eta-kappa-mu have been investigated. The metrics used in the analysis were the normalized mean square error (NMSE), the Kolmogorov-Smirnov (KS), and the Akaike information criterion (AIC). Additionally, the study of the kappa-mu. model is advanced, in which new, exact, simple closed-form expressions for probability density function, cumulative distribution function, and level crossing rate are derived for some particular cases, namely for mu = n + 1/2 in which n is an element of N. |
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