Novel 3D Non-Stationary Wideband Models for Massive MIMO Channels

Carlos Lopez, Cheng-Xiang Wang

Research output: Contribution to journalArticle

Abstract

In this paper, a novel three-dimensional (3D) nonstationary wideband geometry-based stochastic theoretical channel model for massive multiple-input multiple-output (MIMO) communication systems is proposed. Firstly, a second-order approximation to the spherical wavefront in space and time domains, i.e., parabolic wavefront, is proposed to efficiently model near-field effects. Secondly, environment evolution effects are modeled by spatial-temporal cluster (re)appearance and shadowing processes. We propose (re)appearance processes to model the visibility of clusters with enhanced spatial-temporal consistency. Shadowing processes are used to capture smooth spatial-temporal variations of the clusters’ average power. Additionally, a corresponding simulation model is derived along with a 3D extension of the Riemann sum method for parameters computation. Key statistical properties of the proposed model, e.g., the spatial-temporal cross-correlation function, are derived and analyzed. Finally, we present numerical and simulation results showing an excellent agreement between the theoretical and simulation models and validating the proposed parameter computation method. The accuracy and flexibility of the proposed simulation model are demonstrated by comparing simulation results and measurements of the delay spread, slope of cluster power variations, and visibility regions’ size.
Original languageEnglish
JournalIEEE Transactions on Wireless Communications
Early online date13 Feb 2018
DOIs
Publication statusE-pub ahead of print - 13 Feb 2018

Fingerprint

Multiple-input multiple-output (MIMO)
Simulation Model
Shadowing
Visibility
Wave Front
Theoretical Model
Riemann sum
Cross-correlation Function
Second-order Approximation
Wavefronts
Multiple-input multiple-output (MIMO) Systems
Channel Model
Near-field
Model
Statistical property
Communication Systems
Time Domain
Slope
Simulation
Flexibility

Keywords

  • 3D non-stationary channel model
  • Antenna arrays
  • Azimuth
  • Channel models
  • cluster reapperance
  • Computational modeling
  • Massive MIMO
  • MIMO communication
  • parabolic wavefront
  • shadowing of clusters
  • Solid modeling
  • Three-dimensional displays

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

@article{5e7f02e264164d1da0ef0d2dc99bfcff,
title = "Novel 3D Non-Stationary Wideband Models for Massive MIMO Channels",
abstract = "In this paper, a novel three-dimensional (3D) nonstationary wideband geometry-based stochastic theoretical channel model for massive multiple-input multiple-output (MIMO) communication systems is proposed. Firstly, a second-order approximation to the spherical wavefront in space and time domains, i.e., parabolic wavefront, is proposed to efficiently model near-field effects. Secondly, environment evolution effects are modeled by spatial-temporal cluster (re)appearance and shadowing processes. We propose (re)appearance processes to model the visibility of clusters with enhanced spatial-temporal consistency. Shadowing processes are used to capture smooth spatial-temporal variations of the clusters’ average power. Additionally, a corresponding simulation model is derived along with a 3D extension of the Riemann sum method for parameters computation. Key statistical properties of the proposed model, e.g., the spatial-temporal cross-correlation function, are derived and analyzed. Finally, we present numerical and simulation results showing an excellent agreement between the theoretical and simulation models and validating the proposed parameter computation method. The accuracy and flexibility of the proposed simulation model are demonstrated by comparing simulation results and measurements of the delay spread, slope of cluster power variations, and visibility regions’ size.",
keywords = "3D non-stationary channel model, Antenna arrays, Azimuth, Channel models, cluster reapperance, Computational modeling, Massive MIMO, MIMO communication, parabolic wavefront, shadowing of clusters, Solid modeling, Three-dimensional displays",
author = "Carlos Lopez and Cheng-Xiang Wang",
year = "2018",
month = "2",
day = "13",
doi = "10.1109/TWC.2018.2804385",
language = "English",
journal = "IEEE Transactions on Wireless Communications",
issn = "1536-1276",
publisher = "IEEE",

}

Novel 3D Non-Stationary Wideband Models for Massive MIMO Channels. / Lopez, Carlos; Wang, Cheng-Xiang.

In: IEEE Transactions on Wireless Communications, 13.02.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Novel 3D Non-Stationary Wideband Models for Massive MIMO Channels

AU - Lopez, Carlos

AU - Wang, Cheng-Xiang

PY - 2018/2/13

Y1 - 2018/2/13

N2 - In this paper, a novel three-dimensional (3D) nonstationary wideband geometry-based stochastic theoretical channel model for massive multiple-input multiple-output (MIMO) communication systems is proposed. Firstly, a second-order approximation to the spherical wavefront in space and time domains, i.e., parabolic wavefront, is proposed to efficiently model near-field effects. Secondly, environment evolution effects are modeled by spatial-temporal cluster (re)appearance and shadowing processes. We propose (re)appearance processes to model the visibility of clusters with enhanced spatial-temporal consistency. Shadowing processes are used to capture smooth spatial-temporal variations of the clusters’ average power. Additionally, a corresponding simulation model is derived along with a 3D extension of the Riemann sum method for parameters computation. Key statistical properties of the proposed model, e.g., the spatial-temporal cross-correlation function, are derived and analyzed. Finally, we present numerical and simulation results showing an excellent agreement between the theoretical and simulation models and validating the proposed parameter computation method. The accuracy and flexibility of the proposed simulation model are demonstrated by comparing simulation results and measurements of the delay spread, slope of cluster power variations, and visibility regions’ size.

AB - In this paper, a novel three-dimensional (3D) nonstationary wideband geometry-based stochastic theoretical channel model for massive multiple-input multiple-output (MIMO) communication systems is proposed. Firstly, a second-order approximation to the spherical wavefront in space and time domains, i.e., parabolic wavefront, is proposed to efficiently model near-field effects. Secondly, environment evolution effects are modeled by spatial-temporal cluster (re)appearance and shadowing processes. We propose (re)appearance processes to model the visibility of clusters with enhanced spatial-temporal consistency. Shadowing processes are used to capture smooth spatial-temporal variations of the clusters’ average power. Additionally, a corresponding simulation model is derived along with a 3D extension of the Riemann sum method for parameters computation. Key statistical properties of the proposed model, e.g., the spatial-temporal cross-correlation function, are derived and analyzed. Finally, we present numerical and simulation results showing an excellent agreement between the theoretical and simulation models and validating the proposed parameter computation method. The accuracy and flexibility of the proposed simulation model are demonstrated by comparing simulation results and measurements of the delay spread, slope of cluster power variations, and visibility regions’ size.

KW - 3D non-stationary channel model

KW - Antenna arrays

KW - Azimuth

KW - Channel models

KW - cluster reapperance

KW - Computational modeling

KW - Massive MIMO

KW - MIMO communication

KW - parabolic wavefront

KW - shadowing of clusters

KW - Solid modeling

KW - Three-dimensional displays

UR - http://www.scopus.com/inward/record.url?scp=85042112663&partnerID=8YFLogxK

U2 - 10.1109/TWC.2018.2804385

DO - 10.1109/TWC.2018.2804385

M3 - Article

JO - IEEE Transactions on Wireless Communications

JF - IEEE Transactions on Wireless Communications

SN - 1536-1276

ER -