A non-stationary 3-D wideband twin-cluster model for 5G massive MIMO channels

Shangbin Wu, Cheng Xiang Wang, El Hadi M Aggoune, Mohammed M. Alwakeel, Yejun He

Research output: Contribution to journalArticle

114 Citations (Scopus)

Abstract

This paper proposes a novel theoretical non-stationary three dimensional (3-D) wideband twin-cluster channel model for massive multiple-input multiple-output (MIMO) communication systems with carrier frequencies on the order of gigahertz (GHz). As the dimension of antenna arrays cannot be ignored for massive MIMO, near field effects instead of far field effects are considered in the proposed model. These include the spherical wavefront assumption and a birth-death process to model non-stationary properties of clusters such as cluster appearance and disappearance on both the array and time axes. Their impacts on massive MIMO channels are investigated via statistical properties including correlation functions, condition numbers, and angular power spectra. Additionally, the impact of elevation angles on correlation functions is discussed. A corresponding simulation model for the theoretical model is also proposed. Finally, numerical analysis shows that the proposed channel models are able to serve as a design framework for massive MIMO channel modeling.

Original languageEnglish
Article number6824189
Pages (from-to)1207-1218
Number of pages12
JournalIEEE Journal on Selected Areas in Communications
Volume32
Issue number6
DOIs
Publication statusPublished - 1 Jan 2014

Keywords

  • 3D twin-cluster channel model
  • Massive MIMO
  • spherical wavefront

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

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