A General Coupling-Based Model Framework for Wideband MIMO Channels

Research output: Contribution to journalArticle

Abstract

A general coupling-based model framework for wideband multiple-input multiple-output (MIMO) channels is presented in this paper. Under this framework, the channel state information (CSI) tensor can be expressed by the product of a coupling tensor, a complex Gaussian tensor and three unitary matrices. The unitary matrices can be either eigenbases or steering matrices in different domains. The coupling tensor reflects the relationship between the column vectors of these unitary matrices. The complex Gaussian tensor is used to describe the small-scale fading. Several realizations of this framework are introduced, including the wideband Kronecker-based (WKB) model, the wideband eigenvalue-decomposition-based (WEB) model, the wideband virtual presentation (WVP) model and the wideband hybrid (WHY) model. To evaluate the performance of these models, channel measurements were carried out in different indoor scenarios both at Tsinghua University and Lund University. The results show that these models have good agreement with the measured data. Furthermore, we can see that the WHY model can provide a tradeoff between complexity and accuracy in channel synthesis.

Details

Authors
  • Yan Zhang
  • Ove Edfors
  • Peter Hammarberg
  • Tommy Hult
  • Xiang Chen
  • Shidong Zhou
  • Limin Xiao
  • Jing Wang
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering
Original languageEnglish
Pages (from-to)574-586
JournalIEEE Transactions on Antennas and Propagation
Volume60
Issue number2
Publication statusPublished - 2012
Publication categoryResearch
Peer-reviewedYes