A General Coupling-Based Model Framework for Wideband MIMO Channels

作者：Zhang Yan^*; Edfors Ove; Hammarberg Peter; Hult Tommy; Chen Xiang; Zhou Shidong; Xiao Limin; Wang Jing

来源：IEEE Transactions on Antennas and Propagation, 2012, 60(2): 574-586.

DOI：10.1109/TAP.2011.2173436

• Channel capacity
• channel measurement
• coupling-based
• multiple-input multiple-output (MIMO)
• wideband channel model

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.

• 出版日期2012-2
• 单位清华大学