Zhen-shan Zhao

Publications (1)0.41 Total impact

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  Available from: zju.edu.cn

  Article: Optimal transmission strategy for spatially correlated MIMO systems with channel statistical information

  Zhen-shan Zhao, Guo-zhi Xu
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  ABSTRACT: In real multiple-input multiple-output (MIMO) systems, the perfect channel state information (CSI) may be costly or impossible to acquire. But the channel statistical information can be considered relatively stationary during long-term transmission. The statistical information can be obtained at the receiver and fed back to the transmitter and do not require frequent update. By exploiting channel mean and covariance information at the transmitter simultaneously, this paper investigates the optimal transmission strategy for spatially correlated MIMO channels. An upper bound of ergodic capacity is derived and taken as the performance criterion. Simulation results are also given to show the performance improvement of the optimal transmission strategy.
  Journal of Zhejiang University - Science A: Applied Physics & Engineering 04/2012; 8(4):615-619. · 0.41 Impact Factor