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3.       J. Wu, J. C. Olivier and C. Xiao, “Methods and apparatus for estimating fading distortion of a signal propagating in a communication channel,” United States patent 6,510,190, Jan. 2003.

4.       W. Zeng, C. Xiao, J. Lu, and X. Tao, “Generation method of low-complexity precoding modulation matrix and precoding modulation method thereof,” China patent CN102546125B, March 2015.

5.       X. Gao, A. Lu, and C. Xiao, “Large-scale MIMO system low-complexity polynomial expansion matrix inversion method and application thereof,” pending China patent CN105071843A, November 2015.