A novel spatial Tomlinson-Harashima precoding scheme in multi-user MIMO broadcast channels
by Zufan Zhang; Yinxue Yi; Jing Yang
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 5, No. 2, 2012

Abstract: Spatial Tomlinson-Harashima Precoding (STHP) is a promising transmission technique that can mitigate Inter-User Interferences (IUI) in a multi-user Multiple Input Multiple Output broadcast channel. However, traditional STHPs cannot guarantee user fairness that is supposed to be a desirable feature for future wireless communication systems. This paper proposes an improved STHP transceiver structure. It is based on zero-forcing criterion and has the perfect user fairness. In addition to this, we also derive an elegant ordering method that can significantly improve the system performance.

Online publication date: Sun, 11-Jan-2015

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