Inter-user interference suppression precoding based on SLNR for multi-user joint transmission in coordinated multi-point system
作者： Datong Xu , Pinyi Ren
DOI: 10.1109/PIMRC.2012.6362648
关键词:
摘要: Joint transmission (JT) allows base stations (BSs) to serve multiple users (UEs) in the same time and frequency resources, wherefore inter-user interference (IUI) will arise. To solve this problem, an suppressed precoding (IUISP) scheme is proposed paper. IUISP contains two steps: firstly, we utilize system degree of freedom suppress generated by signal any UE leaking all others at each BS independently with sharing linear combination matrixes designed UEs before precoding; secondly, based on IUI suppression, signal-to-leakage-and-noise ratio (SLNR) criterion applied attain better performance. It can be found that paper can't need channel state information (CSI) interaction between BSs a cooperation cluster. Furthermore, performance analysis simulation results show has application value noncoherent JT improve
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