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Erschienen in:
2012 | OriginalPaper | Buchkapitel
A Novel Multi-User Transmission Scheme in TD-LTE System with Coordinated Multiple Points (CoMP)
verfasst von : Yongliang Guo, Guohong Li, Xiaohu You
Erschienen in: Recent Advances in Computer Science and Information Engineering
Verlag: Springer Berlin Heidelberg
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Coordinated multiple points (CoMP) transmission is a promising technology to improve system spectrum efficiency in LTE-Advanced system. With prior knowledge on multi-user multiple-input-multiple-output (MU-MIMO) in a single cell system, signal-to-leakage-and-noise-ratio (SLNR) is a good criterion for the design of pre-coders as compared to zero-forcing (ZF) and block diagonalization (BD). In this paper, an extension of SLNR criterion is introduced to a CoMP system with joint transmission for multi-user. Performance evaluations are provided in a TD-LTE with each cell of 4 paired cross-polarized antennas at each cell. Simulation results show that the proposed MU-MIMO scheme based on SLNR criterion can efficiently improve the system performance with ideal channel state information (CSI).