Robust Precoding and Postcoding for Multicell Multiuser Transmission using Imperfect CSI

This paper studies the problem of precoding and post-coding design for multicell multiuser downlink transmissions in the absence of perfect channel state information (CSI). Using statistical information of imperfect CSI, an iterative multiuser multicell transceiver design is formulated by minimizing...

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Bibliographic Details
Published in:Journal of communications and networks 2016, Vol.18 (5), p.762-772
Main Authors: Nguyen-Le, Hung, Nguyen-Duy-Nhat, Vien, Tang-Tan, Chien, Bao, Vo Nguyen Quoc
Format: Article
Language:Korean
Online Access:Get full text
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Summary:This paper studies the problem of precoding and post-coding design for multicell multiuser downlink transmissions in the absence of perfect channel state information (CSI). Using statistical information of imperfect CSI, an iterative multiuser multicell transceiver design is formulated by minimizing the mean squared error (MSE) cost function of signal and leakage interference under per-base station power constraint (PBPC). The convergence of the iterative precoding and postcoding algorithm is verified by analytical and empirical results. The proposed precoding and postcoding algorithm offers a low computational complexity and robustness against CSI imperfection.
ISSN:1229-2370
1976-5541