Dual-regularized precoding: A robust approach for D2D-enabled massive MIMO

Chen, Junting; Yin, Haifan; Cottatellucci, Laura; Gesbert, David
ASILOMAR 2016, 50th Asilomar Conference on Signals, Systems and Computers, November 6-9, 2016, Asilomar, USA

This paper exploits device-to-device (D2D) communications for exchanging the downlink channel state information (CSI) among users, so that the users can design better feedback
strategies. Using a team decision approach for the feedback and precoding design, the users and the base station (BS) minimize a common mean squared error (MSE) metric based on their individual observations on the imperfect global CSI. The solutions are found to take similar forms as the regularized zero-forcing (RZF) precoder, with additional regularizations to capture the uncertainty of the exchanged CSI. Numerical results demonstrate superior performance of the proposed scheme over all D2D qualities.

Invited paper in a conference
Systèmes de Communication
Eurecom Ref:
© 2016 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

PERMALINK : https://www.eurecom.fr/publication/5072