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.
Type:
Invited paper in a conference
City:
Asilomar
Date:
2016-11-06
Department:
Communication systems
Eurecom Ref:
5072
Copyright:
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