COMNET 2015, 5th International Conference on Communications and Networking, November 4-7, 2015, Hammamet, Tunisia
We propose a novel protocol for fast fading massive MIMO systems in Frequency Division Duplex (FDD) mode and, in general, non-reciprocal channels. Our approach relies on Device-to-Device (D2D) cooperation to avoid instantaneous channel state information (CSI) feedback, unaffordable in practical systems. This protocol assumes that clusters of user terminals (UT) cooperate to create virtual MIMO at a target UT via D2D
cooperation. The base station (BS) has statistical knowledge of the downlink channel and it is aware of the cooperation but it is oblivious of the statistics of the D2D links and the transmitter is designed based on the downlink channel statistics solely. The performance of the proposed protocol is analyzed and compared to state-of-art schemes based on instantaneous CSI feedback.
Invited paper in a conference
Systèmes de Communication
© 2015 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.