On the Degrees of Freedom of time correlated MISO broadcast channel with delayed CSIT

Abstract

We consider the time correlated MISO broadcast channel where the transmitter has partial knowledge on the current channel state, in addition to delayed channel state information (CSI). Rather than exploiting only the current CSI, as the zero-forcing precoding, or only the delayed CSI, as the Maddah-Ali-Tse (MAT) scheme, we propose a seamless strategy that takes advantage of both. The achievable degrees of freedom of the proposed scheme is characterized in terms of the quality of the current channel knowledge.

arXiv comment7 pages, 1 figure, submitted to ISIT 2012, extended version with detailed proofs

Cited by in corpus (8)

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• Exploiting Hybrid Channel Information for Downlink Multi-User MIMO Scheduling
• Toward the Performance vs. Feedback Tradeoff for the Two-User MISO Broadcast Channel
• On the Fundamental Feedback-vs-Performance Tradeoff over the MISO-BC with Imperfect and Delayed CSIT
• Optimal Use of Current and Outdated Channel State Information - Degrees of Freedom of the MISO BC with Mixed CSIT
• Resolving Entanglements in Topological Interference Management with Alternating Connectivity