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Content Provider | IEEE Xplore Digital Library |
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Author | Guosen Yue Prasad, N. Meilong Jiang Khojastepour, M. Rangarajan, S. |
Copyright Year | 2013 |
Description | Author affiliation: NEC Labs. America, Inc., Princeton, NJ, USA (Guosen Yue; Prasad, N.; Khojastepour, M.; Rangarajan, S.) |
Abstract | In this paper, we consider a downlink (DL) multiuser (MU) multi-input-multi-output (MIMO) channel with linear precoding in advanced cellular systems. We propose a general residual error based channel state information (CSI) feedback framework to improve the MU-MIMO performance. In particular, we propose a simple form of the enhanced feedback, i.e., residual error norm (REN) feedback in addition to the conventional implicit CSI report, in the Long Term Evolution (LTE) cellular systems. We also illustrate mechanisms that the base station uses to exploit the proposed enhanced CSI feedback for rate-matching. The system level simulations demonstrate that the proposed residual error based enhanced CSI feedback with REN provides substantial system throughput improvements in both homogenous and heterogenous networks. |
Sponsorship | IEEE Inf. Theory Soc. |
Starting Page | 1 |
Ending Page | 6 |
File Size | 611132 |
Page Count | 6 |
File Format | |
ISBN | 9781467352376 |
e-ISBN | 9781467352390 |
e-ISBN | 9781467352383 |
DOI | 10.1109/CISS.2013.6552259 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2013-03-20 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Base stations Channel estimation Interference Downlink MIMO Vectors Signal to noise ratio |
Content Type | Text |
Resource Type | Article |
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