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GLOBECOM
2007
IEEE
13 years 11 months ago
A Simple Multiuser and Single-User Dual-Mode Downlink System with Limited Feedback
— Limited feedback systems that simultaneously transmit to multiple users are noise power limited at low SNR and interference power limited at high SNR. Specifically, there is a...
Chun Kin Au-Yeung, Seung Young Park, David James L...
ICC
2009
IEEE
205views Communications» more  ICC 2009»
13 years 11 months ago
Dynamic Channel Feedback Control for Limited-Feedback Multi-User MIMO Systems
—Efficient channel feedback methods are becoming more important in limited-feedback multi-user multiple input multiple output (MU-MIMO) systems. We propose a new Dynamic channEl...
Illsoo Sohn, Chang Soon Park, Kwang Bok Lee
JSAC
2008
90views more  JSAC 2008»
13 years 4 months ago
Limited feedback schemes for downlink OFDMA based on sub-channel groups
Abstract--In a downlink Orthogonal Frequency Division Multiple Access (OFDMA) system, optimally allocating sub-channels across mobile users can require excessive feedback of channe...
Jieying Chen, Randall A. Berry, Michael L. Honig
VTC
2008
IEEE
162views Communications» more  VTC 2008»
13 years 11 months ago
A Selective Cluster Index Scheduling Method in OFDMA
—OFDM is an attractive solution for the design of future wireless communications due to its robustness to dispersion in multipath environments. Additional diversity gains can be ...
Marios Nicolaou, Angela Doufexi, Simon Armour
ICC
2009
IEEE
130views Communications» more  ICC 2009»
13 years 2 months ago
User Profiling: A Method for Limited Feedback in OFDMA Systems
In the OFDMA downlink, obtaining Channel State Information (CSI) from users is necessary for the Base Station (BS) to optimize network performance by intelligently allocating resou...
Vinay R. Majjigi, Rajiv Agarwal, John M. Cioffi