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    JSAC
    2008
    90views more  JSAC 2008»
    Limited feedback schemes for downlink OFDMA based on sub-channel groups
    14 years 16 days ago
    Limited feedback schemes for downlink OFDMA based on sub-channel groups
    Download  users.eecs.northwestern.edu
    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
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    CISS
    2007
    IEEE
    127views Information Technology» more  CISS 2007»
    How Many Users should be Turned On in a Multi-Antenna Broadcast Channel
    14 years 4 months ago
    How Many Users should be Turned On in a Multi-Antenna Broadcast Channel
    Download  ecee.colorado.edu
    This paper considers broadcast channels with L antennas at the base station and m single-antenna users, where each user has perfect channel knowledge and the base station obtains c...
    Wei Dai, Youjian Liu, Brian Rider
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