Beamforming and scheduling strategies for time slotted multiuser MIMO systems

Semih Serbetli, Aylin Yener

    Research output: Contribution to journalConference article

    6 Scopus citations

    Abstract

    We investigate the problem of scheduling for the uplink of a time slotted multiuser MIMO system with sum capacity as the performance metric. We first consider scheduling users' transmissions for fixed transmit beamformers and construct a low complexity scheduling algorithm. Since the performance of the system depends on the transmit beamformers, we consider transmit beamformer selection next, and combine the proposed scheduling algorithm with perfectly controlled transmit beamforming, eigen transmit beamforming, and antenna selection. We observe that as the feedback level is increased, the performance of the scheduling algorithm is improved. In particular, a substantial gain is attained when the individual channel state information (CSI) is available at the transmitter side.

    Original languageEnglish (US)
    Pages (from-to)1227-1231
    Number of pages5
    JournalConference Record - Asilomar Conference on Signals, Systems and Computers
    Volume1
    StatePublished - Dec 1 2004
    EventConference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
    Duration: Nov 7 2004Nov 10 2004

    All Science Journal Classification (ASJC) codes

    • Signal Processing
    • Computer Networks and Communications

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