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    On the performance of multiuser scheduling with post-examining under non-identical fading

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    Type
    Conference Paper
    Authors
    Gaaloul, Fakhreddine
    Alouini, Mohamed-Slim cc
    Radaydeh, Redha Mahmoud Mesleh
    Yang, Hong-Chuan
    KAUST Department
    Communication Theory Lab
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2012-06-20
    Online Publication Date
    2012-06-20
    Print Publication Date
    2012-04
    Permanent link to this record
    http://hdl.handle.net/10754/236734
    
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    Abstract
    We investigate the performance of a multiuser downlink access scheme based on a post-selection switch and examine algorithm. The studied scheme sequentially switches over the users that experience independent and non-identically distributed fading conditions, and selects a single user with an acceptable channel quality as compared to a pre-selected signal-to-noise ratio (SNR) threshold. If no one of the users can satisfy the target channel quality, the base station (BS) takes the advantage of the knowledge of all users channels and serves the user with the best channel quality among all users. This scheme reduces considerably the feedback load but offers a lower average spectral efficiency (ASE) as compared to that of the full feedback system with instantaneous best user selection. On the other hand, it improves the system performances, such as outage probability and average bit error rate (BER), as compared to a system that is based on a standard switching scheme without post-selection. Numerical results for the ASE average BER, and average feed back load, are presented for the cases of outdated and non-outdated rate-adaptive modulation scheme operating over independent and non-identically distributed users.
    Citation
    Gaaloul F, Radaydeh RM, Alouini M-S, Yang H-C (2012) On the performance of multiuser scheduling with post-examining under non-identical fading. 2012 IEEE Wireless Communications and Networking Conference (WCNC). doi:10.1109/WCNC.2012.6213969.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2012 IEEE Wireless Communications and Networking Conference (WCNC)
    Conference/Event name
    2012 IEEE Wireless Communications and Networking Conference, WCNC 2012
    DOI
    10.1109/WCNC.2012.6213969
    Additional Links
    http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6213969
    ae974a485f413a2113503eed53cd6c53
    10.1109/WCNC.2012.6213969
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Electrical and Computer Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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