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    Switch and examine transmit diversity for spectrum sharing systems

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    Type
    Conference Paper
    Authors
    Abdallah, Mohamed M.
    Alouini, Mohamed-Slim cc
    Qaraqe, Khalid A.
    KAUST Department
    Communication Theory Lab
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2011-06
    Permanent link to this record
    http://hdl.handle.net/10754/564389
    
    Metadata
    Show full item record
    Abstract
    In this paper, we develop a switch and examine transmit diversity algorithm for spectrum sharing cognitive networks. We consider a cognitive network composed of a primary link that employs constant rate and constant power transmission scheme with automatic-and-repeat request (ARQ) protocol, while the secondary link is composed of a fixed power multiple-antenna secondary transmitter and a single antenna receiver. Our objective is to develop a low complex transmit diversity algorithm at the secondary transmitter that maximizes the performance of the secondary link in terms of the effective throughput while maintaining a predetermined maximum loss in the packet rate of the primary link. In achieving this objective, we develop an algorithm that selects the best antenna, which maintains the quality of the secondary link in terms of signal-to-noise ratio above a specific threshold, based on overhearing the acknowledgment (ACK) and negative acknowledgment (NACK) feedback messages transmitted over the primary link. We also develop closed form expressions for the bit error rates and the effective throughput of the secondary link. © 2011 IEEE.
    Citation
    Abdallah, M., Alouini, M.-S., & Qaraqe, K. A. (2011). Switch and examine transmit diversity for spectrum sharing systems. 2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications. doi:10.1109/spawc.2011.5990377
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications
    Conference/Event name
    2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2011
    ISBN
    9781424493326
    DOI
    10.1109/SPAWC.2011.5990377
    ae974a485f413a2113503eed53cd6c53
    10.1109/SPAWC.2011.5990377
    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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