On the performance limits of cognitive MIMO channels

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, throughput of cognitive multiple-input multiple-output (MIMO) systems operating under quality-of-service (QoS) constraints is studied. It is assumed that transmission power and the covariance of the input signal vector are varied depending on the sensed activities of primary users in the system. Considering the reliability of the transmission and channel sensing results, a state-transition model is provided. Effective capacity is determined, and expressions for the first and second derivatives of the effective capacity are obtained at SNR = 0. The minimum bit energy requirements in the presence of QoS limitations are identified. Numerical results are provided.

Original languageEnglish (US)
Title of host publication2011 IEEE Wireless Communications and Networking Conference, WCNC 2011
Pages1640-1645
Number of pages6
DOIs
StatePublished - Jun 23 2011
Externally publishedYes
Event2011 IEEE Wireless Communications and Networking Conference, WCNC 2011 - Cancun, Mexico
Duration: Mar 28 2011Mar 31 2011

Publication series

Name2011 IEEE Wireless Communications and Networking Conference, WCNC 2011

Other

Other2011 IEEE Wireless Communications and Networking Conference, WCNC 2011
CountryMexico
CityCancun
Period3/28/113/31/11

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

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  • Cite this

    Akin, S., & Gursoy, M. C. (2011). On the performance limits of cognitive MIMO channels. In 2011 IEEE Wireless Communications and Networking Conference, WCNC 2011 (pp. 1640-1645). [5779381] (2011 IEEE Wireless Communications and Networking Conference, WCNC 2011). https://doi.org/10.1109/WCNC.2011.5779381