MA Zhonggui, ZHOU Xianwei, WANG Hongbo, TU Xuyan. Study on Dynamic Spectrum Management Modelfor Interactive Cognitive Radio[J]. Chinese Journal of Electronics, 2010, 19(1): 145-149.
Citation: MA Zhonggui, ZHOU Xianwei, WANG Hongbo, TU Xuyan. Study on Dynamic Spectrum Management Modelfor Interactive Cognitive Radio[J]. Chinese Journal of Electronics, 2010, 19(1): 145-149.

Study on Dynamic Spectrum Management Modelfor Interactive Cognitive Radio

  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-01-05
  • In Interactive cognitive radio networks
    (ICRN), secondary usage of spectrum is of competition and
    con°ict, and radio frequency environment is time-varying.
    In order to realize real-time secondary spectrum usage, we
    propose architecture based on SoftMan for the ICRN. In
    this architecture, the ICRN are divided into many coali-
    tions according to geographical locations, utilization de-
    gree of spectrum, frequency range and transmission power
    level. In one coalition, a dynamic spectrum management
    model based on di®erential games is proposed, and feed-
    back Nash equilibrium solution to the non-cooperative dif-
    ferential games is given and analyzed. Di®erential games
    study a class of decision problems, under which the evolu-
    tion of the state is described by a di®erential equation and
    the players act throughout a time interval. So the model
    can ensure real-time secondary spectrum usage. The simu-
    lation results show that the model can improve e±ciency of
    spectrum utilization, and re°ect realistically time-varying
    radio frequency environment. It also constitutes the theo-
    retical foundation for the spectrum management in a dy-
    namic environment.
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