Modeling and Analysis of Opportunistic Spectrum Sharing Systems with Markov Approach

Opportunistic spectrum sharing has become a promising approach to fully utilize the scarce spectrum resources. In this paper, we analyze the performance of a wireless system consisting of two secondary user (SU) groups with different priorities, which are defined to satisfy the different quality-of-service (QoS) requirements. At the same time, we take the errors of spectrum sensing (i.e. miss-detection and false alarm) into consideration. We derive system performance metrics such as SU forced termination probability and blocking probability. Our results suggest the proposed model can improve the secondary system capacity significantly even under unreliable spectrum detection.

[1]  Brian M. Sadler,et al.  A Survey of Dynamic Spectrum Access , 2007, IEEE Signal Processing Magazine.

[2]  Waqas Ahmed,et al.  Channel Allocation for Fairness in Opportunistic Spectrum Access Networks , 2010, 2010 IEEE Wireless Communication and Networking Conference.

[3]  Zhi Ding,et al.  Opportunistic spectrum access in cognitive radio networks , 2008, IJCNN.

[4]  Rajarathnam Chandramouli,et al.  Dynamic spectrum access in open spectrum wireless networks , 2006, IEEE Journal on Selected Areas in Communications.

[5]  Brian M. Sadler,et al.  Dynamic Spectrum Access: Signal Processing, Networking, and Regulatory Policy , 2006, ArXiv.

[6]  Friedrich Jondral,et al.  Comparison of bandwidth utilization for controlled and uncontrolled channel assignment in a spectrum pooling system , 2002, Vehicular Technology Conference. IEEE 55th Vehicular Technology Conference. VTC Spring 2002 (Cat. No.02CH37367).

[7]  K. J. Ray Liu,et al.  Primary-prioritized Markov approach for dynamic spectrum allocation , 2009, IEEE Transactions on Wireless Communications.

[8]  Brian L. Mark,et al.  Modeling and analysis of opportunistic spectrum sharing with unreliable spectrum sensing , 2009, IEEE Transactions on Wireless Communications.

[9]  Yong Huat Chew,et al.  On the Modeling and Performance of Three Opportunistic Spectrum Access Schemes , 2010, IEEE Transactions on Vehicular Technology.