LIU Xinyi, LI Ji, dong, et al., “Optimal Sensing Time Strategy Under Primary Outage Constraint in Cognitive Radio Networks,” Chinese Journal of Electronics, vol. 25, no. 5, pp. 907-911, 2016, doi: 10.1049/cje.2016.08.023
Citation: LIU Xinyi, LI Ji, dong, et al., “Optimal Sensing Time Strategy Under Primary Outage Constraint in Cognitive Radio Networks,” Chinese Journal of Electronics, vol. 25, no. 5, pp. 907-911, 2016, doi: 10.1049/cje.2016.08.023

Optimal Sensing Time Strategy Under Primary Outage Constraint in Cognitive Radio Networks

doi: 10.1049/cje.2016.08.023
Funds:  This work is supported by the Fundamental Research Funds for the Central Universities (No.310824161008), the National Natural Science Foundation of China (No.61231008, No.61101143), the Program for Changjiang Scholars and Innovative Research Team in University (No.IRT0852), and the 111 Project (No.B08038).
  • Received Date: 2014-07-04
  • Rev Recd Date: 2014-10-30
  • Publish Date: 2016-09-10
  • With the underlay approach, Secondary users (SUs) can utilize the same frequency bands simultaneously with Primary users (PUs) in Cognitive radio networks (CRNs). How to choose the appropriate transmission power of SUs under the influence caused by other cells is a problem. To solve this problem, spectrum sensing is introduced to identify the existence of interference which using pilot signal to perform coherent processing. Consider the probability of detection of SUs, there exists a trade-off between the sensing time and the achievable throughput of CRNs. When the prior probability of other cells' activity is unknown to SUs, throughput of the CRNs can be viewed as a concave function. According to solving the optimization problem, the optimal sensing time is obtained. Simulation results show the feasibility and correctness.
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  • S. Haykin, "Cognitive radio:Brain-empowered wireless communications", IEEE Journal on Selected Areas in Communications, Vol.23, No.2, pp.201-220, 2005.
    A. Ghasemi and E.S. Sousa, "Spectrum sensing in cognitive radio networks:Requirements, challenges and design trade-offs", IEEE Communication Magazine, Vol.46, No.4, pp.32-39, 2008.
    J.H. Zhao, X. Guan and X.P. Li, "Power allocation based on genetic simulated annealing algorithm in cognitive radio networks", Chinese Journal of Electronics, Vol.22, No.1, pp.177-180, 2013.
    Y.C. Liang, Y. Zeng and E.C.Y. Peh, "Sensing-throughput tradeoff for cognitive radio networks", IEEE Transactions on Wireless Communications, Vol.7, No.4, pp.1326-1337, 2008.
    H.T. Cheng and W.H. Zhuang, "Simple channel sensing order in cognitive radio networks", IEEE Journal on Selected Areas in Communications, Vol.29, No.4, pp.676-688, 2011.
    H. Su and X. Zhang, "Cross-layer based opportunistic MAC protocols for QoS provisionings over cognitive radio wireless networks", IEEE Journal on Selected Areas in Communications, Vol.26, No.1, pp.118-129, 2008.
    Q. Zhao, L. Tong and A. Swami, "Decentralized cognitive mac for opportunistic spectrum access in ad hoc networks:A POMDP framework", IEEE Journal on Selected Areas in Communications, Vol.25, No.3, pp.589-600, 2007.
    Q.C. Zhao, S. Geirhofer and L. Tong, "Opportunistic spectrum access via periodic channel sensing", IEEE Transactions on Signal Process, Vol.36, No.2, pp.785-796, 2008.
    B. Wang, Z. Feng and P. Zhang, "Prioritized spectrum sensing scheme based on semi-Markov process", Proc. of IEEE Vehicular Technology Conference, Yokohama, Japan, pp.1-5, 2012.
    X. Li, Q. Zhao and X. Guan, "Optimal cognitive access of markovian channels under tight collision constraints", Proc. of IEEE International Conference on Communications, Cape Town, South Africa, pp.1-5, 2010.
    X.Y. Liu, J. D Li and J. Jiang, "Optimal cooperative sensing order using inactive secondary users in cognitive radio networks", Chinese Journal of Electronics, Vol.23, No.2, pp.394-398, 2014.
    D. Cabric and A. Tkachenko, "Spectrum sensing measurements of pilot, energy, and collaborative detection", Proc. of IEEE Military Communications Conference, pp.1-7, 2006.
    S. Huang and X. Liu, "Decentralized cognitive radio control based on inference from primary link control information", IEEE Journal on Selected Topics Signal Process, Vol.29, No.2, pp.394-406, 2011.
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