A cooperative spectrum sensing algorithm to minimize the sensing overhead of cognitive radio system

被引:0
作者
Wu D. [1 ]
Fan W. [1 ]
Xue F. [2 ]
Jiang G. [1 ]
机构
[1] Computer Department, Huanggang Normal University, Huanggang
[2] Radio Management Committee of Hubei, Wuhan
关键词
Cognitive radio (CR); Cognitive users; Sensing duration; Sensing overhead; Spectrum sensing;
D O I
10.18280/ejee.210210
中图分类号
学科分类号
摘要
Cognitive radio (CR) technology is an emerging technology that overcomes the scarcity and poor utilization of spectrum resources. Under the constraint of system energy, this paper puts forward a cooperative spectrum sensing algorithm to minimize the sensing overhead, considering the mutual relation between sensing duration and the number of cognitive users. The simulation results show that, when the selected cognitive users face the same mean signal-to-noise ratio (SNR), the system overhead can be minimized by determining the proper number of required cognitive users and sensing duration. Thus, the proposed algorithm was proved valid. © 2019 International Information and Engineering Technology Association. All rights reserved.
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收藏
页码:193 / 197
页数:4
相关论文
共 22 条
  • [1] Mitola J., Maquire G.Q., Cognitive radio: Making software radios more personal, IEEE Personal Communications, 6, 4, pp. 13-18, (1999)
  • [2] Kim H., Shin K.G., In-band spectrum sensing in cognitive radio networks. Energy detection or feature detection, Proceedings of the 14th Annual International Conference on Mobile Computing and Networking, pp. 14-25, (2008)
  • [3] Cabric D., Mishra S.M., Brodersen R.W., Implementation issues in spectrum sensing for cognitive radios, Proceedings of 2004 Conference Record the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, pp. 772-776, (2004)
  • [4] Selen Y., Tullberg H., Kronander J., Sensor selection for cooperative spectrum sensing, Proceedings of 2008 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks, pp. 1-11, (2008)
  • [5] Zhang W., Mallik R.K., Letaief K.B., Cooperative spectrum sensing optimization in cognitive radio networks, Proceedings of 2008 IEEE International Conference on Communications, pp. 3411-3415, (2008)
  • [6] Huang S.H., Liu X., Ding Z., Optimal sensing-transmission structure for dynamic spectrum access, Proceedings of 2009 IEEE on INFOCOM, pp. 2295-2303, (2009)
  • [7] Min A.W., Shin K.G., An optimal sensing framework based on spatial RSS-profile in cognitive radio networks, Proceedings of the 2009 6th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks, pp. 1-9, (2009)
  • [8] Lee W.Y., Akyildiz I.F., Optimal spectrum sensing framework for cognitive radio networks, IEEE Transactions on Wireless Communications, 7, 10, pp. 3845-3857, (2008)
  • [9] Darsena D., Gelli G., Verde F., An opportunistic spectrum access scheme for multicarrier cognitive sensor networks, IEEE Sensors Journal, 17, 8, pp. 2596-2606, (2017)
  • [10] Shah H.A., Koo I., A novel physical layer security scheme in OFDM-based cognitive radio networks, IEEE Access, 6, pp. 29486-29498, (2018)