Browse > Article

A Sensing Channel Scheduling Scheme for Improving the Cognition Ability in Cognitive Radio Systems  

Han, Jeong-Ae (서울대학교 컴퓨터공학부)
Jeon, Wha-Sook (서울대학교 컴퓨터공학부)
Publication Information
Journal of KIISE:Information Networking / v.35, no.2, 2008 , pp. 130-138 More about this Journal
Abstract
The scheme for recognizing the channel availability is one of the most important research issues in cognitive radio systems utilizing unused frequency bands. In this paper, we propose a novel scheme of selecting sensing channel in order to improve the sensing ability of frequency status in cognitive radio ad hoc networks. To fully exploit the sensing ability of each cognitive radio user, we adopt a master for a cluster which is made of several cognitive radio users. By gathering and analyzing the sensing information from cognitive radio users in the cluster, the cooperative sensing is realized. Since the transmission range of a licensed user is limited, it is possible that a master determines different sensing channels to each cognitive radio users based on their location. By making cognitive radio users sense different channels, the proposed scheme can recognize the state of wireless spectrum fast and precisely. Using the simulation, we compare the performance of the proposed scheme with those of two different compared schemes that one makes cognitive radio users recognize the frequency status based on their own sensing results and the other shares frequency status information but does not utilize the location information of licensed user. Simulation results show that the proposed scheme provides available channels as many as possible while detecting the activation of licensed user immediately.
Keywords
cognitive radio systems; licensed user; cognitive radio user; cognition of frequency status;
Citations & Related Records
연도 인용수 순위
  • Reference
1 L. Sydanheimo, M, Keskilammi, and M. Kivikoski, "Performance issues on the wireless 2.4 GHz ISM band in a multisystem environment," IEEE Trans. Consum. Electron., Vol.48, No.3, pp. 638-643, Aug. 2002   DOI   ScienceOn
2 E. Visotsky, S. Kuffner, and R. Peterson, "On collaborative detection of TV transmissions in support of dynamic spectrum sharing," in Proc. IEEE DySpan, Nov. 2005
3 L. Ma, X. Han, and C. Shen, "Dynamic open spectrum sharing MAC protocol for wireless ad hoc networks," in Proc. IEEE DySPAN '05, Nov. 2005
4 S. L. Wu, C. Y. Lin, Y. C. Tseng, and J. P. Sheu, "A new multi-channel MAC protocol with on- demand channel assignment for multi-hop mobile ad hoc networks," in Proc. IEEE I-SPAN '00, Dec. 2000
5 FCC Spectrum Policy Task Force, "FCC Report of the Spectrum Efficiency Working Group," Nov. 2002, http://www.fcc.gov/sptf/files/SEWGFinalReport_ 1.pdf
6 Y. -Z. P. Chen and A. L. Liestman, "Approximating minimum size weakly-connected dominating sets for clustering mobile ad hoc networks," in Proc. ACM MobiHoc '02, June, 2002
7 J. Y. Yu and P. H. J. Chong, "3hBAC (3-hop between adjacent clusterheads): a novel non-overlapping clustering algorithm for mobile ad hoc networks," in Proc. IEEE PACRIM '03, Aug. 2003
8 Shridhar Mubaraq Mishra, Anant Sahai, and Robert W. Brodersen, "Cooperative Sensing among Cognitive Radios," in Proc. IEEE ICC, June 2006
9 S. Haykin, "Cognitive radio: Brain-empowered wireless communications," IEEE J. Sel. Areas Commun., Vol.23, No.2, pp. 201-220, Feb. 2005   DOI   ScienceOn
10 M. Thoppian, S. Venkatesan, R. Prakash, and R. Chandrasekaran, "MAC-layer scheduling in cognitive radio based multi-hop wireless networks," in Proc. IEEE WoWMoM '06, June 2006
11 S. Krishnamurthy, M. Thoppian, S. Venkatesan, and R. Prakash, "Control channel based mac-layer configuration, routing and situation awareness for cognitive radio networks," in Proc. IEEE MILCOM '05, Oct. 2005
12 M. E. Steenstrup, "Opportunistic use of radio- frequency spectrum: a network perspective," in Proc. IEEE DySPAN '05, Nov. 2005
13 D. Datla, R. Rajbanshi, A. M. Wyglinski, and G. J. Mindenm, "Parametric adaptive spectrum sensing framework for dynamic spectrum access networks," in Proc. DySPAN '07, May. 2007
14 D. Cabric, S. M. Mishra, R. W. Brodersen, "Implementation issues in spectrum sensing for cognitive radios," in Proc. IEEE ASILORMAR '04, Nov. 2004