A Multi-hop Relaying Transmission Scheme in Cognitive Radio System 


Vol. 33,  No. 9, pp. 853-866, Sep.  2008


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  Abstract

In this paper, a multi-hop relaying transmission scheme is analyzed regarding its feasibility and potentiality in the IEEE 802.22-based cognitive radio (CR) environment. Shortly, basic design issues are addressed such as relay station (RS) deployment and a frame structure of physical channel to escape inter-hop interference. This paper mainly develops a radio resource management scheme based on spectrum sensing results aggregated from CR secondary nodes and improves the opportunistic spectrum sharing efficiency. In particular, a decision rule about a channel availability is made using a distributed sensing method. Subsequently, spectrum allocation and routing path decision procedures are proposed to establish a link from source to destination with a hop-by-hop manner. Simulation results show that the proposed multi-hop relaying scheme is substantially profitable in CR environments if the number of hops and RS deployment are designed in such a way that the spectrum sharing gain is larger than spectrum division loss which is inherently induced in multi-hop relaying systems.

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  Cite this article

[IEEE Style]

D. Lee, J. Shin, E. Lim, H. Lee, H. Cho, "A Multi-hop Relaying Transmission Scheme in Cognitive Radio System," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 9, pp. 853-866, 2008. DOI: .

[ACM Style]

Dong-Kyu Lee, Jungchae Shin, Euntaek Lim, Hyeonwoo Lee, and Ho-Shin Cho. 2008. A Multi-hop Relaying Transmission Scheme in Cognitive Radio System. The Journal of Korean Institute of Communications and Information Sciences, 33, 9, (2008), 853-866. DOI: .

[KICS Style]

Dong-Kyu Lee, Jungchae Shin, Euntaek Lim, Hyeonwoo Lee, Ho-Shin Cho, "A Multi-hop Relaying Transmission Scheme in Cognitive Radio System," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 9, pp. 853-866, 9. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880