Orthogonal Code Sharing and Radio Resource Allocation in Multibeam Satellite Communication Systems 


Vol. 28,  No. 3, pp. 140-150, Mar.  2003


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  Abstract

In this paper, we propose a novel code sharing method for downlink transmission of mobile satellite communication systems using a multibeam geosynchronous-orbit satellite. In the proposed system, spreading codes are shared among downlink beams in order to increase the system capacity. We also propose efficient radio resource and transmit power allocation schemes for the proposed system. Simplified analysis and simulation results on the system capacity show the capacity improvement by the proposed scheme. The simulation results show that the capacity of the proposed system is more than 2 times as large as that of a conventional multibeam satellite system. In the frequency-selective fading channel, the capacity improvement increases as the interference between orthogonal spreading codes decrease.

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  Cite this article

[IEEE Style]

K. Lim, S. Kim, D. Oh, J. Kim, "Orthogonal Code Sharing and Radio Resource Allocation in Multibeam Satellite Communication Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 3, pp. 140-150, 2003. DOI: .

[ACM Style]

Kwang-Jae Lim, Soo-Young Kim, Deock-Gil Oh, and Jae-Moung Kim. 2003. Orthogonal Code Sharing and Radio Resource Allocation in Multibeam Satellite Communication Systems. The Journal of Korean Institute of Communications and Information Sciences, 28, 3, (2003), 140-150. DOI: .

[KICS Style]

Kwang-Jae Lim, Soo-Young Kim, Deock-Gil Oh, Jae-Moung Kim, "Orthogonal Code Sharing and Radio Resource Allocation in Multibeam Satellite Communication Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 3, pp. 140-150, 3. 2003.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880