Efficient Usage of Secondary Scramble Code via Optical Repeater in W-CDMA System 


Vol. 34,  No. 8, pp. 731-741, Aug.  2009


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  Abstract

Optical repeater is often installed at the isolated area. Spatial separation makes it possible to reduce the inter-code interference when secondary scrambling codes are used for traffic connected through repeater. In this paper, we propose five secondary scrambling code usage scenarios with the aids of optical repeater to maximize the user capacity. In order to evaluate the performance, dynamic system level simulation is performed. We also propose a base station-repeater switching where each active users can change access points by comparing the channel condition from base station and repeater thorough secondary common pilot channel (S-CPICH) signal to noise-interference ratio (SINR). Moreover, primary-secondary scramble code replacing scheme is proposed which replaces secondary scramble code with primary scramble code when a call using primary scramble code is ended and its corresponding OVSF code is available to users using the secondary scramble code

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  Cite this article

[IEEE Style]

E. S. Jeon, J. H. Park, J. H. Yang, D. K. Kim, "Efficient Usage of Secondary Scramble Code via Optical Repeater in W-CDMA System," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 8, pp. 731-741, 2009. DOI: .

[ACM Style]

Eun Sung Jeon, Jun Hyo Park, Jang Hoon Yang, and Dong Ku Kim. 2009. Efficient Usage of Secondary Scramble Code via Optical Repeater in W-CDMA System. The Journal of Korean Institute of Communications and Information Sciences, 34, 8, (2009), 731-741. DOI: .

[KICS Style]

Eun Sung Jeon, Jun Hyo Park, Jang Hoon Yang, Dong Ku Kim, "Efficient Usage of Secondary Scramble Code via Optical Repeater in W-CDMA System," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 8, pp. 731-741, 8. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880