Selective Subspace Interference Alignment for Cognitive Radio Systems 


Vol. 36,  No. 6, pp. 592-600, Jun.  2011


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  Abstract

This paper presents a selective interference alignment for cognitive radio system with spectrum leasing. The proposed method selects users who cause severe interference to other basestations that have required SINR. Since few users are selected to apply subspace interference alignment, the total complexity of the system is not high compared with that of the system who utilizes subspace interference alignment to all users. In addition, all users can transmit without considering interference. The computer simulation shows the proposed method exhibits 350% throughput enhancement at a two cell case, and 400% increase at a three cell case.

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  Cite this article

[IEEE Style]

H. Cho, J. Park, S. Hong, J. Seo, J. Chung, J. Chung, "Selective Subspace Interference Alignment for Cognitive Radio Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 6, pp. 592-600, 2011. DOI: .

[ACM Style]

Hyungweon Cho, Jonghun Park, Sukjin Hong, Jongpil Seo, Jaehak Chung, and Jongmoon Chung. 2011. Selective Subspace Interference Alignment for Cognitive Radio Systems. The Journal of Korean Institute of Communications and Information Sciences, 36, 6, (2011), 592-600. DOI: .

[KICS Style]

Hyungweon Cho, Jonghun Park, Sukjin Hong, Jongpil Seo, Jaehak Chung, Jongmoon Chung, "Selective Subspace Interference Alignment for Cognitive Radio Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 6, pp. 592-600, 6. 2011.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880