A New Resource Allocation Technique to Mitigate Co-Channel Interference in Cellular OFDMA Systems 


Vol. 31,  No. 6, pp. 603-610, Jun.  2006


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  Abstract

This paper considers the problem of mitigating CCI(Co-channel Interference) in cellular OFDMA downlink systems. The users in the cell-edge area suffer from large CCIs, and their SINR requirements are hard to be maintained. To guarantee their QoS, we propose a new exclusive sub-carrier allocation and power control algorithm. The performance of the proposed two-step algorithm is simulated in SUI-A path-loss model, and it is compared with that of the conventional algorithm. The simulation results show that the data transmission rate in the cell-edge area was increased by 600Kbps within the same power constraint. The results indicate that with proposed algorithm, the data rate stability can be achieved independently of the user location in the cell.

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  Cite this article

[IEEE Style]

D. Kim, J. Kim, J. Seo, "A New Resource Allocation Technique to Mitigate Co-Channel Interference in Cellular OFDMA Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 6, pp. 603-610, 2006. DOI: .

[ACM Style]

Dai-kwan Kim, Jong-Kyung Kim, and Jong-soo Seo. 2006. A New Resource Allocation Technique to Mitigate Co-Channel Interference in Cellular OFDMA Systems. The Journal of Korean Institute of Communications and Information Sciences, 31, 6, (2006), 603-610. DOI: .

[KICS Style]

Dai-kwan Kim, Jong-Kyung Kim, Jong-soo Seo, "A New Resource Allocation Technique to Mitigate Co-Channel Interference in Cellular OFDMA Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 6, pp. 603-610, 6. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880