Performance Enhancement of Fractional Frequency Reuse Using Partially Overlapped Frequency Partition 


Vol. 37,  No. 8, pp. 687-694, Aug.  2012


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  Abstract

In OFDMA-based cellular system, inter-cell interference (ICI) reduces system capacity by aggravating receiving performance of the users located in edge of the cell. Therefore, to mitigate ICI is very important issue in cellular system. To deal with ICI problem, fractional frequency reuse (FFR) is introduced. FFR is an interference management technique. It separates each cell into inner cell and outer cell. Then, it allocates whole system bandwidth to inner cell and different frequency partition to each sector of outer cell. By doing this, outer cell users can ignore interferences from adjacent cells. So, the receiving performance of the cell edge users can be fairly increased. However, using FFR technique has a fatal side effect. In order to use different frequency partition among three sectors of outer cell, they can use only a third of the whole system bandwidth. Then, the reduction of available bandwidth reduces the system throughput directly. To solve this problem, we propose a new FFR method that allocates partially overlapped frequency partition to each sector of outer cell. And then, we suggest a proper overlapping ratio for practical cellular system.

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  Cite this article

[IEEE Style]

S. Yun, D. C. Park, S. C. Kim, "Performance Enhancement of Fractional Frequency Reuse Using Partially Overlapped Frequency Partition," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 8, pp. 687-694, 2012. DOI: .

[ACM Style]

Sangseok Yun, Dong Chan Park, and Suk Chan Kim. 2012. Performance Enhancement of Fractional Frequency Reuse Using Partially Overlapped Frequency Partition. The Journal of Korean Institute of Communications and Information Sciences, 37, 8, (2012), 687-694. DOI: .

[KICS Style]

Sangseok Yun, Dong Chan Park, Suk Chan Kim, "Performance Enhancement of Fractional Frequency Reuse Using Partially Overlapped Frequency Partition," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 8, pp. 687-694, 8. 2012.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880