Abstract
In this paper, soft Fractional Frequency Reuse (FFR) is considered to reduce the co-channel interference and also guarantee the cell edge users data rate. We apply power control in soft FFR and investigate the system performance. Soft FFR divides whole frequency band into multiple subbands with different kinds of transmission power levels and allocates subband according to SINR of cell users. By controlling allocated powers, we can increase the frequency efficiency by using the whole frequency band and also improve the data rate for the cell edge users remarkably by reducing the co-channel interference. If the throughput requirement for the outer region is small, we decrease the power allocated to the outer region which can save power energy while high overall system throughput is achieved.
This work was supported by National Research Foundation of Korea Grant funded by the Korean Government (2009-0074466) and by the MKE (The Ministry of Knowledge Economy), Korea, under the ITRC (Information Technology Research Center) support program supervised by the NIPA(National IT Industry Promotion Agency (NIPA-2009-(C1090-0902-0005)).
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Kwon, Y.M., Lee, O.K., Lee, J.Y., Chung, M.Y. (2010). Power Control for Soft Fractional Frequency Reuse in OFDMA System. In: Taniar, D., Gervasi, O., Murgante, B., Pardede, E., Apduhan, B.O. (eds) Computational Science and Its Applications – ICCSA 2010. ICCSA 2010. Lecture Notes in Computer Science, vol 6018. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-12179-1_7
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DOI: https://doi.org/10.1007/978-3-642-12179-1_7
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-12178-4
Online ISBN: 978-3-642-12179-1
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