Abstract
Femtocells are low-cost and low-power cellular home base stations that connect mobile users to a operator’s network by means of a broadband backhaul. Through this approach, the network operators can extend indoor coverage at a low-cost and reduce the operating cost. However, there exists a co-channel interference between macrocell and femtocells when they use the same frequency band. This co-channel interference causes severe performance degradation of femtocells and macrocell. Therefore, we propose a novel scheme to reduce the co-channel interference to macrocell without performance degradation of femtocells. The proposed scheme avoids the co-channel interference to macrocell users effectively using the SPA antenna which offers 8-directions to control the antenna beam pattern and transmitting power. Performance evaluation results have confirmed that the proposed scheme reduces the co-channel interference by 80% compared to the case using omni-directional antenna.
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Jeong, Y., Kim, H., Kim, BS., Choo, H. (2010). Avoidance of Co-channel Interference Using Switched Parasitic Array Antenna in Femtocell Networks. 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_15
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DOI: https://doi.org/10.1007/978-3-642-12179-1_15
Publisher Name: Springer, Berlin, Heidelberg
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