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In this paper, we propose a new dynamic frequency assignment scheme for femtoCells in OFDMA networks. The femtoCell base stations are small cellular base stations specially designed to improve the poor indoor coverage and increase the system capacity for cellular and wireless broadband networks. However, these femto-base stations cause harmful interference to the macroCells. Therefore, the optimization...
In the idea to create a realistic model of mobility and traffic for the networks of 3rd and 4th generation, we have studied many techniques of modeling and planning. Our choice was for the real network traces exploitation techniques, mainly because compared to other techniques this technique is very adapted to the real modeling. Although this technique is most convenient, it has many disadvantages...
The increasing demand for high data rate services has created an acute requirement for efficient subcarrier assignment and power control algorithms in orthogonal frequency division multiple access (OFDMA) systems. Resource allocation optimization becomes even more constraining in multi-cell OFDMA systems because of the presence of co-channel interference (CCI). In this paper, we mitigate the CCI impact...
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