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An Inter-Cell Interference Estimation Algorithm for Cellular OFDMA Systems  

Rim, Min-Joong (Department of Information and Communication Engineering, Dongguk University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.43, no.10, 2006 , pp. 55-59 More about this Journal
Abstract
In cellular OFDMA(Orthogonal Frequency Division Multiple Access) systems, each subcarrier may suffer from different amount of interferences from neighbor cells. Suppose that it is possible to accurately estimate inter-cell interferences for each subcarrier, the performance can be considerably improved by applying SINR(Signal to Interference and Noise Ratio) weighting. This paper proposes an inter-cell interference estimation method for cellular OFDMA systems. The proposed method extracts amounts of noise and interferencesby eliminating the channel variation effects of pilot symbols caused by frequency offset, timing offset mobile velocity, and delay spread.
Keywords
Inter-Cell Interference; Interference Estimation; SINR Weighting; OFDMA; Cellular;
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