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In this paper, we propose a resource allocation scheme that limits allocating sub-channels to other cells based on the amount of interference estimated by beacon signals from adjacent cellspsila BSs (base station) to users to reduce the co-channel interference and re-allocates sub-channels to cell-edge users in multi-cell orthogonal frequency division multiplexing access (OFDMA) system. The proposed...
In channel adaptive OFDM A systems, it is important to feed back channel information in a fast, accurate and efficient way to improve the system performance. However, base station requires a large amount of feedback information of channel state information (CSI) in the adaptive channel. In order to reduce the overload of CSI feedback, we propose a feedback scheme which only selects the users scheduled...
We propose a subcarrier allocation scheme for orthogonal frequency division multiple access (OFDMA) system to provide efficient resource allocation mechanism among multiple users by considering traffic based priority to improve the total system bit error rate (BER) and throughput performances in the multipath fading channel. Since most subcarrier allocation schemes allocate subcarriers in better channel...
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