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In order to reduce the co-frequency interference for multi-cell OFDMA system, a multi-cell dynamic subcarrier allocation scheme was proposed for downlink orthogonal frequency division multiple access (OFDMA) cellular system. The proposed scheme reduces the powers of co-frequency users, which matches access control to maximize the distances between co-frequency subcarriers users. As a result, the proposed...
In order to improve the QoS in the cell edge of broadband cellular systems, we propose to modify the proportional fair (PF) scheduling algorithm in a new way. In the traditional PF algorithm, a beta parameter can be used in the denominator to control the PF ratio. In our method, the beta is dynamically adjusted in a time and user depended basis, taking into account for example, the user's receiving...
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