【摘 要】
：
To improve the total throughput of the uplink orthogonal frequency division multiple access system,a low complexity hybrid power distribution (HPD) combined wit
【机 构】
：
School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150080, P.
论文部分内容阅读
To improve the total throughput of the uplink orthogonal frequency division multiple access system,a low complexity hybrid power distribution (HPD) combined with subcarrier allocation scheme is proposed.For the fairness mechanism for the subcarrier,the inter-cell interference is first analyzed to calculate the capacity of the multi-cell.The user selects the subcarrier with the largest channel gain.Based on the above subcarrier allocation scheme,a new kind of HPD scheme is proposed,which adopts the waterfilling-power-distributed scheme and the equal-power-distributed scheme in the cell-boundary and the cellcenter,respectively.Simulation results show that compared with the waterfilling-power-distributed scheme in the whole cell,the proposed HPD scheme decreases the system complexity significantly,meanwhile its capacity is 2％ higher than that of the equal-powerdistributed scheme over the same subcarrier allocation.
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