OFDMA系统中线性注水功率分配算法
doi: 10.3724/SP.J.1146.2005.01345
Linear Water-Filling Power Allocation Algorithm in OFDMA System
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摘要: 功率分配是OFDMA系统资源调度中的一个重要研究问题。该文通过寻求快速确定不需分配功率的子载波方法，提出了一种线性注水功率分配算法，运算中不需多次迭代，就可完成功率注水过程。仿真结果表明，该算法的吞吐量逼近迭代注水功率分配算法。
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关键词:
- OFDMA;功率分配;注水
Abstract: Power allocation is an important issue of resource scheduling in OFDMA system. In this paper, an algorithm of linear water-filling power allocation is proposed through searching for a rapid means for confirming the sub-carriers which need not allocate power. It can finish the process of power water-filling without time after time iterative calculation. The simulation results show that the throughput of the proposed algorithm approaches the algorithm of iterated water-filling power allocation. -
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