Fast Power and Bit Allocation Based on Water-Filling

JIANG Liu-bing; YANG Chang-yu; LI Zhuo-wei; WEI Hong-lang; XU Teng-fei

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Fast Power and Bit Allocation Based on Water-Filling

更新时间：2026-09-04

- Fast Power and Bit Allocation Based on Water-Filling
- Vol. 31, Issue 3, Pages: 86-88(2014)
- 作者机构：
  
  1. 1 桂林电子科技大学机构信息与通信学院,广西,桂林,541004
  2. 2 耐普罗有限公司工程部,广东,深圳,518114
- 作者简介：
- 基金信息：
- DOI：
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- Published：2014
- 稿件说明：
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蒋留兵, 杨昌昱, 李卓伟, 韦洪浪, 许腾飞. 基于注水原理的快速功率和比特分配算法[J]. 微电子学与计算机, 2014, 31(3): 86-88,93.

JIANG Liu-bing, YANG Chang-yu, LI Zhuo-wei, et al. Fast Power and Bit Allocation Based on Water-Filling[J]. 2014, 31(3): 86-88.
蒋留兵, 杨昌昱, 李卓伟, 韦洪浪, 许腾飞. 基于注水原理的快速功率和比特分配算法[J]. 微电子学与计算机, 2014, 31(3): 86-88,93. DOI：

JIANG Liu-bing, YANG Chang-yu, LI Zhuo-wei, et al. Fast Power and Bit Allocation Based on Water-Filling[J]. 2014, 31(3): 86-88. DOI：

摘要

提出了一种新的基于注水原理的低计算复杂度的快速功率和比特分配算法.在功率最小化问题上，通过对公式的变形和求解，使得问题的求解形式与注水算法一致.利用注水性质快速调整注水线从而移除了复杂的搜索注水线计算，实现了功率最小化快速功率和比特分配算法.仿真结果表明，与已有的算法相比，提出的算法节省了大量的计算时间.

Abstract

Traditional Power Minimization problem need complicated calculation and is not applied in practice very well.To overcome this problem

formulas are transformed and solved

and the solution of Water-Filling can be applied

take advantage of properties of Water-Filling

agilely adjusting Water-Level instead of processing complex Water-Level searching process.Based on Water-Filling algorithm

fast power and bit allocation algorithms in Power Minimization for multi-channel wireless communications are realized.Simulation results shows

compared with existing algorithms

proposed algorithms runs multiple times faster.

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