Multiuser OFDM Adaptive Resource Allocation Based on Differential Evolution Algorithm

Yangkun Zhu; Xinyu Da; Yapu Zhang

doi:10.11959/j.issn.1000-0801.2015003

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Multiuser OFDM Adaptive Resource Allocation Based on Differential Evolution Algorithm

research and development | 更新时间：2024-06-05

- Multiuser OFDM Adaptive Resource Allocation Based on Differential Evolution Algorithm
- Telecommunications Science Vol. 31, Issue 1, Pages: 94-99(2015)
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- DOI：10.11959/j.issn.1000-0801.2015003
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- Published Online：2015-01，
  
  Published：20 January 2015
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Yangkun Zhu, Xinyu Da, Yapu Zhang. Multiuser OFDM Adaptive Resource Allocation Based on Differential Evolution Algorithm[J]. Telecommunications science, 2015, 31(1): 94-99.
DOI：

Yangkun Zhu, Xinyu Da, Yapu Zhang. Multiuser OFDM Adaptive Resource Allocation Based on Differential Evolution Algorithm[J]. Telecommunications science, 2015, 31(1): 94-99. DOI： 10.11959/j.issn.1000-0801.2015003.

摘要

针对多用户正交频分复用系统自适应资源分配问题，提出一种改进的子载波和基于差分进化算法的功率自适应分配算法。该算法首先在均等功率下进行子载波分配，然后通过添加约束条件检测改进步骤，改进差分进化算法，并采用该算法根据设置的兼顾用户公平性与系统容量的目标函数，全局寻优实现用户间的功率分配。仿真结果表明，算法在低算法复杂度及兼顾用户公平性的情况下实现了较高的系统容量提升，证明其有效性。

Abstract

An improved subcarrier and power allocation algorithms based on differential evolution algorithm was proposed for the adaptive resource allocation problem of multiuser orthogonal frequency division multiplexing. Subcarrier allocation was first implemented to distribute the total power uniformly on each subcarrier. Then via adding the step of detecting and improving constraints to improve the differential evolution algorithm and using it to achieve power allocation with a fitness function of the user's fairness and system capacity. Computer simulation results show that the proposed algorithm can achieve high improvement of the system capacity under low complexity and maintaining the fairness among users

the effectiveness of the algorithm was verified.

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references

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