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Analysis and Simulation of the Dynamic Spectrum Allocation Based on Parallel Immune Optimization in Cognitive Wireless Networks

机译:认知无线网络中基于并行免疫优化的动态频谱分配分析与仿真

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摘要

Spectrum allocation is one of the key issues to improve spectrum efficiency and has become the hot topic in the research of cognitive wireless network. This paper discusses the real-time feature and efficiency of dynamic spectrum allocation and presents a new spectrum allocation algorithm based on the master-slave parallel immune optimization model. The algorithm designs a new encoding scheme for the antibody based on the demand for convergence rate and population diversity. For improving the calculating efficiency, the antibody affinity in the population is calculated in multiple computing nodes at the same time. Simulation results show that the algorithm reduces the total spectrum allocation time and can achieve higher network profits. Compared with traditional serial algorithms, the algorithm proposed in this paper has better speedup ratio and parallel efficiency.
机译:频谱分配是提高频谱效率的关键问题之一,已成为认知无线网络研究的热点。本文讨论了动态频谱分配的实时性和效率,并提出了一种基于主从并行免疫优化模型的新频谱分配算法。该算法根据对收敛速度和群体多样性的需求,为抗体设计了一种新的编码方案。为了提高计算效率,可以同时在多个计算节点中计算群体中的抗体亲和力。仿真结果表明,该算法减少了总频谱分配时间,可以实现较高的网络利润。与传统的串行算法相比,本文提出的算法具有更高的加速比和并行效率。

著录项

  • 期刊名称 other
  • 作者

    Wu Huixin; Mo Duo; Li He;

  • 作者单位
  • 年(卷),期 -1(2014),-1
  • 年度 -1
  • 页码 623670
  • 总页数 8
  • 原文格式 PDF
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