计算机科学 ›› 2009, Vol. 36 ›› Issue (10): 82-85.

• 计算机网络与信息安全 • 上一篇    下一篇

IDMA系统中基于SNR演进和差分进化的功率优化研究

雷萌,朱光喜,杨永立,谭力   

  1. (华中科技大学电子与信息工程系 武汉 430074);(武汉国家光电实验室 武汉 430074)
  • 出版日期:2018-11-16 发布日期:2018-11-16
  • 基金资助:
    本文受国际科技合作计划项目(2008DFA11630),863基金项目(2008AA01Z204)以及国家自然科学基金项目(60802009)资助

Power Optimization in IDMA with SNR and Differential Evolutions

TASSING Remil, ZHU Guang-xi, YANG Yong-li, TAN Li   

  • Online:2018-11-16 Published:2018-11-16

摘要: 交织多址(IDMA)是一种依靠交织方式来区分多用户的多址接入技术。由于其性能在等功率分配和用户数较多时急剧下降,因此在IDMA系统中功率控制对提高系统性能尤为重要。提出了一种基于遗传算法的新型功率优 化策略,该算法利用差分进化(DE)和SNR演进方法来实现IDMA的功率控制,所得结果与之前线性规划((LP)算法的相当,但是避免了LP算法中需要量化和分组变量以及需要使用步进参数等缺点。

关键词: 交织多址,SNR演进,差分进化(DE),功率优化

Abstract: Interleave Division Multiple Access(IDMA) is a multiple access scheme in which users are separated by the only means of interleavers. However,the performance of IDMA depends on power optimization because equal power repartition significantly deteriorates the performance when the number of users increases. hherefore, we proposed the applacation of the genetic annealing Differential Evolution algorithm to SNR evolution for solving this optimum power allocanon problem. hhc results obtained arc similar to those with Linear Programming but there is no need to quantize orgroup power variables, the decay factor for controlling convergence speed is also not needed.

Key words: Interleave division multiple access, SNR evolution, Differential evolution, Power optimization

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!