Distributed Q-Learning for Interference Mitigation in Self-Organised Femtocell Networks: Synchronous or Asynchronous?

被引：13
|
作者：
Wang, Hong [1 ]
Song, Rongfang [1 ,2 ]
机构：
[1] Nanjing Univ Posts & Telecommun, Coll Telecommun & Informat Engn, Nanjing 210003, Peoples R China
[2] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China
来源：
WIRELESS PERSONAL COMMUNICATIONS | 2013年 / 71卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Femtocell; Interference mitigation; Q-learning; Power allocation;
D O I：
10.1007/s11277-012-0950-6
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Femtocells promise to improve the quality of indoor wireless communications substantially. However, a serious interference problem arises with universal frequency reuse. In this paper, an asynchronous dynamic power allocation among femtocells based on Q-learning is proposed to mitigate the interference in the network. Simulation results show that in the high femtocells density deployment, asynchronous decision-making process has better performance than the synchronous one in terms of both performance degradation of the macrocell and average capacity of femtocells. In addition, it is shown that our method has superiority to smart power control algorithm proposed by 3GPP when femtocell occupation ratio is over 53 %.
引用
收藏
页码：2491 / 2506
页数：16
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