标题: 毫微微蜂巢网路中基于赛局理论之干扰避免分散式动态频谱接取
Game Theoretic Distributed Dynamic Spectrum Access with Interference Avoidance in Femtocell Networks
作者: 蒋沐恩
Chiang, Muh-En
李大嵩
Lee, Ta-Sung
电信工程研究所
关键字: 赛局理论;频谱接取;干扰避免;毫微微蜂巢;game;spectrum access;interference avoidance;femtocell
公开日期: 2012
摘要: 为了满足在毫微微蜂巢网路中(femtocell networks)对于分散式频谱存取的重要要求,吾人利用了贝氏赛局理论(Bayesian game),引入如通道特性或策略空间的先验知识(prior knowledge),提出了一个全新的分散式频谱存取法。为了进一步提升频谱的使用效率,吾人在分散式频谱存取法中加入了分组步骤来提升系统效能,并基于一些自我组织 (self-organizing) 技术来实现动态部分频率重复使用,以避免蜂巢内及蜂巢间干扰。吾人所提出的方法可以使用最少的改变,加入现有长期演进系统(Long Term Evolution; LTE)协定的架构中。根据电脑模拟结果,吾人所提出的方式可适用于频谱存取,并拥有较低的复杂度以及传输耗消。与中央式频谱存取相比,吾人所提出的方法可以达到几乎相同的效能,并超越原有贝氏赛局理论的效能。
To meet the vital distributed spectrum access requirement of femtocell networks, we propose a new decentralized spectrum access scheme, which exploits the Bayesian game, where prior knowledge like characteristics of channel and strategy space are included. In order to further improve spectrum efficiency, we incorporate a group procedure to improve performance and to avoid intra-cell interference. To deal with critical inter-cell interference in femtocell networks, we further exploit some self-organizing (SON) techniques to implement dynamic fractional frequency reuse. Our proposed scheme can be applied to the existing LTE protocol structure with the minimum change. Computer simulations are presented to verify that the proposed scheme is effective for spectrum access with much lower complexity and transmit overhead. The proposed scheme is comparable to the performance of the centralized scheme and outperforms the Bayesian game scheme.
URI: http://140.113.39.130/cdrfb3/record/nctu/#GT070060214
http://hdl.handle.net/11536/72222
显示于类别:Thesis


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