泊松域上基于有限反馈的干扰对齐系统性能分析
发布时间：2019-03-16 17:44
【摘要】：为了满足用户日益增长的数据流量需求,无线网络基站架构正从严格规划的宏基站转变为多个分布式基站.分布式基站的部署位置具有很强的随机性,不同于传统的基于规则的基站部署模型,在泊松域上可随机部署基站,为此,研究了多输入多输出干扰网络中基于有限反馈的干扰对齐系统性能.首先将基站在泊松域上建模成齐次泊松过程,分析了量化后的信道状态信息的相关统计特征,推导了系统的中断概率和网络容量的近似闭合表达式,通过最大化网络容量的下界得到了最优的发射机部署密度参数.仿真结果验证了所推导的表达式能准确地评估基于有限反馈的干扰对齐系统性能.
[Abstract]:In order to meet the increasing demand of data traffic, wireless network base station architecture is changing from strictly planned macro base station to multiple distributed base stations. The location of distributed base station deployment has strong randomness, which is different from the traditional rule-based base station deployment model. It can deploy base station randomly in Poisson domain, so it is different from the traditional rule-based base station deployment model. The performance of interference alignment system based on finite feedback in multi-input multi-output interference networks is studied. Firstly, the base station is modeled as homogeneous Poisson process in Poisson domain. The statistical characteristics of the quantized channel state information are analyzed, and the approximate closed expressions of the system interrupt probability and network capacity are derived. The optimal transmitter deployment density parameters are obtained by maximizing the lower bound of network capacity. The simulation results show that the derived expression can accurately evaluate the performance of the interference alignment system based on finite feedback.
【作者单位】： 北京邮电大学信息与通信工程学院;安庆师范学院计算机与信息学院;
【基金】：国家高技术研究发展计划(863计划)项目(2014AA01A701) 安徽省教育厅基金项目(KJ2013B117)
【分类号】：TN929.5
，
本文编号：2441829
[Abstract]:In order to meet the increasing demand of data traffic, wireless network base station architecture is changing from strictly planned macro base station to multiple distributed base stations. The location of distributed base station deployment has strong randomness, which is different from the traditional rule-based base station deployment model. It can deploy base station randomly in Poisson domain, so it is different from the traditional rule-based base station deployment model. The performance of interference alignment system based on finite feedback in multi-input multi-output interference networks is studied. Firstly, the base station is modeled as homogeneous Poisson process in Poisson domain. The statistical characteristics of the quantized channel state information are analyzed, and the approximate closed expressions of the system interrupt probability and network capacity are derived. The optimal transmitter deployment density parameters are obtained by maximizing the lower bound of network capacity. The simulation results show that the derived expression can accurately evaluate the performance of the interference alignment system based on finite feedback.
【作者单位】： 北京邮电大学信息与通信工程学院;安庆师范学院计算机与信息学院;
【基金】：国家高技术研究发展计划(863计划)项目(2014AA01A701) 安徽省教育厅基金项目(KJ2013B117)
【分类号】：TN929.5
，
本文编号：2441829
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