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Dynamic Frame Reconfiguration in LTE TDD Small Cell Networks.

机译：LTE TDD小型蜂窝网络中的动态帧重新配置。

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摘要

Traffic demands of mobile radio networks have been tremendously increasing in the recent years due to the enormous success of smart phones and continuing evolution of their features supporting applications with high data rates. As we are entering the world of Internet of Things (IoT), where everything is connected to each other, from trash bins to cars, these demands are expected to grow much faster. It is foreseen that the mobile data traffic will increase a thousand fold between now and 2020. Heterogeneous networks consisting of low-power small cells underlying the existing macro cells represent the preferred solution to increase the capacity of cellular systems by means of spatial spectrum reuse. Static uplink/downlink time-division duplexing (TDD) configurations of existing networks cannot satisfy the varying traffic patterns of large number of small cells, which vary among cells and over time.;In this dissertation, a novel algorithmic framework for dynamic reconfiguration of TDD frames is proposed for cluster-based small cell networks. The proposed solution is characterized by low algorithmic time complexity which allows for instantaneous network-wise reconfiguration adapting to highly dynamic traffic demands of small cells.;The contribution of this dissertation research lies in the area of resource manage- ment through minimizing the interferences caused by simultaneous transmissions of uplink and downlink sub-frames among nearby small cells. This work is the first to carry out an algorithmic study of the problem of dynamic frame reconfiguration. The developed solutions are novel and hold significant promises as ultra dense small cell deployments are likely to become viable approach on spatial spectrum reuse. The superiority of the proposed solution is demonstrated theoretically and experimentally.
机译：近年来，由于智能电话的巨大成功及其支持高数据速率应用的功能的不断发展，移动无线电网络的流量需求已大大增加。随着我们进入物联网（IoT）的世界，从垃圾桶到汽车，所有事物都相互连接，这些需求预计将以更快的速度增长。可以预见的是，从现在到2020年，移动数据流量将增加一千倍。由现有宏小区下面的低功率小小区组成的异构网络是通过空间频谱复用来提高蜂窝系统容量的首选解决方案。现有网络的静态上下行时分双工（TDD）配置不能满足大量小型小区的业务量变化模式，并且随着时间的流逝而变化。帧被提出用于基于集群的小型小区网络。所提出的解决方案的特点是算法时间复杂度低，可以即时对网络进行实时重新配置，以适应小型小区的高动态流量需求。本论文的研究之处在于通过最小化由网络造成的干扰来进行资源管理。在附近的小小区之间同时传输上行链路和下行链路子帧。这项工作是首次对动态帧重新配置问题进行算法研究。所开发的解决方案是新颖的，并且具有广阔的前景，因为超密集小蜂窝部署可能会成为空间频谱复用的可行方法。理论上和实验上证明了所提出解决方案的优越性。

著录项

  • 作者

    Nguyen, Khanh.;

  • 作者单位

    The George Washington University.;

  • 授予单位 The George Washington University.;
  • 学科 Computer science.
  • 学位 Ph.D.
  • 年度 2015
  • 页码 94 p.
  • 总页数 94
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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