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Performance Evaluation of Mission Critical Communications Services over LTE Networks.

机译：LTE网络上的关键任务通信服务的性能评估。

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摘要

The existing Private/Professional Mobile Radio (PMR) technologies designed specifically for Mission Critical Communication (MCC) systems are narrowband and wideband devices, with limited network data capacity in emergency scenarios. They are majorly used to support MCC voice communications and low data rate applications during mission critical operations. However, the need for broadband systems that would support high radio data capacity keep increasing during major incidents and accident scenarios. Because of this, the MCC agencies were attracted by the broadband capabilities of Long Term Evolution (LTE) technology. But, the uplink capacity of LTE- based MCC systems is still a concern. In planning for improved response in emergency situations, there is need to evaluate the performance of LTE-based MCC systems. This will involve quantifying the uplink capacity and quality of service this system will offer. Therefore, this study describes analytical traffic modeling and simulation approach to model LTE-based MCC networks. The network performance is investigated when it is presented with heterogeneous data applications during emergency situations. The relation between the traffic load (video, data, and voice, short messaging) and waiting time is presented. ARENA simulation tool is used to show the throughput, waiting time, and resource utilization to be expected when using LTE-based MCC networks. The simulation results are compared with the analytical and 3GPP models. The results demonstrate that the modeled LTE- based MCC cell provides enough uplink capacity to simultaneously serve up to 10 users; each with traffic less than 3.6 Mbps data on the uplink of the LTE-based MCC network. The results from this study can help the network designers in the implementation of equipment and devices that could support MCC services over LTE networks.
机译：专为关键任务通信（MCC）系统设计的现有专用/专业移动无线电（PMR）技术是窄带和宽带设备，在紧急情况下网络数据容量有限。它们主要用于在关键任务操作期间支持MCC语音通信和低数据速率应用。但是，在重大事件和事故场景下，对支持高无线电数据容量的宽带系统的需求不断增加。因此，MCC机构被长期演进（LTE）技术的宽带功能所吸引。但是，基于LTE的MCC系统的上行链路容量仍然值得关注。在计划紧急情况下的改善响应时，需要评估基于LTE的MCC系统的性能。这将涉及量化该系统将提供的上行链路容量和服务质量。因此，本研究描述了分析流量建模和仿真方法，以对基于LTE的MCC网络进行建模。在紧急情况下使用异构数据应用程序呈现网络性能时，将对其进行调查。介绍了流量负载（视频，数据和语音，短消息）与等待时间之间的关系。 ARENA仿真工具用于显示使用基于LTE的MCC网络时的吞吐量，等待时间和资源利用率。仿真结果与解析模型和3GPP模型进行了比较。结果表明，基于LTE的建模MCC小区可提供足够的上行链路容量，以同时服务多达10个用户。在基于LTE的MCC网络的上行链路中，每个流量的数据流量均小于3.6 Mbps。这项研究的结果可以帮助网络设计人员实现可以支持LTE网络上的MCC服务的设备和装置。

著录项

  • 作者

    Olasupo, Kehinde Olumide.;

  • 作者单位

    Florida Institute of Technology.;

  • 授予单位 Florida Institute of Technology.;
  • 学科 Electrical engineering.
  • 学位 Ph.D.
  • 年度 2017
  • 页码 160 p.
  • 总页数 160
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 农学（农艺学）;
  • 关键词

  • 入库时间 2022-08-17 11:38:40

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