MRR scheduling based cognitive LTE-R eNode B and type of service value priority queue management strategy

Hongyu DENG; Yiming WANG; Cheng WU

doi:10.11959/j.issn.1000-0801.2018165

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MRR scheduling based cognitive LTE-R eNode B and type of service value priority queue management strategy

research and development | 更新时间：2024-06-05

- MRR scheduling based cognitive LTE-R eNode B and type of service value priority queue management strategy
- Telecommunications Science Vol. 34, Issue 6, Pages: 80-90(2018)
- 作者机构：
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- DOI：10.11959/j.issn.1000-0801.2018165
  CLC： TN929
- Published Online：2018-06，
  
  Published：20 June 2018
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Hongyu DENG, Yiming WANG, Cheng WU. MRR scheduling based cognitive LTE-R eNode B and type of service value priority queue management strategy[J]. Telecommunications science, 2018, 34(6): 80-90.
DOI：

Hongyu DENG, Yiming WANG, Cheng WU. MRR scheduling based cognitive LTE-R eNode B and type of service value priority queue management strategy[J]. Telecommunications science, 2018, 34(6): 80-90. DOI： 10.11959/j.issn.1000-0801.2018165.

摘要

利用认知无线电技术在长期演进铁路（LTE-R）通信系统中构建认知无线网络，提出认知 LTE-R 基站网络架构和MRR调度算法，用以提高铁路专网频谱利用率。特别针对单一车载网关中认知LTE-R基站的先入先出队列策略造成次用户的实时业务的时延过大问题，提出基于服务类型值优先的认知LTE-R基站队列管理策略。该策略优先将服务类型值大的分组送出队列，从而达到优先服务实时业务的目的。仿真结果表明，在保障车地正常通信的前提下，构建的认知LTE-R基站能为旅客提供额外互联网接入链路，提高了长期演进铁路通信系统频谱的利用率。此外，基于服务类型值优先的队列管理策略可以有效地减少旅客实时业务的时延。

Abstract

Cognitive radio technology was used to build cognitive radio networks in long-term evolution railway communication systems

and cognitive base station network architecture and MRR scheduling algorithms were proposed to improve the spectrum utilization of railway dedicated networks.In particular

the FIFO policy for cognitive LTE-R base stations in a single vehicle gateway causes excessive delay in real-time services of secondary users

and a cognitive LTE-R base station queue management strategy based on priority of service types was proposed.This strategy gave priority to sending packets with large service type values to the queue

so as to achieve the purpose of prioritizing real-time services.Simulation results show that under the premise of ensuring the normal communication of vehicles

the constructed cognitive base station can provide passengers with additional internet access links

and at the same time

improve the spectrum utilization rate of the LTE-R communication system.In addition

the cognitive base station queue management strategy based on service type value priority can effectively reduce the delay of passenger real-time services.

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references

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