RoF-DAS架构下具有差错重传的预约式WLAN MAC协议研究

官铮; 熊磊; 贾徭; 何敏; 杨志军

doi:10.11959/j.issn.1000-436x.2020056

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RoF-DAS架构下具有差错重传的预约式WLAN MAC协议研究

学术论文 | 更新时间：2024-06-05

- RoF-DAS架构下具有差错重传的预约式WLAN MAC协议研究
- Research on scheduled WLAN MAC protocol with failure retries on RoF-DAS architecture
- 通信学报 2020年41卷第3期页码：102-111
- 作者机构：
  
  1. 云南大学信息学院，云南昆明 650091
  2. 云南省教育厅教育科学研究院，云南昆明 650223
- 作者简介：
  
  [ "官铮（1982- ），女，云南普洱人，博士，云南大学副教授，主要研究方向为通信网络性能优化、轮询控制系统分析与应用" ]
  [ "熊磊（1992- ），男，四川广元人，云南大学博士生，主要研究方向为轮询系统、无线通信网络、光通信网络技术等" ]
  [ "贾徭（1995- ），女，云南曲靖人，云南大学硕士生，主要研究方向为轮询系统与无线网络" ]
  [ "何敏（1975- ），女，四川宜宾人，博士，云南大学副教授，主要研究方向为轮询控制理论、计算机网络（移动ad hoc网络、无线传感器网络、移动互联网）、物联网、嵌入式系统等" ]
  [ "杨志军（1986- ），男，云南保山人，博士，云南省教育厅研究员，主要研究方向为计算机通信网络、无线通信和轮询系统" ]
- 基金信息：
  
  国家自然科学基金资助项目(61761045);云南省基础应用研究计划基金资助项目(2017FB100)
- DOI：10.11959/j.issn.1000-436x.2020056
  中图分类号： TN914
- 网络出版日期：2020-03，
  
  纸质出版日期：2020-03-25
- 稿件说明：
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官铮, 熊磊, 贾徭, 等. RoF-DAS架构下具有差错重传的预约式WLAN MAC协议研究[J]. 通信学报, 2020,41(3):102-111.

Zheng GUAN, Lei XIONG, Yao JIA, et al. Research on scheduled WLAN MAC protocol with failure retries on RoF-DAS architecture[J]. Journal on communications, 2020, 41(3): 102-111.
官铮, 熊磊, 贾徭, 等. RoF-DAS架构下具有差错重传的预约式WLAN MAC协议研究[J]. 通信学报, 2020,41(3):102-111. DOI： 10.11959/j.issn.1000-436x.2020056.

Zheng GUAN, Lei XIONG, Yao JIA, et al. Research on scheduled WLAN MAC protocol with failure retries on RoF-DAS architecture[J]. Journal on communications, 2020, 41(3): 102-111. DOI： 10.11959/j.issn.1000-436x.2020056.

摘要

为减少控制帧消耗，降低系统接入时延，提出了预约式门限服务轮询接入（SGPA）策略，将站点接入时刻缓存区中的排队数据整合为数据集，对数据集进行统一发送和确认。针对RoF-DAS 架构下WLAN差错重传机制与网络接入性能的定量关系进行分析，建立了具有内部数据的门限服务轮询（IAGP）排队模型，利用轮询系统中内部数据的到达和服务过程描述数据差错重传机制，然后基于马尔可夫链和概率母函数方法推导出站点数据时延性能与重传次数、重传概率等参数的定量关系表达式。仿真实验结果表明，SGPA 与典型 IEEE 802.11 PCF相比有效降低了接入时延；采用IAGP模型对系统时延性能分析的理论计算值与仿真结果一致。该分析模型为非理想信道环境和差错重传机制下的RoF-DAS WLAN网络接入性能分析提供了一种快速评估机制。·

Abstract

Aim to reduce control frames consumption and improve the delay performance

a scheduled gated-service polling access (SGPA) mechanism was proposed

in which the total data packets in the buffer at the polling instant were aggregated into a data set

that was transmitted and acknowledged uniformly.Then

an inner-arrival gated-service polling (IAGP) model was proposed to analyze the quantitative relationship between failure retry mechanism and network access performance of the wireless local area network (WLAN) in RoF-DAS.The failure retry mechanism were modeled as the arrival and service process of inner customers in IAGP.Using the Markov chain and generating function method

the closed-form expressions for the quantitative relationship between delay performance and retrial parameters

such as retry times

and the probability of retransmission

were achieved.The simulation results show that the proposed SGPA can achieve a lower delay than IEEE 802.11

and the theoretical performance evaluation calculated by IAGP are identical with the simulation results

which provides an effective evaluation mechanism for the access performance in RoF-DAS WLAN

with inperfect channel and failure retry mechanism.

关键词

Keywords

references

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