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首页> 外文期刊>Wireless Networks >Adaptive A-MPDU retransmission scheme with two-level frame aggregation compensation for IEEE 802.11n/ac/ad WLANs
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Adaptive A-MPDU retransmission scheme with two-level frame aggregation compensation for IEEE 802.11n/ac/ad WLANs

机译：适用于IEEE 802.11n / ac / ad WLAN的具有两级帧聚合补偿的自适应A-MPDU重传方案

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摘要

The aggregate MAC protocol data unit (A-MPDU) is one of the significant frame aggregation schemes to improve the performance for high-rate IEEE 802.11n/ac/ad wireless local area networks (WLANs). However, the performance of the A-MPDU scheme does not meet the user expectations because the frame length of the retransmitted A-MPDU will be inevitably and sharply reduced due to the effect of the lost subframe on the number of the aggregatable subframes (i.e., the aggregation level). To overcome this problem, an adaptive A-MPDU retransmission scheme with the two-level frame aggregation compensation is proposed. In this scheme, when the aggregation level of the retransmitted A-MPDU frame dramatically decreases, one of the appropriate two-level aggregation strategies is adaptively employed to compensate the length of the retransmitted A-MPDU frames according to the theoretical analysis of the throughput performance for the conventional A-MPDU scheme and two strategies of the two-level aggregate frame respectively. Simulations using ns-3 platform are performed and the results demonstrate that the proposed adaptive A-MPDU retransmission scheme can achieve higher throughput and medium access control (MAC) layer efficiency.
机译：聚合MAC协议数据单元（A-MPDU）是重要的帧聚合方案之一，可以提高高速IEEE 802.11n / ac / ad无线局域网（WLAN）的性能。但是，由于丢失的子帧对可聚合子帧数的影响（例如，A-MPDU方案的性能将不可避免地急剧降低），因此A-MPDU方案的性能无法满足用户的期望。汇总级别）。为了克服这个问题，提出了一种具有两级帧聚合补偿的自适应A-MPDU重传方案。在该方案中，当重传的A-MPDU帧的聚合水平急剧下降时，根据吞吐量性能的理论分析，自适应地采用适当的两级聚合策略之一来补偿重传的A-MPDU帧的长度。分别针对传统的A-MPDU方案和两级聚合帧的两种策略。进行了使用ns-3平台的仿真，结果表明所提出的自适应A-MPDU重传方案可以实现更高的吞吐量和媒体访问控制（MAC）层效率。

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  • 来源
    《Wireless Networks》 |2018年第1期|223-234|共12页
  • 作者

    Liu Jilong; Yao Mingwu; Qiu Zhiliang;

  • 作者单位

    Xidian Univ, Sch Telecommun Engn, State Key Lab Integrated Serv Networks ISN, Xian 710071, Shaanxi, Peoples R China;

    Xidian Univ, Sch Telecommun Engn, State Key Lab Integrated Serv Networks ISN, Xian 710071, Shaanxi, Peoples R China;

    Xidian Univ, Sch Telecommun Engn, State Key Lab Integrated Serv Networks ISN, Xian 710071, Shaanxi, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    802.11n/ac/ad; A-MPDU; Two-level frame aggregation; Aggregation level; Frame length;

    机译：802.11n / ac / ad;A-MPDU;二级帧聚合;聚合级别;帧长;

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