On Quality-of-Service Provisioning in IEEE 802.11ax WLANs
On Quality-of-Service Provisioning in IEEE 802.11ax WLANs
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DOI：
10.1109/access.2016.2602281
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发表时间：
2016-01-01
期刊：
影响因子：
3.9
通讯作者：
Chen, Kwang-Cheng
中科院分区：
文献类型：
--
作者：
Deng, Der-Jiunn;Lien, Shao-Yu;Chen, Kwang-Cheng
一项寻求从根本上改进802.11的革命性努力，即IEEE802.11ax，已被批准用于提供下一代无线局域网(WLAN)技术。在无线局域网中，媒体接入控制协议是有效共享公共无线信道并满足多媒体应用的服务质量(Qos)要求的关键组件。随着新的物理层设计和随之而来的新的媒体访问控制功能对服务质量和用户体验提出了更高的要求，本文首先综述了传统802.11中对服务质量的支持。然后，我们总结了正在进行的IEEE 802.11ax标准化活动，并概述了媒体访问控制协议设计的当前前景和预期功能，以更好地支持802.11ax中的服务质量和用户体验。我们介绍了背后的动机，解释了设计原则，并确定了新的研究挑战。为了更好地满足客户对高带宽和低延迟的需求，考虑到蜂窝和无线局域网之间的协作以及5G蜂窝在非许可频段上的趋势，进一步讨论了新兴的长期演进许可辅助接入及其对IEEE 802.11ax中的QoS配置的影响。
A revolutionary effort to seek fundamental improvement of 802.11, known as IEEE 802.11ax, has been approved to deliver the next-generation wireless local area network (WLAN) technologies. In WLANs, medium access control protocol is the key component that enables efficient sharing the common radio channel while satisfying the quality of service (QoS) requirements for multimedia applications. With the new physical layer design and subsequent new medium access control functions under more demands on QoS and user experience, in this paper, we first survey the QoS support in legacy 802.11. Then, we summarize the IEEE 802.11ax standardization activities in progress and present an overview of current perspectives and expected features on medium access control protocol design to better support QoS and user experience in 802.11ax. We present the motivation behind, explain design principles, and identify new research challenges. To better satisfy customer needs on high bandwidth and low latency, emerging long-term evolution licensed-assisted access and its impacts to QoS provisioning in IEEE 802.11ax are further addressed given the collaboration between cellular and WLANs, and given the trend of 5G cellular over unlicensed bands.