Feasibility Study of Providing Backward Compatibility with MPTCP to WiGig/IEEE 802.11ad
Feasibility Study of Providing Backward Compatibility with MPTCP to WiGig/IEEE 802.11ad
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为 WiGig/IEEE 802.11ad 提供 MPTCP 向后兼容性的可行性研究
DOI：
10.1109/vtcfall.2017.8288189
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
F. Kojima
中科院分区：
文献类型：
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作者：
K. Nguyen;M. G. Kibria;K. Ishizu;F. Kojima
为了使WiGig/IEEE 802.11ad与传统Wi-Fi向后兼容，能够进行WiGig和Wi-Fi的多频带设备必须配备WiGig和Wi-Fi链路之间的快速切换的功能。期望尽可能快地完成切换动作，以便最小化对正在进行的应用的负面影响。IEEE 802.11ad标准定义了快速会话传输（FST）协议范围内的交换操作。为了正确运行FST，设备需要额外的第2层实体，同时管理多个无线电的PHY/MAC状态。尽管引入WiGig无线电是一项微不足道的任务，但不幸的是，在现有的传统Wi-Fi网络上安装这些实体却是一项具有挑战性的任务。这项工作提出了一个实验的可行性研究，实现向后兼容性没有FST。对多径传输控制协议（MPTCP）的可行性进行了初步分析。然后，我们建立了一个真实的测试平台，并评估MPTCP的不同操作模式，旨在找到最合适的模式。我们的实验结果表明，多千兆WiGig和传统的Wi-Fi链路之间的快速切换是可以实现的MPTCP的备份模式。
To make WiGig/IEEE 802.11ad backward compatible with the legacy Wi-Fi, a multi-band device that is capable of WiGig and Wi-Fi is necessarily equipped a function of fast switchover between the WiGig and Wi-Fi link. It is expected that the switching action is done as quickly as possible in order to minimize negative effects on an ongoing application. The IEEE 802.11ad standard defines the switching operation within the scope of fast session transfer (FST) protocol. To properly run FST, the device needs extra layer-2 entities that simultaneously manage the PHY/MAC states of multiple radios. Although introducing WiGig radios is a trivial task, installing those entities on an existing legacy Wi-Fi network is unfortunately a challenging one. This work presents an experimental feasibility study of achieving the backward compatibility without FST. We initially analyze the feasible capability of multipath transmission control protocol (MPTCP). We then setup a real- world testbed and evaluate different operational modes of MPTCP, aiming to find the most suitable one. Our experimental results show that the fast switchover between a multi-Gigabit WiGig and a legacy Wi-Fi link is achievable with the MPTCP's backup mode.