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IEEE 802.11 HCCA for tactile applications

机译：触觉应用的IEEE 802.11 HCCA

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摘要

The Tactile Internet refers to the communication networks that have a closed control loop of tactile input and audio and/or visual feedback. Example applications include telerehabilitation and virtual training. To ensure that these applications have unnoticeable latencies and thus satisfied quality-of-service and quality-of-experience requirements, the Tactile Internet needs to guarantee round-trip latencies of approximately 1-10 ms. Such a stringent requirement cannot be met by today's technologies. In this paper, we investigate the potential of the IEEE 802.11 standards, which is one of the primary wireless solution of household users, to support the Tactile Internet applications. In particular, we analyze the wireless queueing latency from a tactile user device to an access point using one of the latest IEEE 802.11 media access control (MAC) protocols. Based on our model, a close-form expression of the latency is derived and analytical results are compared with simulations. More importantly, our work emphasizes the tradeoff between achievable latency performance and throughput of the MAC reference design. Our model can be used as a guidance to strategically select appropriate HCCA parameters to meet the required latency performance.
机译：触觉互联网是指具有闭合的触觉输入和音频和/或视觉反馈控制回路的通信网络。示例应用程序包括远程康复和虚拟培训。为了确保这些应用程序具有不明显的延迟，从而满足服务质量和体验质量的要求，Tactile Internet需要保证大约1到10 ms的往返延迟。当今的技术无法满足如此严格的要求。在本文中，我们研究了IEEE 802.11标准（它是家庭用户的主要无线解决方案之一）支持触觉Internet应用程序的潜力。特别是，我们使用最新的IEEE 802.11媒体访问控制（MAC）协议之一分析了从触觉用户设备到接入点的无线排队等待时间。基于我们的模型，导出了延迟的近似形式，并将分析结果与仿真进行了比较。更重要的是，我们的工作强调了MAC参考设计的可实现延迟性能和吞吐量之间的权衡。我们的模型可以用作指导，以策略性地选择适当的HCCA参数以满足所需的延迟性能。

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