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Enabling robust and reliable transmission in Internet of Things with multiple gateways

机译：通过多个网关在物联网中实现可靠可靠的传输

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摘要

This paper investigates the robust and reliable transmission problem in Internet of Things (loT) applications, where multiple gateways are deployed. We discover that the reliable routing path with the best link qualities may not always gain the reliable transmission. The main reason is that the majority of existing routing metrics generally do not consider the working state of gateways. And the gateways may significantly reduce the reliability of data transmission at the last hop when they operate at the variable duty cycles (e.g., due to insufficient energy harvesting from ambiance). Last-hop data loss will lead to the inefficient transmission in all previous hops. To address this issue, we propose a novel routing metric ETD (Expected Transmission Direction, ETD), which efficiently selects a proper set of gateways with improved reliability in variable duty-cycled loT through estimating the working state of gateways. Based on ETD, we design an efficient opportunistic routing protocol PoR to ensure reliable data transmission. Our simulations demonstrate the superior performance of PoR. It is shown that PoR achieves over 98% packet delivery ratio even in the worst network setting, with effective load balancing among selected gateways. (C) 2018 Elsevier B.V. All rights reserved.
机译：本文研究了部署了多个网关的物联网（loT）应用程序中强大而可靠的传输问题。我们发现，具有最佳链路质量的可靠路由路径可能并不总是获得可靠的传输。主要原因是大多数现有路由度量标准通常不考虑网关的工作状态。并且，当网关以可变占空比工作时（例如，由于从环境中收集的能量不足），网关可能会大大降低最后一跳数据传输的可靠性。最后一跳的数据丢失将导致所有先前跳中的传输效率低下。为了解决这个问题，我们提出了一种新颖的路由度量ETD（预期的传输方向，ETD），它通过估计网关的工作状态，有效地选择了一组网关，这些网关在可变占空比的loT中具有更高的可靠性。基于ETD，我们设计了一种有效的机会路由协议PoR，以确保可靠的数据传输。我们的仿真证明了PoR的卓越性能。结果表明，即使在最差的网络环境中，PoR仍可实现超过98％的数据包传输率，并在选定的网关之间实现有效的负载平衡。 （C）2018 Elsevier B.V.保留所有权利。

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  • 来源
    《Computer networks》 |2018年第9期|183-199|共17页
  • 作者

    Xu Dan; Jiao Wenli; Yin Zhuang; Wu Bin; Peng Yao; Chen Xiaojiang; Chen Feng; Fang Dingyi;

  • 作者单位

    Northwest Univ, Sch Informat Sci & Technol, Xian, Shaanxi, Peoples R China;

    Northwest Univ, Sch Informat Sci & Technol, Xian, Shaanxi, Peoples R China;

    Northwest Univ, Sch Informat Sci & Technol, Xian, Shaanxi, Peoples R China;

    Tianjin Univ, Sch Comp Sci & Technol, Tianjin, Peoples R China;

    Northwest Univ, Sch Informat Sci & Technol, Xian, Shaanxi, Peoples R China;

    Northwest Univ, Sch Informat Sci & Technol, Xian, Shaanxi, Peoples R China;

    Northwest Univ, Sch Informat Sci & Technol, Xian, Shaanxi, Peoples R China;

    Northwest Univ, Sch Informat Sci & Technol, Xian, Shaanxi, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Internet of Things; Multiple gateways; Variable duty cycle; Routing metric;

    机译：物联网;多个网关;可变占空比;路由度量;

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