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首页> 外文期刊>Industrial Informatics, IEEE Transactions on >Physical Layer and Medium Access Control Design in Energy Efficient Sensor Networks: An Overview
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Physical Layer and Medium Access Control Design in Energy Efficient Sensor Networks: An Overview

机译：节能传感器网络中的物理层和介质访问控制设计：概述

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摘要

It is now well expected that low-power sensor networks will soon be deployed for a wide variety of applications. These networks could potentially have millions of nodes spread in complex indoor/outdoor environments. One of the major deployment challenges under such diverse communication environments is providing reliable communication links to those low cost and/or battery-powered sensor nodes. Over the past few years, research in physical (PHY)-layer has demonstrated promising progresses on link reliability and energy efficiency. In modern medium access control (MAC) design, energy efficiency has become one of the key requirements and is still a hot research topic. In this overview, we provide a broad view encompassing both PHY- and MAC-layer techniques in the field of sensor networks with a focus on link reliability and energy efficiency. We review work in systems employing various PHY techniques in spatial diversity, energy efficient modulation, packet recovery, and data fusion, as well as MAC protocols in contention-based duty cycling, contention-free duty cycling, and hybrid duty cycling. The latest developments in cross-layer MAC designs that leverage PHY-layer techniques are presented. We also provide a synopsis of recent development and evolution of sensor network applications in industrial communications.
机译：现在，人们普遍期望低功耗传感器网络将很快被广泛应用。这些网络可能在复杂的室内/室外环境中散布数百万个节点。在这种多样的通信环境下的主要部署挑战之一是提供到那些低成本和/或电池供电的传感器节点的可靠通信链路。在过去的几年中，对物理（PHY）层的研究表明，在链路可靠性和能效方面取得了可喜的进展。在现代媒体访问控制（MAC）设计中，能效已成为关键要求之一，并且仍然是热门的研究主题。在本概述中，我们提供了涵盖传感器网络领域中PHY和MAC层技术的广泛视图，重点是链路可靠性和能效。我们回顾了在空间分集，高能效调制，数据包恢复和数据融合中采用各种PHY技术的系统中的工作，以及基于竞争的占空比，无竞争的占空比和混合占空比的MAC协议。介绍了利用PHY层技术的跨层MAC设计的最新进展。我们还提供了工业通信中传感器网络应用的最新发展和演变的概况。

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