Security in wireless sensor networks
Security in wireless sensor networks
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DOI：
10.1002/sec.92
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发表时间：
2009-03
期刊：
影响因子：
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通讯作者：
M. Obaidat;Petros Nicopolitidis;Jung-Shian Li
中科院分区：
文献类型：
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作者：
M. Obaidat;Petros Nicopolitidis;Jung-Shian Li
无线通信网络的最新发展使得低成本、高能效和多功能的无线传感器网络的大规模部署成为可能。许多现实世界的应用已经被部署，其中许多将基于无线传感器网络。这些应用包括地理监测、医疗保健、制造、运输、军事行动、环境监测、工业机器监测和监视系统。无线传感器网络是一种由空间上分散的独立设备组成的无线网络，它借助传感器来仔细观察环境的状况。传感器设备通常尺寸较小，由在设备的CPU上运行的处理子系统、传感器子系统和通信子系统组成。传感器网络是多个传感器的集合，这些传感器利用无线传输来建立通信并形成自组织无线网络。在这样的网络中，每个传感器节点的任务是双重的；该节点应该：(A)收集关于正在观察到的现象的数据(例如地震活动、湿度、火灾探测等)。以及(B)协助将由其他节点捕获的数据路由到称为信宿的特殊节点，该特殊节点可通过诸如因特网或卫星链路之类的骨干网络经由系统管理器来访问。无线传感器网络区别于更一般的自组织网络的典型问题归因于传感器网络的运行环境，可以概括如下：(A)传感器网络节点具有较少的能量存储、计算和通信能力，(B)传感器网络大多是固定的；然而，由于无线传感器网络中频繁的节点故障，而不是自组织网络中节点的移动性，(C)低能耗可能是比性能更关键的指标，因为在大多数情况下，不可能为耗尽的传感器电池补充燃料。由于传感器网络无线通信的本质，面临着许多安全挑战，包括窃听、中间人、欺骗和DDoS。无线传感器网络中的安全问题甚至可能比传统的自组织无线网络中的更大，因为在许多情况下，上述计算和能量消耗限制在无线传感器网络中实现现有的安全解决方案方面构成了障碍。因此，无线传感器网络系统中用于保护机密性、可用性和完整性的安全机制的设计和原型的进展对于传感器应用的成功至关重要。本期《安全与通信网络》特刊的目的是突出无线传感器网络安全领域中的一些最重要的挑战，并提出可能的解决方案。我们希望这一问题将为这一非常活跃和关键的无线传感器网络领域的当前和未来趋势提供有益的参考。
Recent development in wireless communication networks has enabled the large-scale deployment of lowcost, energy efficient, and multi-purpose wireless sensor networks. A lot of real-world applications have been already deployed and many of them will be based on wireless sensor networks. These applications include geographical monitoring, medical care, manufacturing, transportation, military operations, environmental monitoring, industrial machine monitoring, and surveillance systems. A Wireless Sensor Network is a wireless network which consists of spatially scattered independent devices by the help of sensors to considerately observe the conditions of an environment. A sensor device is typically of small size and consists of the processing subsystem running on the device’s CPU, the sensor subsystem, and the communication subsystem. A sensor network is a collection of a number of sensors that utilize wireless transmission in order to establish communication and form an ad-hoc wireless network. Inside such a network the task of each sensor node is dual; the node should:(a) collect data regarding a phenomenon that is being observed (eg seismic activity, humidity, fire detection etc.) and (b) assist in routing of data captured by other nodes to a special node, called the sink, which is accessible via the system manager over a backbone network such as the Internet or a satellite link. The typical issues that differentiate a wireless sensor network from the more general case of an adhoc one are attributed to the operating environment of a sensor network and can be summarized as follows:(a) sensor network nodes have fewer capabilities for energy storage, computation, and communication,(b) sensor networks are mostly stationary; however topology changes do occur due to the frequent node failures in a wireless sensor network as opposed to mobility of nodes in ad hoc networks,(c) low-energy consumption may be an even more critical criterion than performance, as in most cases it is impossible to refuel the depleted batteries of sensors.Due to the nature of wireless communication in sensor networks, many security challenges are faced, including eavesdropping, man-in-the-middle, spoofing, and DDoS. The concern for security in a wireless sensor network can be even bigger than that in a conventional ad hoc wireless network, as in many cases, the aforementioned computational and energy consumption restrictions pose barriers in the implementation of existing security solutions in a wireless sensor network. Thus, advances in the design and prototype of security mechanisms in wireless sensor network systems for protecting the confidentiality, availability, and integrity are crucial for the success of sensor applications. The aim of this special issue of the Journal of Security and Communication Networks is to highlight some of the most important challenges in the area of security in wireless sensor networks and to present possible solutions. We hope that this issue will be a useful reference for current and future trends in this very active and crucial area of wireless sensor networks.