Survey on Sensor Networks
Survey on Sensor Networks
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作者：
Limin Wang
传感器网络的特殊限制对使用它们构成了许多技术挑战。在这项调查中，我们研究了三个领域的问题和现有协议：覆盖，路由和鲁棒性。我们提出了两种类型的覆盖范围问题：确定需要执行主动传感以监视某个区域的传感器节点数量的最小数量；并确定给定传感器网络可以提供的服务质量。虽然传感器网络中的大多数路由协议都是以数据为中心的，但还有其他类型的路由协议，例如层次结构，基于位置和QoS-Aware。我们描述并比较每个组中的几个协议。鲁棒性是传感器网络中的一个重要主题，因为传感器节点容易发生故障，无线通道不可靠。我们提出了几个具有本地维修路由协议的多路路由协议和单路径，这些路由协议是为了从传感器节点崩溃中恢复而提出的。我们还讨论了一些传输层方案，以用于有损无线通道中的可靠数据传输。
The special constraints of sensor networks impose a number of technical challenges for employing them. In this survey, we study the issues and existing protocols in three areas: coverage, routing, and robustness. We present two types of coverage problems: to determine the minimum number of sensor nodes that need to perform active sensing in order to monitor a certain area; and to decide the quality of service that can be provided by a given sensor network. While most routing protocols in sensor networks are data-centric, there are other types of routing protocols as well, such as hierarchical, location-based, and QoS-aware. We describe and compare several protocols in each group. Robustness is an important topic in sensor networks since sensor nodes are prone to failure and wireless channels are unreliable. We present several multi-path routing protocols and single-path with local repair routing protocols, which are proposed for recovering from sensor node crashes. We also discuss some transport layer schemes for reliable data transmission in lossy wireless channels.