2022年无线传感器网络试卷A .pdf
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1、中国矿业大学2012-2013 学年第一学期无线传感器网络试卷(A 卷)(考试时间:100 分钟闭卷)班级:姓名:序号:成绩:注意:请把所有试题的答案填写在后面的答题纸上,否则成绩无效。一、填空题(每空1 分,共 18 分)1. 无线传感器网络的组成模块分为:通信模块、(1)、计算模块、( 2)和电源模块。2.在开阔空间无线信号的发散形状成(3)形。3. 传感器网络的支撑技术包括:( 4)、 ( 5) 、 数据融合、 (6)、(7)。4. 传感器节点通信模块的工作模式有(8) 、(9) 和空闲。5. 传感器节点的能耗主要集中在(10)模块。6. TDOA 测距方法通常采用的信号为:(11)、
2、(12) 。7. 当前传感器网络应用最广的两种通信协议是:(13)、 (14) 。8. 主动反击能力是指网络安全系统能够主动地限制甚至消灭入侵者,为此需要至少具备的能力有:入侵检测能力、(15)、 (16) 。9. ZigBee 主要界定了网络、安全和应用框架层,通常它的网络层支持三种拓扑结构:星型 (Star)结构、(17)、 (18) 。二、名词翻译,把中文名称用英文单词或者短语表示(每小题2 分,共 16 分)1.信标:2.传感器灵敏度:3.邻居节点:4.接收信号强度指示:5.非视线关系:6.测距:7.到达时间:名师资料总结 - - -精品资料欢迎下载 - - - - - - - - -
3、 - - - - - - - - - 名师精心整理 - - - - - - - 第 1 页,共 5 页 - - - - - - - - - 8.定位精度:三、简答题(每小题5 分,共 20 分)1 传感器网络有哪些限制条件?2 无线传感器网络的路由协议具有哪些特点?3 什么是数据融合技术,它在传感器网络中的作用是什么?4 简述传感器网络休眠机制的过程和目的。四、问答计算题(每小题10 分,共 10 分)1. 简述 RSSI 测距原理,和相应的理论依据。五、翻译题(每小题12 分,共 36 分)1Accurate and low-cost sensor localization is a cri
4、tical requirement for the deployment of wireless sensor networks in a wide variety of applications. Low-power wireless sensors may be many hops away from any other sensors with a priori location information. In cooperative localization, sensors work together in a peer-to-peer manner to make measurem
5、ents and then form a map of the network. Various application requirements will influence the design of sensor localization systems. We describe measurement-based statistical models useful to describe time-of-arrival (TOA), angle-of-arrival (AOA), and received-signal-strength (RSS) measurements in wi
6、reless sensor networks.2. As the network uses a hop-by-hop communication, node failure may lead to route failure. In this section ,We will propose multipath routing protocol for the architecture that enables fault tolerance. Though this method the sensing data can be sent from CN to CH reliably. Mul
7、tipath mentioned in this paper does not mean sending the same data on different paths simultaneously but to send the data on another path if the first one fails. As its hard to replace those exhaust nodes, our goal is to trade-off the lifetime of network and data transmission reliability. So the rou
8、ting protocol we launched is called energy-based multipath routing (EBMR) protocol.3. Wireless Sensor Network (WSN) with large redundant nodes is suitable for target tracking because of its high self-organization. However, there still exist several challenges, such as limitation of energy, computing
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