Hyunchul Cha, Young Cheol Kim, I. Choi, B. Yun, Hyun Deok Kim
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引用次数: 2
摘要
介绍了一种利用有线电视网络同轴电缆基础设施的新型传感器网络。传感器网络在没有改变现有基础设施的情况下，利用有线电视网络的同轴电缆(900 mhz频段)的浪费带宽实现。我们通过测量各种数据速率的数据包错误率(PER)来确认传感器网络的性能，并验证了在基础设施中没有由于通过CATV传输而导致的灵敏度下降。当128个传感器节点以256 kb/s的运行数据速率加入传感器网络时，网络坐标节点与传感器节点之间的最大传输距离约为364 m / w。基于有线电视基础设施的传感器网络本质上保证了节点间网络的可靠性和良好的安全性。此外，它不受其他无线服务的干扰，这在室内或建筑物等大规模无线环境中特别有用。
A novel sensor network by using the coaxial cable infrastructure of the CATV network has been demonstrated. The sensor network has been implemented by using the wasted bandwidth of the coaxial cable (900-MHz band) of the CATV network without any change of the existing infrastructure. We have confirmed the performance of the sensor network by measuring the packet error rate (PER) for various data rates and verified that there was no sensitivity degradation due to the transmission over the CATV in frastructure. The maximum transmission distance between the coordinate node and the sensor node of the network was about 364 m w hen 128 sensor nodes were joined the sensor network at the operating data rate of 256 kb/s. The sensor network over the CATV infrastructure inherently guarantees a reliable networking between the nodes with excellent securities. Furthermore it is free from the interferences from other wireless services, which is especially useful in massive wireless environments such as in house or building.
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