感測網路架設的實作與研究

在典型的無線感測網路裡，感測資料是透過無線電頻道來傳送。因此，這些無線連結的穩定性，將直接影響資料傳輸的品質。在這篇論文中，我們的動機是要使用最少的感測節點，佈設出一個具可靠性的感測網路。我們研究了：（一）在名為ＢＬ－Ｌｉｖｅ的中規模感測網路測試平台上，無線連結的穩定性；（二）使用連結品質的資訊，去確保網路的架設符合成本效益。對於連結品質，我們指的是封包被接收到的比例。在ＢＬ－Ｌｉｖｅ上經過長達五天，一共三十五次夜以繼日的連結品質偵測後，我們發現到品質在９０％以上或１０％以下的連結，品質上並不會因為時間的不同而有太大的變化。接著我們運用這些連結品質的資訊，去做節點的架設。我們的方法在實驗中顯示，至多可以減少２５％節點數目的需求。

關鍵字

感測網路；網路架設

並列摘要

In a typical wireless sensor network, sensor data is transmitted over RF channels, and the stability of the wireless links directly influences the quality of data dissemination. In this thesis, motivated to deploy a dependable wireless sensor network at minimum cost, we investigate: (1) the stability of wireless links in a mid-scale sensor network testbed, called BL-Live; and (2) the use of link quality information to ensure cost-effective deployment. By link quality, we mean the packet reception rate. After monitoring the link quality of BL-Live 35 times in five days, both day and night, we found that links whose quality is over 90% or less than 10% do not change too much at different times. We then use the information about link quality for node deployment. Our experiment shows that the proposed algorithms can reduce the number of nodes required by as much as 25%.

並列關鍵字

sensor network ； network deployment

參考文獻

[5] Luiz Felipe Perrone, David M. Nicol, A Scalable Simulator for TinyOS Applications, in Proceedings of the 2002 Winter Simulation Conference, WSC, 2002

[9] Emre Ertin, Anish Arora, Rajiv Ramnath, Mikhail Nesterenko, Vinayak Naik, Sandip Bapat, Vinod Kulathumani, Mukundan Sridharan, Hongwei Zhang, Hui Cao, Kansei: A Testbed for Sensing at Scale, in Proceedings of the 4th Symposium on Information Processing in Sensor Networks (IPSN/SPOTS track), 2006

[10] Erik Welsh, Walt Fish, J. Patrick Frantz, GNOMES: A Testbed for Low-Power Heterogeneous Wireless Sensor Networks, IEEE International Symposium on Circuits and Systems (ISCAS), 2003

[14] Volkan Isler, Sampath Kannan, Kostas Daniilidis, Sampling Based Sensor-Network Deployment, in Intelligent Robots and Systems (IROS) 2004

[15] Santosh Kumar, Ten H. Lai, Jozsef Balogh, On k-Coverage in a Mostly Sleeping Sensor Network, in ACM MobiCom’04

國際替代計量

感測網路架設的實作與研究

全文下載

主題瀏覽