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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article A High-Accuracy Nonintrusive Networking Testbed for Wireless Sensor Networks | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010 Article ID 642531 15 pages doi 10.1155 2010 642531 Research Article A High-Accuracy Nonintrusive Networking Testbed for Wireless Sensor Networks Wei Huangfu 1 Limin Sun 1 and Jiangchuan Liu2 1 Institute of Software Chinese Academy of Sciences Beijing 100190 China 2 School of Computing Science Simon Fraser University Burnaby Metro-Vancouver Canada BC V5A 1S6 Correspondence should be addressed to Wei Huangfu david.huangfu@gmail.com Received 15 February 2010 Accepted 7 June 2010 Academic Editor Dan Wang Copyright 2010 Wei Huangfu et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. It becomes increasingly important to obtain the accurate and spontaneous runtime network behavior for further studies on wireless sensor networks. However the existing testbeds cannot appropriately match such requirements. A High-accuracy Nonintrusive Networking Testbed HINT is proposed. In HINT the interconnected chip-level signals are passively captured with auxiliary test boards and the captured data are transferred in additional networks to test server. The test server of HINT collects all the test data and depicts the full network behavior. HINT supports networking test protocol verification performance evaluation and so on. The experiments show that HINT transparently gathers accurate runtime data and does not disturb the spontaneous behavior of sensor networks. HINT is also extendible to different hardware platforms of sensor nodes. Consequently HINT is an upstanding testbed solution for the future fine-grained and experimental studies on the resource-constrained wireless sensor networks. 1. Introduction A wireless sensor network WSN is usually composed of numerous micro low-power autonomous sensor nodes which .
