作者
Chiara Maria De Dominicis, Paolo Ferrari, Alessandra Flammini, Emiliano Sisinni
发表日期
2010/9/27
研讨会论文
2010 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control and Communication
页码范围
48-54
出版商
IEEE
简介
This paper deals with the application of the Chirp Spread Spectrum (CSS) modulation for the synchronization of wireless sensors. Chirp modulation is a well known technique for precise localization, originally developed for RADAR applications. When CSS is used for communication purposes, radio frequency pulses are modulated in order to convey also user data. This approach allows for robustness, thanks to processing gain deriving from pulse compression, and for high accuracy estimation of the Time of Arrival of frames. In this paper, the CSS properties have been exploited in order to arrange a robust timestamping mechanism for distributed wireless sensor networks. The proposed system is based on the CSS modulation of the IEEE802.15.4a. Since commercial transceivers do not have synchronization support, the paper is based on a CSS modulation module implemented using a software defined radio …
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CM De Dominicis, P Ferrari, A Flammini, E Sisinni - 2010 IEEE International Symposium on Precision …, 2010