Spread Spectrum Techniques in Wireless Communication
Dias Pereira, J. M.
IEEE Instrumentation and Measurement Magazine Vol. 12, Nº 6, pp. 21 - 24, December, 2009.
ISSN (print): 1094-6969
Scimago Journal Ranking: 0,37 (in 2009)
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This paper gives a summarized overview of spread spectrum techniques that are used nowadays in a large number of applications.
A summarized analysis, in time and frequency domains, for direct sequence, frequency hopping and time hopping spread spectrum techniques of each technique is underlined.
Results of laboratory tests of a ZigBee network will be presented and experimental results compared with theoretical expectations.
In a second part of this paper it will be presented an application of a wireless sensing and actuating system developed by the authors to implement a wireless distributed measurement system for water quality assessment.