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Journal Articles Annals of Telecommunications - annales des télécommunications Year : 2020

Time-shift immunity for wireless sensor network based on discrete wavelet packets

Abstract

Wavelet-based Ultra Wide Band communications rely on receiver collecting data simultaneously from many transmitters and without interference thanks to the orthogonality between primitive wavelet packets. Nevertheless, there is a particular case for which the communication fails. Indeed, the time-shift between primitive wavelet packets results in a loss of the orthogonality of these wavelet packets. This paper proposes an asynchronous Impulse Radio-Ultra Wide Band (IR-UWB) transmission suitable in Wireless Sensor networks without any distinction between the transmitters. The originality of the proposed solution is to ensure a time-shift immunity of IR-UWB receivers by finding the unique combination of shifted primitive packets. For this purpose, finding the one zero result of successive subtractions between received and primitive packets is performed. Considering a given wavelet, the proposed solution is able to decode the shifted-mixed primitive packets from multiple transmitters whatever the time-shift between each packets.
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Dates and versions

hal-02967230 , version 1 (14-10-2020)

Identifiers

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Christophe H. Kizil, Camille Diou, Camel Tanougast. Time-shift immunity for wireless sensor network based on discrete wavelet packets. Annals of Telecommunications - annales des télécommunications, 2020, 76, pp.1-17. ⟨10.1007/s12243-020-00778-z⟩. ⟨hal-02967230⟩
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