Channel coding study for ultra-low power wireless design of autonomous sensor works

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Abstract

Ultra-low power wireless design is highly demanded for building up autonomous wireless sensor networks (WSNs) for many application areas. To keep certain quality of service with limited power budget, channel coding techniques can be applied to maintain the robustness and reliability of WSNs. In this paper, suitable channel coding schemes are studied for WSNs based on noncoherent on-off keying modulation. According to theoretical capacity investigations, pulse-position modulation (PPM) and Reed Solomon coded PPM are proposed as channel coding schemes to realize autonomous WSNs in practice. Moreover, to avoid amplitude saturation in the receiver, overlap multi-pulse PPM coding schemes are also studied. Simulation and emulation results both illustrate that the transmit power of sensors can be reduced dramatically by using the proposed schemes in comparison with the uncoded system.
Original languageEnglish
Title of host publicationProceedings of the 32nd WIC Symposium on Information Theory in the Benelux First Joint WIC/IEEE SP Symposium on Information Theory and Signal Processing in the Benelux (WICSP2011), 10-11 May 2011, Brussels
Pages155-162
Publication statusPublished - 2011
Event2011 Symposium on Information Theory and Signal Processing in the Benelux (SITB 2011) - Brussel, Belgium
Duration: 10 May 201111 May 2011
Conference number: 32

Conference

Conference2011 Symposium on Information Theory and Signal Processing in the Benelux (SITB 2011)
Abbreviated titleSITB 2011
Country/TerritoryBelgium
CityBrussel
Period10/05/1111/05/11

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