A cross-correlation sub-sampling receiver for low power applications in a low SINR environment

Mina Raafat Mitry Mikhael, Mark Stefan Oude Alink, Andre B.J. Kokkeler

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    2 Citations (Scopus)
    127 Downloads (Pure)

    Abstract

    Wireless sensor networks have recently emerged in a wide range of applications. Many attributes are essential for such networks such as: low cost, small form-factor, limited peak power consumption and the ability to operate in harsh interference scenarios. Most of these networks do not require high data-rates to operate. In this respect, sub-sampling receivers have shown promising results but suffer from noise folding and interference aliasing. In this paper, a sub-sampling receiver in combination with cross-correlation is used to enhance sensitivity and interference robustness while maintaining the sub-sampling advantages. An architecture which uses two different sampling frequencies is proposed. It shows ∼2dB SNR improvement compared to traditional architectures due to cross-correlation and an additional ∼2dB for each doubling of integrations. For a BER of 10– 3 , the required SIR is reduced with 4.5dB, 11.5dB and 14.5dB after using cross-correlation with the same, half and quarter data-rate used respectively. These improvements allow for a lower-power and lower-cost implementation.
    Original languageEnglish
    Title of host publication2018 IEEE 9th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON)
    PublisherIEEE
    Pages1108
    Number of pages1112
    ISBN (Electronic)978-1-5386-7266-2
    ISBN (Print)978-1-5386-7267-9
    DOIs
    Publication statusPublished - 1 Nov 2018

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