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Receiver Sensitivity Improvement for IoT

Authors:
MohammadMahdi Asgharzadeh
Emil Novakov
Ghislaine Maury

Keywords: Synchronization; sensitivity; signal processing; IoT; LPWAN

Abstract:
In this paper, we present two basic communication techniques for Internet of Things (IoT), as well as a new software-based solution to increase the receiver sensitivity and to improve the communication link budget. The methodology and the experimental results are also presented at the end. The complexity of the experimental setup is reduced, but it demonstrates how a simple method may be efficient for very low SNR. We apply the Time Synchronous Averaging (TSA) as a powerful signal processing technique to improve receiver sensibility. This technique is very useful for the constraints which occur during narrow band RF communications. The most important disadvantage of TSA is due to synchronization. To overcome this problem, an innovative signal processing method for synchronization in phase and in frequency is applied. The result of Averaging applied with innovative synchronization method, is the remarkable enhancement in signal detection in the presence of a very strong noise (Signal to Noise ratio near zero). The proposed solution can also be applied on large band transmissions.

Pages: 81 to 84

Copyright: Copyright (c) IARIA, 2018

Publication date: July 22, 2018

Published in: conference

ISSN: 2308-4030

ISBN: 978-1-61208-650-7

Location: Barcelona, Spain

Dates: from July 22, 2018 to July 26, 2018