NDLI: Digital linear GFSK demodulator for IoT devices

Content Provider	IET Digital Library
Author	Lopez, Rodrigo Aldana Velasco, Jose Valencia Gandara, Omar Longoria Escalante, Luis Pizano
Abstract	Companies and developers of emerging Internet-of-Things (IoT) technologies consider Bluetooth low-energy (BLE) standard as a strong candidate to be the backbone of wireless IoT devices and support their low-power requirements. Likewise, the BLE has adopted Gaussian frequency shift-keying (GFSK) signalling due to its power and spectral efficiencies, which are the most fundamental performance criteria for modulation schemes. For this reason, it is worthwhile to research and develop transceivers that maintain these advantages and achieve a low-complexity implementation for the digital modulator and demodulator. Different techniques have been proposed for this purpose, such as hardware usage optimisation, efficient pulse shaping and decomposition of the signal. This study presents a novel linear GFSK demodulator which has the following attractive advantages: low complexity, near-optimal performance in the additive white Gaussian noise channel and the possibility of operating with different GFSK modulators (with a nominal modulation index of 0.5) so it could be applied in BLE devices. In addition, the theoretical error probability is obtained and compared with simulation results.
Starting Page	1997
Ending Page	2004
Page Count	8
ISSN	17518628
Volume Number	12
e-ISSN	17518636
Issue Number	Issue 16, Oct (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/12/16
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2018.5040
Journal	IET Communications
Publisher Date	2018-09-07
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Additive White Gaussian Noise Channel AWGN Channel BLE Device BLE Standard Bluetooth Bluetooth Low-energy Standard Demodulator Digital Linear GFSK Demodulator Digital Modulator Discriminators And Mixers Efficient Pulse Shaping Error Statistics Frequency Shift Keying Gaussian Frequency Shift-keying Signalling GFSK Signalling Hardware Usage Optimisation Internet of Things Internet-of-Things Technology Low-power Requirements Modulation Modulation And Coding Method Modulation Scheme Modulator Nominal Modulation Index Power Efficiency Radio Link And Equipment Radio Transceivers Signal Decomposition Spectral Efficiency Statistics Telecommunication Signalling Theoretical Error Probability Wireless IoT Device
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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