Self-Synchronized DS/SS With High Spread Factors for Robust Millimeter-Wave Datalinks

This paper presents direct sequence spread spectrum (DS/SS) datalinks operating at 92-100 GHz with spreading factors up to 100K. Unlike traditional DS/SS datalinks which rely on preamble and cyclic dispreading for synchronization, the reported datalink uses a self-synchronous demodulation scheme, av...

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Bibliographic Details
Published inIEEE transactions on circuits and systems. I, Regular papers Vol. 68; no. 9; pp. 3941 - 3950
Main Authors Tang, Adrian, Huang, Rulin, Virbila, Gabriel, Chang, Mau-Chung Frank
Format Journal Article
LanguageEnglish
Published New York IEEE 01.09.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Bandwidth
Baseband
Chips (electronics)
CMOS
Data links
datalink
Demodulation
Direct-sequence spread-spectrum (DS/SS)
Millimeter waves
millimeter-wave
Optical transmitters
Receivers
self-synchronous
Signal to noise ratio
Spread spectrum
Synchronism
Synchronization
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Summary:This paper presents direct sequence spread spectrum (DS/SS) datalinks operating at 92-100 GHz with spreading factors up to 100K. Unlike traditional DS/SS datalinks which rely on preamble and cyclic dispreading for synchronization, the reported datalink uses a self-synchronous demodulation scheme, avoiding the large hardware complexity associated with exceptionally large spreading factors, and avoiding the difficulties of synchronizing the long de-spreading codes that are applicable to mm-wave systems. A demonstration link chipset is presented operating at 92-100 GHz with a spreading factor of 104K and a spread bandwidth of 6.0 GHz (baseband bandwidth of 56Kb/s) while consuming a total of 425mW.
ISSN:1549-8328
1558-0806
DOI:10.1109/TCSI.2021.3092766