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CP-DSSS: A novel waveform for multiple access in IoT

  • Stephen N. Jenkins
  • , Brent A. Kenney
  • , Arslan J. Majid
  • , Hussein Moradi
  • , Behrouz Farhang-Boroujeny

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

12 Scopus citations

Abstract

Cyclic prefix direct sequence spread spectrum (CP-DSSS) is a novel waveform that positions itself well as a secondary network to relieve the congested wireless spectrum. The underlying structure of CP-DSSS allows for efficient and effective multiaccess capabilities through frequency and time division schemes. The sum-rate capacity of the system is maximized when the spectrum is divided and allocated to users with the best signal-to-noise (SNR) ratio for the given channel slice. We propose an algorithm for dividing and allocating portions of the spectrum to multiple users with the final goal of maximizing the sum-rate capacity of the network. We also propose and develop a precoding/equalization technique that reduces the length of the channel impulse response. This, when used along with a matched filter detector, leads to a noticeable improvement in the sum-rate capacity of the network.

Original languageEnglish
Title of host publication2nd 6G Wireless Summit 2020
Subtitle of host publicationGain Edge for the 6G Era, 6G SUMMIT 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728160474
DOIs
StatePublished - Mar 2020
Event2nd 6G Wireless Summit, 6G SUMMIT 2020 - Levi, Lapland, Finland
Duration: Mar 17 2020Mar 20 2020

Publication series

Name2nd 6G Wireless Summit 2020: Gain Edge for the 6G Era, 6G SUMMIT 2020

Conference

Conference2nd 6G Wireless Summit, 6G SUMMIT 2020
Country/TerritoryFinland
CityLevi, Lapland
Period03/17/2003/20/20

Keywords

  • 5G
  • 6G
  • CP-DSSS
  • Cyclic prefix direct sequence spread spectrum
  • Femtocell
  • IoT
  • LTE
  • mMTC
  • NG-RAN

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