University of Oulu

P. Rodríguez-Vázquez, M. E. Leinonen, J. Grzyb, N. Tervo, A. Parssinen and U. R. Pfeiffer, "Signal-processing Challenges in Leveraging 100 Gb/s Wireless THz," 2020 2nd 6G Wireless Summit (6G SUMMIT), Levi, Finland, 2020, pp. 1-5, doi: 10.1109/6GSUMMIT49458.2020.9083827

Signal-processing challenges in leveraging 100 Gb/s wireless THz

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Author: Rodríguez-Vázquez, Pedro1; Leinonen, Marko E.2; Grzyb, Janusz1;
Organizations: 1IHCT, University of Wuppertal, Wuppertal, Germany
2ITEE, University of Oulu Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.8 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2020
Publish Date: 2020-06-29


This paper presents a wireless link based on a Tx and a Rx RF front-end module operating at a LO frequency of 230 GHz. The LO frequency generation paths of the Tx and the Rx are driven using two independent and unlocked frequency synthesizers. Due to this operation mode, the Tx LO leakage is down-converted in the Rx, generating a DC modulated tone that, if not properly handled, will prevent the system to operate appropriately. This paper analyses this effect and presents a solution to mitigate this impairment. Applying this, and using a 16-QAM modulation scheme, a maximum data-rate of 80 Gbps with an EVM of 12.5 % was achieved at a 1-meter distance.

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ISBN: 978-1-7281-6047-4
ISBN Print: 978-1-7281-6048-1
Pages: 1 - 5
DOI: 10.1109/6GSUMMIT49458.2020.9083827
Host publication: 2020 2nd 6G Wireless Summit (6G SUMMIT)
Conference: 6G Wireless Summit
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported in part by the Academy of Finland 6Genesis Flagship (grant no. 318927), by the German Research Agency (DFG) within the project Real100G.RF (project no. 236714825), and by the European Commission within the project DOTSEVEN (project no. 316755).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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