Implementation of Reconfigurable 149Mbps TDC-Based PPM Transceiver
2024 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit 2024) 2024
Pauls Ēriks Šics, Nikolajs Tihomorskis, Sandis Migla, Jakovs Ratners, Viktors Kurtenoks, Artūrs Āboltiņš

This research is devoted to developing the pulse position modulation (PPM) modem, which utilizes an extremely small 40 ps position width to achieve a theoretical bitrate above 149 Mbps. In this work, we present a PPM modulator, implemented using software-controlled digital delay lines (DDLs) and the demodulator based on the high-precision event timer-based time-to-digital converter (TDC) with streaming capabilities. The versatility of the proposed solution is achieved by relying on software-defined radio (SDR) approach where the majority of modem functions are performed in software running on personal computer (PC) connected to the modem by USB3 interface. Unlike the traditional SDR, the proposed design relies on precise digital-to-time and time-to-digital conversion, which can cope with signals having up to 100 GHz bandwidth. Along with the design description, the use of Consultative Committee for Space Data Systems (CCSDS) standard-compliant Reed-Solomon error correcting code (ECC) for mitigating the timing errors is discussed. Results of laboratory testing of the PPM modem hardware prototype are presented and explained.


Atslēgas vārdi
Ultra wideband communication, Software radio, Free-space optical, Communication systems
DOI
10.1109/EuCNC/6GSummit60053.2024.10597124
Hipersaite
https://ieeexplore.ieee.org/document/10597124

Šics, P., Tihomorskis, N., Migla, S., Ratners, J., Kurtenoks, V., Āboltiņš, A. Implementation of Reconfigurable 149Mbps TDC-Based PPM Transceiver. No: 2024 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit 2024), Beļģija, Antwerp, 3.-6. jūnijs, 2024. Piscataway: IEEE, 2024, 706.-710.lpp. ISBN 979-8-3503-4500-1. e-ISBN 979-8-3503-4499-8. ISSN 2475-6490. e-ISSN 2575-4912. Pieejams: doi:10.1109/EuCNC/6GSummit60053.2024.10597124

Publikācijas valoda
English (en)
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