Building a Quantum-Resistant Transceiver for High-Speed, Secure Wireless Communication 

The SMARTY Project is advancing secure communications with the development of a quantum-resistant transceiver designed for short-range, high-speed wireless links. This innovation targets edge computing scenarios where fiber connections are unavailable or impractical, and secure, low-latency data exchange is critical. 

Technical Overview: 

Led by TUE, the prototype transceiver operates in the W-band (75–110 GHz) and is designed for chip-to-chip and short-range node communication. A J-band (220–330 GHz) version is also under consideration. 

Target capabilities include: 

  • Data rates up to 10 Gbps (W-band) 
  • Support for OOK, PAM, BPSK, and QPSK modulation 
  • Wireless link distances of 5–10 meters 
  • Encryption based on AES-256 
  • Integration with Smart NICs for hardware-level security 

Architecture & Lab Setup: 

The current laboratory setup supports unidirectional transmission (uplink) via a W-band wireless path, while the downlink remains on fiber. Core components include: 

  • UTC Photodiode for generating high-frequency RF signals through optical beating 
  • Medium Power Amplifier (MPA) and horn antenna for W-band transmission 
  • Envelope Detector (ED) on the receiver side, followed by baseband signal conversion via a Mach-Zehnder Modulator (MZM) 

Although testing is currently conducted with short-range (0.5 m) links using signal generators and oscilloscopes, Longer-range wireless communication (5–10 meters) will be enabled by integrating a Low Noise Amplifier (LNA)

Next phases will involve: 

  • Full bidirectional wireless link setup 
  • Transition to SFP/SFP+ transceivers 
  • Integration into SMARTY’s broader edge AI and secure communication use cases 

This transceiver will support high-throughput, low-latency, and quantum-resilient data links, enabling new architectures for secure field-deployable systems. 

🔗 For technical documentation and updates: https://www.smarty-project.eu 

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