Instruction-Directed MAC for Efficient Classical Communication in Scalable Multi-Chip Quantum Systems
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912679417872384 |
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| author | Palesi, Maurizio Russo, Enrico Rafique, Hamaad Ascia, Giuseppe Patti, Davide Das, Abhijit Abadal, Sergi |
| author_facet | Palesi, Maurizio Russo, Enrico Rafique, Hamaad Ascia, Giuseppe Patti, Davide Das, Abhijit Abadal, Sergi |
| contents | Scalable quantum computing requires modular multi-chip architectures integrating multiple quantum cores interconnected through quantum-coherent and classical links. The classical communication subsystem is critical for coordinating distributed control operations and supporting quantum protocols such as teleportation. In this work, we consider a realization based on a wireless network-on-chip for implementing classical communication within cryogenic environments. Traditional token-based medium access control (MAC) protocols, however, incur latency penalties due to inefficient token circulation among inactive nodes. We propose the instruction-directed token MAC (ID-MAC), a protocol that leverages the deterministic nature of quantum circuit execution to predefine transmission schedules at compile time. By embedding instruction-level information into the MAC layer, ID-MAC restricts token circulation to active transmitters, thereby improving channel utilization and reducing communication latency. Simulations show that ID-MAC reduces classical communication time by up to 70% and total execution time by up to 30-70%, while also extending effective system coherence. These results highlight ID-MAC as a scalable and efficient MAC solution for future multi-chip quantum architectures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_27273 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Instruction-Directed MAC for Efficient Classical Communication in Scalable Multi-Chip Quantum Systems Palesi, Maurizio Russo, Enrico Rafique, Hamaad Ascia, Giuseppe Patti, Davide Das, Abhijit Abadal, Sergi Quantum Physics Scalable quantum computing requires modular multi-chip architectures integrating multiple quantum cores interconnected through quantum-coherent and classical links. The classical communication subsystem is critical for coordinating distributed control operations and supporting quantum protocols such as teleportation. In this work, we consider a realization based on a wireless network-on-chip for implementing classical communication within cryogenic environments. Traditional token-based medium access control (MAC) protocols, however, incur latency penalties due to inefficient token circulation among inactive nodes. We propose the instruction-directed token MAC (ID-MAC), a protocol that leverages the deterministic nature of quantum circuit execution to predefine transmission schedules at compile time. By embedding instruction-level information into the MAC layer, ID-MAC restricts token circulation to active transmitters, thereby improving channel utilization and reducing communication latency. Simulations show that ID-MAC reduces classical communication time by up to 70% and total execution time by up to 30-70%, while also extending effective system coherence. These results highlight ID-MAC as a scalable and efficient MAC solution for future multi-chip quantum architectures. |
| title | Instruction-Directed MAC for Efficient Classical Communication in Scalable Multi-Chip Quantum Systems |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2510.27273 |