Reconfigurable AI Data Centers with Terahertz Wireless Communications

Chong Han et al. (arXiv submission) propose a vision for a Terahertz Wireless Data Center (THz-WDC) to enable reconfigurable, energy-efficient AI data centers.

• Main announcement/action: The paper presents the THz-WDC vision and specifies technical requirements including up to 1 Tbps per link, aggregate throughput up to 10 Tbps via spatial multiplexing, sub-50 ns single-hop latency, sub-10 pJ/bit energy efficiency over 20m, and an operating range of 1–100 m; it also outlines enabling technologies such as digital-twin-based orchestration, low-complexity beam manipulation, all-silicon THz transceivers, and low-complexity analog baseband architectures.
• Background and details: The authors provide numerical analysis comparing THz, optical, and copper interconnects to identify distance/throughput regimes where THz outperforms wired links; they discuss applicability to quantum and chiplet-based modular architectures and conclude with a roadmap toward wireless-defined, reconfigurable, and sustainable AI data centers.