Constructing the high-speed, energy-efficient optical spine wanted to help the longer term calls for of 6G networks.
To help the calls for of future 6G functions, our communication networks should take a big leap ahead. Assembly the bold objectives of 6G would require substantial upgrades in how optical networks – people who use gentle to transmit knowledge – are designed and managed. These enhancements embody sooner knowledge switch, decrease latency, higher flexibility, enhanced vitality effectivity, and smarter useful resource allocation powered by AI. This text outlines a brand new strategy developed by the PROTEUS-6G project, which brings collectively key improvements to fulfill these challenges.
Revolutionising community infrastructure connectivity
One of the vital parts of a 6G community is the infrastructure connecting varied elements of the system, significantly the hyperlinks between central hubs and cell websites. PROTEUS-6G introduces a novel connection structure (see Fig. 1) that may higher adapt to fluctuating visitors calls for. On this system, every cell website receives knowledge by way of devoted optical fibres related to a central hub. These hubs can dynamically allocate extra knowledge indicators as wanted. If one website experiences elevated demand, the system can reroute visitors by way of alternate sign paths with out there capability. A number of transmitters collaborate to pick optimum paths and scale back vitality consumption.
photonic filters
This structure adapts methods utilized in fashionable knowledge centres and applies them to cellular community infrastructure. Conventional knowledge centre instruments, nevertheless, can’t deal with the fine-grained changes required on this context. To handle this, PROTEUS-6G employs superior photonic filtering methods – highlighted within the inset of Fig. 1 – to higher management sign transmission and reception. These methods improve community effectivity by directing visitors exactly the place it’s wanted.
Enabling 6G: Vitality-efficient transmission
One other core innovation is the event of simplified, energy-efficient transmitters and receivers. These parts transmit and detect optical indicators with out counting on complicated, power-intensive digital processors. PROTEUS-6G has developed two novel parts that handle indicators optically quite than electronically, leading to sooner and extra environment friendly efficiency. Certainly one of these parts, proven in Fig. 2, can double the information throughput of a single optical channel in comparison with current applied sciences. It achieves this by transmitting two knowledge streams concurrently utilizing each polarisation states of sunshine.

This configuration delivers spectacular speeds – as much as 800 gigabits per second per channel. By aggregating a number of of those channels, the system can obtain over six terabits per second on a single fibre. Such speeds are important for enabling high-performance 6G functions, together with large-scale antenna arrays and boundaryless community methods. Moreover, the receivers are designed to deal with sign distortions and delays, guaranteeing a secure and dependable connection over lengthy distances.
Clever administration: Streamlining community effectivity by way of unified management
Coordinating these varied system parts requires clever administration. Present networks usually separate packet switching and optical path administration, resulting in inefficiencies. As an example, one controller might handle packet routing, whereas one other handles bodily gentle paths. This fragmented management hampers community adaptability.
To resolve this, PROTEUS-6G introduces a unified management platform (see Fig. 3) that integrates each packet and optical administration right into a single, AI-enabled decision-making system. This permits the community to adapt rapidly and intelligently, rerouting visitors and reallocating sources in actual time. The system can handle routing, safety, and high quality of service throughout all layers–from native cell websites to regional hubs – whereas additionally overseeing optical path administration by way of superior photonic gear.

This built-in strategy is essential for supporting rising 6G applied sciences. For instance, fashionable routers should handle subdivided knowledge indicators that journey throughout a number of paths. Solely a unified controller can coordinate this complexity and guarantee environment friendly community operation.
Reworking networks: The way forward for PROTEUS-6G know-how
In abstract, the improvements launched by PROTEUS-6G–new {hardware}, superior sign routing, and centralised management–create a quick, versatile, and energy-efficient transport system tailor-made for 6G. The structure helps next-generation cellular networks, the place a number of antennas collaborate to ship constant protection and the place community parts alter dynamically based mostly on real-time situations. Vitality financial savings are achieved by activating solely the required parts whereas letting idle parts energy down.
Trying forward, future efforts will intention to additional miniaturise and combine these applied sciences. Researchers additionally plan to eradicate digital processing in extra areas and apply AI for higher automation. These developments will make networks extra manageable and much more responsive.
The PROTEUS-6G initiative demonstrates what is feasible when cutting-edge {hardware}, clever software program, and visionary design converge. With continued growth, this strategy can present the spine for the subsequent era of cellular networks, supporting all the pieces from sensible cities to immersive digital experiences.
Please observe, this text can even seem within the twenty third version of our quarterly publication.
