Convergent radio and fibre access architectures using low-energy systems

This paper presents an innovative high-bandwidth access network architecture that offers transparent transport services for fixed and mobile applications. Key to this is the development of a high-functionality, low-energy active remote node (ARN) offering high-speed switching and statistical-multiplexing features for maximal exploitation of available network resources, together with radio, wavelength conversion and legacy systems compatibility. The proposed architecture features an optimized and sophisticated management and control plane, allowing service providers to transparently monitor their connections, so simplifying network management and application interoperability with heterogeneous networks. Although inherently future-proofed, the proposed network platform is also intrinsically compatible with existing PON and wireless access solutions: fixed fibre and radio access, LTE and beyond, and legacy services (CATV and DSL technologies) can all be delivered and managed in an open access environment. In addition, its low-energy and low-cost design offers an environmentally sustainable technology solution, whilst acting as a critical enabler for new smart services, e-society initiatives, and intelligent lifestyle management.