New unified PON-RAN access architecture for 4G LTE networks

Kostas Ramantas, Kyriakos Vlachos, Anastasios N. Bikos, Georgios Ellinas, Antonis Hadjiantonis

Research output: Contribution to journalArticlepeer-review


This work presents a new converged access architecture for LTE mobile backhaul networks. In the proposed architecture, evolved NodeBs (eNBs) are interconnected with local ring-based wavelength-division-multiplexed (WDM) passive optical networks (PONs), which aggregate and efficiently transport traffic to the evolved packet core (EPC). The proposed WDM-PON ring design supports a dynamic setup of virtual circuits for inter-base-station communication, over a dedicated Alan channel. It also supports load balancing, by dynamically reallocating and sharing the capacity of the downstream wavelengths. The reservation mechanism is arbitrated by the optical line terminal, which monitors the traffic imbalances of downstream channels and orchestrates the setup of subwavelength ¿transient flows.¿

Original languageEnglish
Article number6924126
Pages (from-to)890-900
Number of pages11
JournalJournal of Optical Communications and Networking
Issue number10
Publication statusPublished - 1 Oct 2014


  • FiWi
  • Optical burst switching
  • Optical-wireless convergence
  • Passive optical networks (PONs)


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