Resources of Passive Optical Networks (PONs) can be shared by a diverse spectrum customers such as residential users, business subscribers, mobile network operators, and service providers. A PON customer rent one or several Network Units (ONUs) from an Infrastructure Service Provider. The ONUs (multi-ONU customer) subject to large spatiotemporal traffic variability, resulting in underutilizatio...

This paper proposes a dynamic bandwidth and bandwidth allocation (DWBA) algorithm for time and wavelength division multiplexing passive optical networks (TWDM PONs). The proposed algorithm saves power by decreasing the number of active wavelengths of a TWDM PON system.

We present an Adaptive Dynamic Bandwidth Allocation algorithm for Passive Optical Networks. We include results of simulation experiments to show the comparison of its performance with other bandwidth allocation algorithms.

We propose a novel optical cloud architecture where IT and Telecom resources are used interchangeably as common infrastructure. Key assets are the MAC controlled passive networks for distributed multiplexing and grooming and a node architecture integrating transmission and switching.

We present a Dynamic Bandwidth Allocation algorithm that supports Service Level Agreements in Ethernet Passive Optical Networks and show that it provides a reliable protection of agreed traffic parameters. We include results of simulation experiments.

We present our proposed designs of optical access architecture based on WDM technology toward new-generation networks for two types of topologies: Single-star (SS) and passive-double-star (PDS). We adopt the concept of WDM-direct which links multiple wavelengths to each optical network unit (ONU). Our proposed architecture based on WDM-direct can achieve more than 10 Gbps access per ONU. Moreov...

The emergence of new services in the cloud computing era has made smooth service migration an important issue in access networks. However, different types of equipment are typically used for the different services due to differences in service requirements. This leads to an increase in not only capital expenditures but also operational expenditures. Here we propose using a service adaptive appr...

With the proliferation of the world-wide-web (WWW), current local and wide area networks can hardly cope with the huge demand for network bandwidth. As a result, there is a world-wide effort in upgrading current networks with highcapacity fiber-optic links that can potentially deliver Tera-bits/sec bandwidth. The Wavelength-Division-Multiplexing (WDM) is an effective technique for utilizing the...

NG-PON systems present optical access infrastructures to support various applications of many service providers. Therefore, some general requirements for NG-PON networks are characterized and specified. The HPON network presents a necessary phase of the future transition from TDM to WDM multiplexing techniques utilized in passive optical networks. Requirements for the HPON are therefore also in...