Self-adapted algorithm to provide multi-profile bandwidth guarantees in PONs with symmetric and asymmetric traffic load

A novel bandwidth assignment algorithm in Ethernet Passive Optical Networks with different coverage, called DySGAB, is proposed to provide subscriber differentiation. In contrast to algorithms which allocate bandwidth based on fixed weighted factors, DySGAB continuously adapts the bandwidth assignation to fulfill the requirements of all profiles, leading to an outstanding performance. This auto-adjustment, which has not been implemented in any of today’s algorithms, allows the network to evolve automatically to the stipulated values even if they change in real time. As a result, not only does DySGAB ensure the guaranteed bandwidth for every subscriber, but also is independent of the initial bandwidth restrictions, which is an advantageous characteristic for service providers.

[1]  P. Kourtessis,et al.  Full-Service MAC Protocol for Metro-Reach GPONs , 2010, Journal of Lightwave Technology.

[2]  John E. Mitchell,et al.  Architecture to integrate multiple PONs with long reach DWDM backhaul , 2009, IEEE Journal on Selected Areas in Communications.

[3]  Rubén M. Lorenzo,et al.  Adaptive polling algorithm to provide subscriber and service differentiation in a Long-Reach EPON , 2010, Photonic Network Communications.

[4]  Biswanath Mukherjee,et al.  Interleaved Polling with Adaptive Cycle Time (IPACT): A Dynamic Bandwidth Distribution Scheme in an Optical Access Network , 2004, Photonic Network Communications.

[5]  Sudhir S. Dixit,et al.  Dynamic bandwidth allocation for quality-of-service over Ethernet PONs , 2003, IEEE J. Sel. Areas Commun..

[6]  Mário M. Freire,et al.  Ethernet Passive Optical Networks , 2005 .

[7]  Nirwan Ansari,et al.  Bandwidth allocation for multiservice access on EPONs , 2005, IEEE Communications Magazine.

[8]  Chadi Assi,et al.  On the fairness of dynamic bandwidth allocation schemes in Ethernet passive optical networks , 2006, Comput. Commun..

[9]  John E. Mitchell,et al.  Long-Reach Optical Access Technologies , 2007, IEEE Network.

[10]  Biswanath Mukherjee,et al.  Long-reach optical access networks: A survey of research challenges, demonstrations, and bandwidth assignment mechanisms , 2010, IEEE Communications Surveys & Tutorials.

[11]  M.A. Ali,et al.  A novel decentralized ethernet-based PON access architecture for provisioning differentiated QoS , 2004, Journal of Lightwave Technology.

[12]  Martin Reisslein,et al.  Ethernet passive optical network architectures and dynamic bandwidth allocation algorithms , 2008, IEEE Communications Surveys & Tutorials.