Packet-aware design of slotted WDM optical packet rings

Bogdan Uscumlic (1) , Annie Gravey (2, 3) , Isabella Cerutti (4) , Philippe Gravey (5) , Michel Morvan (5) , Piero Castoldi (4)

1 University of Belgrade [Belgrade]
2 INFO - Département informatique
3 REOP - Réseaux d'opérateurs
4 University of Pisa - Università di Pisa
5 OPT - Département Optique

ECOFRAME is a WDM optical packet ring that offers optical transparency and WDM statistical multiplexing and is a promising solution for the future metropolitan area networks. The optimal design of ECOFRAME ring requires the planning of the resources, i.e., wavelengths and receivers. However, the packet-nature of the ring requires a verification of the stability of the design, i.e., that the queueing delay experienced by the packets in the design is not unbounded. This paper proposes a joint approach for optimally designing the ECOFRAME ring, while ensuring system stability. The packet-aware design (PAD) approach is based on an integer linear programming formulation that accounts for the dynamic performance, by bounding the wavelength utilization. Results show the trade-off between ring cost and dynamic performance. The optimal PAD design incurs an incremental cost of about 30% in order to ensure the stability of the system.

Mots clés: Fairness; MaxWeight; Scheduling; Stability; Optical packet ring

Domaines: Architectures Matérielles [cs.AR]

Bogdan Uscumlic, Annie Gravey, Isabella Cerutti, Philippe Gravey, Michel Morvan, et al.. Packet-aware design of slotted WDM optical packet rings. TELSIKS 2011 : 10th IEEE International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services, Oct 2011, Belgrade, Serbia. pp.285 - 288. ⟨hal-02282370⟩