CoCONet: A collision-free container-based core optical network

Electrical-to-optical domain conversions and vice versa (denoted by O/E/O conversions) for each hop in optical core transport networks impose considerable capital and financial overhead on the providers. In this paper, we propose a full-mesh topology driven core network with a central scheduler that handles the task of signaling and coordination among slot transmissions for every hop to eliminate such O/E/O conversions. We introduce the concept of a container as a macro data unit that forms a separate layer in the protocol stack above the optical layer. A FAST centralized scheduling algorithm is proposed based on preemptive scheduling technique that can ensure that there are no collisions between the containers. We also analyze the complexity of this algorithm. Next we design the logical architecture for the core and edge switches following the de-facto policy of moving the complexity to the edge. We also designed a hierarchical architecture for the edge switch and provide the respect...

• Type: Journal
• Year: 2008
• Where: CN
• Authors: Amin R. Mazloom, Preetam Ghosh, Kalyan Basu, Sajal K. Das
• Keywords: Central Scheduler, CN 2008, Electrical-to-optical Domain Conversions, Optical Core Transport