Optical-code-based optical burst switching networks

One of the major bottlenecks in conventional OBS networks is the processing delay of the control packet at each node. This is due to slow electronics of the node processors. In this paper, first we describe our proposed protocols of ultrafast optical path setup using an OC-labeled control packet. The OC-labeled control packet is sent out from the source node to destination node, in which the routing information is mapped onto OC-labels. At intermediate nodes the control packet is processed on the fly in optical domain, and available wavelengths are reserved for the transmission of the burst, which follows the control packet. Next, we will evaluate the performance of the proposed protocols, compared with conventional ones such as Just-Enough-Time (JET) protocol. Finally, we will present the experimental results, demonstrating the optical path setup using bipolar 8-chip-long OC-labeled control packet.