Hybrid approach for a reliable bufferless OBS network with reduced end-to-end delay and burst loss

Abstract

Optical burst switching (OBS) is a very efficient all optical transmission network. But the performance of the network may reduce because of the burst losses. Hence, to eliminate the collision and dropping of packets at the core nodes we have proposed a hybrid approach for a reliable bufferless OBS network known as an enhanced multipath adaptive burst assembly algorithm (EMP-ABAA). In this technique based on the priority and type of users (i.e., regular users with lesser priority and premium users with high priority), data packets are routed efficiently. At the core nodes the relative drop in data packet, delivery ratio, delay and energy consumption is evaluated in comparison with FAHBA approach. From the simulation results, using NS2 simulation, it is observed that the proposed approach outperforms FAHBA approach; hence enhancing the efficiency and reliability of the OBS network with lesser overhead utilisation in the network.