Title: Hybrid approach for a reliable bufferless OBS network with reduced end-to-end delay and burst loss
Authors: Bharathi Lakshmanan; Sasikala Ramasamy; Srinivasan Alavandar
Addresses: Department of Electronics and Communication Engineering, Excel College of Technology, Komarapalayam – 637303, Tamilnadu, India ' School of Computing Science and Engineering, VIT University, Vellore 632014, Tamilnadu, India ' Department of Electrical and Electronics Engineering, Agni College of Technology, Thalambur-603103, Tamilnadu, Chennai, India
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.
Keywords: optical burst switching; OBS; core nodes; latency; fuzzy logic; routing.
International Journal of Operational Research, 2020 Vol.37 No.2, pp.220 - 244
Received: 10 Oct 2016
Accepted: 09 Feb 2017
Published online: 20 Feb 2020 *