Journal of High Speed Networks - Special issue on optical networking
Optical burst switching (OBS) - a new paradigm for an optical Internet
Journal of High Speed Networks - Special issue on optical networking
Enhanced weighted round robin schedulers for accurate bandwidth distribution in packet networks
Computer Networks: The International Journal of Computer and Telecommunications Networking - QoS for IP networks
A simulation study of optical burst switching and access protocols for WDM ring networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Access protocols for an efficient and fair packet-switched IP-over-WDM metro network
Computer Networks: The International Journal of Computer and Telecommunications Networking
Novel Queue-Grouping Based Round-Robin Protocols for Reducing Collision of OBS Ring Networks
ICNS '09 Proceedings of the 2009 Fifth International Conference on Networking and Services
Design and performance evaluation of token-based MAC protocols in WDM burst switched ring networks
ICDCIT'05 Proceedings of the Second international conference on Distributed Computing and Internet Technology
Photonic packet WDM ring networks architecture and performance
IEEE Communications Magazine
An introduction to optical burst switching
IEEE Communications Magazine
Control architecture in optical burst-switched WDM networks
IEEE Journal on Selected Areas in Communications
Efficient burst scheduling algorithms in optical burst-switched networks using geometric techniques
IEEE Journal on Selected Areas in Communications
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Efficient multiple-token-based MAC protocols have been proposed for optical burst-switched (OBS) unidirectional ring networks using a TT-TR-based node architecture in our previous research. However, the unidirectional OBS ring network is difficult to scale to larger networks. As wavelengths accessibilities are dominated by tokens, network performance is restricted by the frequency of capturing a token. If the network is too large, it takes a long time for tokens to rotate. Thus, a destination queue may wait for a long time to be served, which results in large queuing delays and inefficiency of network resource utilization. In order to improve network efficiency and scalability for OBS ring networks using multiple tokens, this work is extended to a bidirectional ring system that uses the tunable transmitter and tunable receiver (TT-TR)-based node architecture with two pairs of transceivers, so that each queue can be served by tokens from both directions. Furthermore, two kinds of node architectures differing in sharing the two pairs of transceivers, either shared or not, are proposed. Then, two MAC protocols considering different queue scheduling algorithms are proposed for the ring network using the proposed node architectures, in order to use the network resources more efficiently. They are improved from general round-robin (GRR) and termed as half-ring round-robin (HfRR) and co-work round-robin (CoRR), respectively. The network performance of the two proposed node architectures and the two proposed MAC protocols for the networks using them as well as the network scalability are evaluated with the OPNET simulator.