Results 161 to 170 of about 3,235 (205)

TCP-aware Load-Balanced Routing in Optical Burst-Switched (OBS) Networks

OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007
TCP-over-OBS is a promising transport paradigm to support next-generation-Internet. Load-balanced OBS improves loss- performance. We identify the ill-effects of load-balancing on TCP-performance due to false-time-outs and false-triple-duplicates. We propose source-ordering to improve TCP-throughput by three-four times.
Bharat Komatireddy, Deepak Chandran, Vinod M. Vokkarane   +2 more
openaire   +1 more source

Unfairness in TCP performance over lossy optical burst-switched (OBS) networks

2009 IEEE 3rd International Symposium on Advanced Networks and Telecommunication Systems (ANTS), 2009
One of TCP's primary objectives is to provide fairness to all flows competing for resources in a network. Since the popular flavors of TCP were designed to work with electronic packet-switched networks, they behave differently when used over optical burst-switched networks (OBS). In OBS, burst loss occurs due to random contention of data bursts.
Julie Sullivan, Paul Ramos, Vinod M. Vokkarane   +2 more
openaire   +1 more source

Architecture and Performance of A Next-Generation Optical Burst Switch (OBS)

2006 3rd International Conference on Broadband Communications, Networks and Systems, 2006
Optical burst switching (OBS) is a promising technique for next-generation optical switching networks which attempts to address the problem of efficiently allocating resources for bursty traffic. In traditional OBS, an entire burst is discarded when all output wavelengths are engaged at the arrival instant of the burst.
Muhammad T. Anan, Ghulam M. Chaudhry, Driss Benhaddou   +2 more
openaire   +1 more source

Information sharing based optimal routing for optical burst switching (OBS) network

2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference, 2006
We demonstrate the optimal routing scheme to avoid burst contention by sharing the reservation information within neighbor nodes in the OBS network. Our scheme can notably enhance the survivability performance with lower burst contention probability.
null Donghui Gao, null Hanyi Zhang
openaire   +1 more source

The generalized optical burst switching (G-OBS) enabling multi-service converging transport

Digest of the 9th International Conference on Optical Internet (COIN 2010), 2010
How to shrink the gap between the service provision capacity and the QoS requirements of user applications is one of key issues of the naive OBS in multi-service carry environment. This paper extended the concept of optical burst, and proposed a novel OBS architecture (i.e., G-OBS).
null Yang Xiaolong, null Long Keping
openaire   +1 more source

Time Delay Analysis in Wavelength Router Optical Burst Switching (WR-OBS) Networks

Journal of Optical Communications, 2005
The concept of wavelength router optical burst switching (WR-OBS) aims to allow the access of the bandwidth without using wavelength for routing, instead, it provides guaranteed delivery of optical data bursts to the destination. However, there are some inherent wasting times at edge router which influence negatively on some delay sensitive ...
Haider M. AlSabbagh, Jianping Chen, Guiling Wu, Xinwan Li   +3 more
openaire   +1 more source

Link failure restoration in wavelength-routed optical burst switched (WR-OBS) networks

Journal of Lightwave Technology, 2004
WR-OBS survivability against single link failures is studied. WR-OBS failure-compensating scheduling is proposed and analysed in terms of burst blocking probability, burst scheduling delay increment, wavelength over-provisioning and as a function of network physical connectivity.
E. Kozlovski, P. Bayvel
openaire   +1 more source

TCP Over Optical Burst Switching (OBS): To Split or Not To Split?

2008 Proceedings of 17th International Conference on Computer Communications and Networks, 2008
TCP-based applications account for a majority of data traffic in the Internet; thus understanding and improving the performance of TCP over OBS network is critical. In this paper, we identify the ill-effects of implementing TCP over a hybrid network (IP-access and OBS-core).
D. Padmanabhan, R. Bikram, V.M. Vokkarane   +2 more
openaire   +1 more source

Contention Resolution in Optical Burst Switching(OBS)Network : A Time Domain Approach

International Conference on Fibre Optics and Photonics, 2012
An analytical model is developed to evaluate burst loss probability in optical-burst switching(OBS) network by considering the regimes of short and long FDLs. The impact of different node non-idealities on network performance is also estimated.
Manoj K. Dutta, Vinod K. Chaubey
openaire   +1 more source

Analysis of timing parameters in wavelength-routed optical burst-switched (WR-OBS) networks

IEEE/LEOS Summer Topi All-Optical Networking: Existing and Emerging Architecture and Applications/Dynamic Enablers of Next-Generation Optical Communications Systems/Fast Optical Processing in Optical Transmission/VCSEL and Microcavity Lasers., 2003
The relationship between timing parameters in a WR-OBS network architecture is analyzed with respect to packet loss, delay constraints, and network scalability. A novel burst-aggregation scheme provides low latencies even for high traffic loads.
M. Duser, P. Bayvel
openaire   +1 more source