Improving TCP/IP performance over wireless networks
MobiCom '95 Proceedings of the 1st annual international conference on Mobile computing and networking
Implementation and Performance Evaluation of Indirect TCP
IEEE Transactions on Computers - Special issue on mobile computing
Optical burst switching (OBS) - a new paradigm for an optical Internet
Journal of High Speed Networks - Special issue on optical networking
Modeling TCP Reno performance: a simple model and its empirical validation
IEEE/ACM Transactions on Networking (TON)
Chord: A scalable peer-to-peer lookup service for internet applications
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
Analysis of link-level hybrid FEC/ARQ-SR for wireless links and long-lived TCP traffic
Performance Evaluation - Selected papers from the first workshop on modeling and optimization in mobile, ad hoc and wireless networks (WiOpt'2003)
The Anatomy of the Grid: Enabling Scalable Virtual Organizations
International Journal of High Performance Computing Applications
A novel TCP with dynamic Burst-Contention Loss notification over OBS networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
CUBIC: a new TCP-friendly high-speed TCP variant
ACM SIGOPS Operating Systems Review - Research and developments in the Linux kernel
JumpStart: a just-in-time signaling architecture for WDM burst-switched networks
IEEE Communications Magazine
CORD: contention resolution by delay lines
IEEE Journal on Selected Areas in Communications
Absolute QoS differentiation in optical burst-switched networks
IEEE Journal on Selected Areas in Communications
A Complete Framework to Support Controlled Burst Retransmission in Optical Burst Switching Networks
IEEE Journal on Selected Areas in Communications - Part 2
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For optical burst-switched (OBS) networks in which TCP is implemented at a higher layer, the loss of bursts can lead to serious degradation of TCP performance. Due to the bufferless nature of OBS, random burst losses may occur, even at low traffic loads. Consequently, these random burst losses may be mistakenly interpreted by the TCP layer as congestion in the network. The TCP sender will then trigger congestion control mechanisms, thereby reducing TCP throughput unnecessarily. In this paper, we introduce a controlled retransmission scheme in which the bursts lost due to contention in the OBS network are retransmitted at the OBS layer. The OBS retransmission scheme can reduce the burst loss probability in the OBS core network. Also, the OBS retransmission scheme can reduce the probability that the TCP layer falsely detects congestion, thereby improving the TCP throughput. We develop an analytical model for evaluating the burst loss probability in an OBS network that uses a retransmission scheme, and we also analyze TCP throughput when the OBS layer implements burst retransmission. We develop a simulation model to validate the analytical results. Simulation and analytical results show that an OBS layer with controlled burst retransmission provides up to two to three orders of magnitude improvement in TCP throughput over an OBS layer without burst retransmission. This significant improvement is primarily because the TCP layer triggers fewer time-outs when the OBS retransmission scheme is used.