The design philosophy of the DARPA internet protocols
SIGCOMM '88 Symposium proceedings on Communications architectures and protocols
Congestion avoidance and control
SIGCOMM '88 Symposium proceedings on Communications architectures and protocols
Analysis of the increase and decrease algorithms for congestion avoidance in computer networks
Computer Networks and ISDN Systems
A control-theoretic approach to flow control
SIGCOMM '91 Proceedings of the conference on Communications architecture & protocols
Observing TCP dynamics in real networks
SIGCOMM '92 Conference proceedings on Communications architectures & protocols
High performance TCP in ANSNET
ACM SIGCOMM Computer Communication Review
Improving the start-up behavior of a congestion control scheme for TCP
Conference proceedings on Applications, technologies, architectures, and protocols for computer communications
Dummynet: a simple approach to the evaluation of network protocols
ACM SIGCOMM Computer Communication Review
A comparison of mechanisms for improving TCP performance over wireless links
IEEE/ACM Transactions on Networking (TON)
Modeling TCP throughput: a simple model and its empirical validation
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
On estimating end-to-end network path properties
Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
Promoting the use of end-to-end congestion control in the Internet
IEEE/ACM Transactions on Networking (TON)
TCP over wireless with link level error control: analysis and design methodology
IEEE/ACM Transactions on Networking (TON)
Computer networks: a systems approach
Computer networks: a systems approach
Measuring link bandwidths using a deterministic model of packet delay
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
MSWIM '01 Proceedings of the 4th ACM international workshop on Modeling, analysis and simulation of wireless and mobile systems
Difficulties in simulating the internet
IEEE/ACM Transactions on Networking (TON)
Bandwidth tradeoff between TCP and link-level FEC
Computer Networks: The International Journal of Computer and Telecommunications Networking
End-to-end available bandwidth: measurement methodology, dynamics, and relation with TCP throughput
Proceedings of the 2002 conference on Applications, technologies, architectures, and protocols for computer communications
TCP Westwood and Easy RED to Improve Fairness in High-Speed Networks
PIHSN '02 Proceedings of the 7th IFIP/IEEE International Workshop on Protocols for High Speed Networks
End-to-End Bandwidth Estimation for Congestion Control in Packet Networks
QoS-IP 2003 Proceedings of the Second International Workshop on Quality of Service in Multiservice IP Networks
Concurrent multipath communication for real-time traffic
Computer Communications
Towards transport-layer mobility: Evolution of SCTP multihoming
Computer Communications
Performance analysis of high-speed TCP protocols BIC and CUBIC with AQM in lossy networks
CSNA '07 Proceedings of the IASTED International Conference on Communication Systems, Networks, and Applications
Wireless loss-tolerant congestion control protocol based on dynamic AIMD theory
IEEE Wireless Communications
TCP Westwood(+) protocol implementation in ns-3
Proceedings of the 6th International ICST Conference on Simulation Tools and Techniques
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Westwood+ TCP is a sender-side only modification of the classic Tahoe/Reno TCP that has been recently proposed to improve fairness and efficiency of TCP. The key idea of Westwood+ TCP is to perform an end-to-end estimate of the bandwidth available for a TCP connection by properly counting and filtering the stream of ACK packets. This estimate is used to adaptively decrease the congestion window and slow-start threshold after a congestion episode. In this way, Westwood+ TCP substitutes the classic multiplicative decrease paradigm with the adaptive decrease paradigm. In this paper we report experimental results that have been obtained running Linux 2.2.20 implementations of Westwood+, Westwood and Reno TCP to ftp data over an emulated WAN and over Internet connections spanning continental and intercontinental distances. In particular, collected measurements show that the bandwidth estimation algorithm employed by Westwood+ nicely tracks the available bandwidth, whereas the TCP Westwood bandwidth estimation algorithm greatly overestimates the available bandwidth because of ACK compression. Live Internet measurements also show that Westwood+ TCP improves the goodput w.r.t. TCP Reno. Finally, computer simulations using ns-2 have been developed to test Westwood, Westwood+ and Reno in controlled scenarios. These simulations show that Westwood+ improves fairness and goodput w.r.t. Reno.