TCP Libra - a Novel Scheme for Congestion Control
- 技術優勢
- Round trip time fairnessScalability in terms of bandwidthAnd friendliness to legacy TCP
- 技術應用
- TCP Libra has applications in cell phone networks (round trip time fairness and higher speeds) and high speed networks (scalability and friendliness).
- 詳細技術說明
- The invention introduces a new way to increase and decrease the TCP congestion window. The innovation enables the most important properties of the protocol, which are fairness (in the sense of minimum delay fairness), scalability, and friendliness to legacy TCP schemes (i.e. the schemes that are currently used on the internet).
- *Abstract
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Researchers in the Department of Computer Science at UCLA have developed a new TCP scheme which is round-trip-time fair, scalable in terms of network bandwidth, and friendly to legacy TCP schemes for wireless or high speed networks.
- *Principal Investigation
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Name: Mario Gerla
Department:
Name: Gustavo Marfia
Department:
Name: Claudio Palazzi
Department:
Name: Giovanni Pau
Department:
Name: Marco Roccetti
Department:
Name: M. Yahya Sanadidi
Department:
- 其他
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State of Development
The invention has been developed and thoroughly tested in simulation. An implementation is available.
Background
TCP is one of the core protocols of the Internet protocol suite, and TCP congestion control is one of the most important TCP related requests for comments (RFCs) in recent years. Fairness is an important criterion in congestion control such that two flows competing on the same narrow link node but with different propagation delays should achieve the fair share, but this does not happen with the TCP scheme currently deployed on the Internet. Previous TCP congestion control schemes include FAST TCP, which is round-trip-time fair and scalable, but lacks in friendliness to legacy TCP making it unusable realistically; TCP Hybla which has been successfully deployed on satellite networks but proves to be too aggressive and hence unstable when deployed on the internet; and BIC TCP which improves the fairness of some high-speed schemes, but is not as good as the fairness provided by legacy TCP. Regarding wireless networks, standard cell phones do not have a fast transport layer protocol installed, but rather rely on the old TCP Tahoe implementation at the client side, resulting in a lack of speed in 3G and beyond networks. TCP Libra as a fast transport layer protocol is a solution to improving the speed of cell phone networks.
Additional Technologies by these Inventors
- High-Throughput Communication System, Communication Terminal, Session Relay and Communication Protocol
- TCP Westwood with Priorities for Quality of Service Differentiation at the Transport Layer
- Intelligent TCP Congestion Control via Bandwidth Estimation
Tech ID/UC Case
20478/2007-141-0
Related Cases
2007-141-0
- 國家/地區
- 美國
