TCP CRAHN: A Transport Control Protocol for Cognitive Radio Ad Hoc Networks

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Networking
Format: PDF
Cognitive Radio (CR) networks allow users to opportunistically transmit in the licensed spectrum bands, as long as the performance of the Primary Users (PUs) of the band is not degraded. Consequently, variation in spectrum availability with time and periodic spectrum sensing undertaken by the CR users have a pronounced effect on the higher layer protocol performance, such as at the transport layer. This paper investigates the limitations of classical TCP new Reno in a CR ad hoc network environment, and proposes TCP CRAHN, a window-based TCP-friendly protocol.
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