Agnieszka Chodorek

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ECN-capable TCP-friendly layered multicast mul-timedia delivery combines explicit congestion notifica-tion (ECN) with the TCP-friendly layered multicast scheme. TCP-Friendliness denotes that receiver–driven architecture behaves under congestion like the TCP protocol. Unlike well-known TCP-friendly proto-cols (TFRC, TFMCC, WEBRC), which use TCP(More)
—The TCP-Friendly Rate Control (TFRC) protocol manifests strong equality towards competing TCP or TCP-friendly flows. Although the RFC 3448 suggests that TFRC is suitable for multimedia, this equality is a great disadvantage in the case of transmitting multimedia over the TFRC. The TFRC emulates TCP-like congestion control using the TCP throughput equation.(More)
The BGP is an external routing protocol, i.e. BGP routing is carried out between autonomous systems. In the paper two BGP route selections, concerned with the selection of paths to and from autonomous systems, are described. The question of local-preference, weight, MED and community attributes are also addressed. 1 Prace prezentowane w niniejszym artykule(More)
The common practice in the MPEG video traffic modelling is to split video sequence into I, P and B subsequences and to model the traffic (generated by each subsequence) separately. This frame-oriented decomposition both allows avoiding non-homogeneity of modelling data and lead to linearisation of MPEG video traffic characteristics. In this paper, the(More)
1 Streszczenie. Artykuł przedstawia warstwowy model opisujący ustanawianie sesji WebRTC, uzyskany na podstawie analizy dokumentacji protokołów biorących udział w ustanawianiu sesji oraz kodów źródłowych przeglądarek internetowych. Prezentację modelu zilustrowano przykładami transmisji multimedialnej pomiędzy przeglądarkami WWW oraz pomiędzy przeglądarką a(More)