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In order to improve the performance of existing multicast congestion control algorithm applied to wireless networks, in this paper, a TCP Vegas-like expert-controlled multicast congestion control mechanism (VEMCC) is proposed, which uses a recently proposed TCP Vegas throughput model. In VEMCC, the network congestion state is detected according to network relative queuing delay and packet loss; the...
The Stream Control Transmission Protocol (SCTP) is a new transport layer protocol. Multihoming is one of the most important features in SCTP, which can be used by the data sender to send data to a receiver through different paths. Although SCTP provides support for multihoming, the basic reason for such a provision was to improve reliability of associations. Currently, simultaneous transfer of new...
In order to improve the performance of existing multicast congestion control mechanisms applied to wireless networks, in this paper, we propose an expert-control-based intelligent multicast congestion control mechanism for wireless networks, termed ECMCC. ECMCC detects the network congestion state according to network relative queuing delay and packet loss, feedbacks information to multicast source...
We consider the throughput-delay tradeoff in network coded transmission over erasure broadcast channels. Interested in minimizing decoding delay, we formulate the problem of instantly decodable network coding as an integer linear program and propose algorithms to solve it heuristically. In particular, we investigate channels with memory and propose algorithms that can exploit channel erasure dependence...
TFRC is a transport protocol specifically designed to carry multimedia streams. TFRC does not enable a reliable and in order data delivery services. However TFRC implements a congestion control algorithm which is friendly with TCP. This congestion control relies in a feedback mechanism allowing receivers to communicate to the senders an experienced drop rate. Although the current TFRC RFC states that...
This paper proposes a variation to the classic implementation of automatic repeat request (ARQ) which is particularly suitable for the long delay channels, as can be found, for example, in the underwater environment. The proposed technique, called selective repeat with a second replica ARQ, (SR)2 ARQ, follows the same rationale as selective repeat ARQ, but, upon NACK reception, schedules two retransmissions,...
According to previous studies, the UDLs (user data links) or ISLs (intersatellite links) switch and failure can result in the packet reordering in low Earth orbit (LEO) satellite networks. The packet reordering can severely deteriorate the performance of transmission in LEO satellite networks, especially at very high levels of packet reordering. In order to improve the TCP (transmission control protocol)...
In networks with large latency, feedback about received packets may lag considerably the transmission of the original packets, limiting the feedback's usefulness. Moreover, time duplex constraints may entail that receiving feedback may be costly. In this work, we consider tailoring feedback and coding jointly in such settings to reduce the expected delay for successful in order reception of packets...
Bandwidth reservations established by a node should be reported to all its neighbors and any missed or unrecorded reservation may have negative impact on already established reservations. In this paper we propose a robust reservation protocol (RRP) to tackle these situations.
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