4 research outputs found

    Performance study of large block FEC with drop tail for video streaming over the internet

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    This paper, showed an investigation on performance of the large block forward errors correction(FEC) with Drop Tail (DT) queuing policy. FEC is a technique that uses redundant packet to reconstruct the dropped packet, while Drop Tail is the most popular queue management policies used in network routers. Since the Drop Tail mainly depends on the size of the queue buffer to decide on whether to drop a packet or not, the investigation considered simulation settings with varies size of the queue buffer. Results obtained from the simulation experiments show that FEC and queue size affect the performance the network.Consequently, the qualities of multimedia applications are also affected

    Performance study of large block forward error correction with random early detection queue policy

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    In this paper, we report an investigation on performance of the forward error correction (FEC) with random early detection (RED) queuing policy. FEC is a technique that uses redundant packet to reconstruct the dropped packet, while RED is an active queue management algorithm. It monitors the average queue size and drops arriving packets probabilistically, the probability of drop increases as the estimated average queue size grows. In the investigation we consider simulation settings with varies size of the queue buffer.Results obtained from the simulation experiments show that FEC and queue size affect the performance the network. Consequently, the qualities of multimedia applications are also affected

    Impact of large block FEC with different queue sizes of drop tail and RED queue policy on video streaming quality over internet

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    In this paper, we report an investigation on the impact of large block Forward Error Correction (FEC) with Drop Tail (DT) and Random Early Detection (RED) queue policies on network performance and quality of video streaming.FEC is a technique that uses redundant packets to reconstruct dropped packets, while DT and RED are the most popular queue management policies used in network routers.DT mainly depends on the size of the queue buffer to decide on whether to drop a packet or not.RED monitors the average queue size and drops arriving packets probabilistically.The probability of dropping a packet increases as the estimated average queue size grows.In the investigation, we consider simulation settings with varying size of queue buffers.Results obtained from the simulation experiments show that large block FEC and queue size affect the performance the network.Consequently, the qualities of multimedia applications are also affected

    The Interaction of Forward Error Correction and Active Queue Management

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    Télécom R&DNational audienceThe aim of this paper is to study the interaction of a forward error correction (FEC) code combined with the queue management schemes like Drop Tail (DT) and RED. Since RED spreads randomly packet drops, it reduces consecutive losses. This property makes RED compatible a priori with the use of FEC at the packet level.We show, through simulations, that FEC combined with RED may indeed be more efficient than FEC combined with DT. This however depends on several parameters like the number of TCP flows that constitute the background traffic, the FEC block size and the amount of redundancy in a FEC block. We conclude generally that using FEC is more efficient with RED than with DT when the loss rate is small, and a relatively important amount of redundancy and at most a moderate FEC block size is used. On the other hand, the use of DT is more efficient for larger loss rates
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