Video-Centric Network Coding Strategies for 4G Wireless Networks: An Overview

Montpetit, Marie‐José; Médard, Muriel

doi:10.1109/ccnc.2010.5421629

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…For example, the method in [30] is directly applicable to HTTP streaming, which represents the majority of video streaming traffic today. In [84], a strategy for network coding in wireless video transmission has been presented, which uses a variety of coding approaches and adds feedback and device discovery to tailor the coding to the receivers.…”

Section: A Single Unicastmentioning

confidence: 99%

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Network Coding Meets Multimedia: A Review

Magli

Wang

Frossard

et al. 2013

IEEE Trans. Multimedia

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While every network node only relays messages in a traditional communication system, the recent network coding (NC) paradigm proposes to implement simple in-network processing with packet combinations in the nodes. NC extends the concept of "encoding" a message beyond source coding (for compression) and channel coding (for protection against errors and losses). It has been shown to increase network throughput compared to traditional networks implementation, to reduce delay and to provide robustness to transmission errors and network dynamics. These features are so appealing for multimedia applications that they have spurred a large research effort towards the development of multimedia-specific NC techniques. This paper reviews the recent work in NC for multimedia applications and focuses on the techniques that fill the gap between NC theory and practical applications. It outlines the benefits of NC and presents the open challenges in this area. The paper initially focuses on multimedia-specific aspects of network coding, in particular delay, in-network error control, and media-specific error control. These aspects permit to handle varying network conditions as well as client heterogeneity, which are critical to the design and deployment of multimedia systems. After introducing these general concepts, the paper reviews in detail two applications that lend themselves naturally to NC via the cooperation and broadcast models, namely peer-to-peer multimedia streaming and wireless networking.

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Section: A Single Unicastmentioning

confidence: 99%

“…This way, the scheme incurs the cost of the cheaper network, while at the same time achieving the performance of the best network. Approaches based on combining heterogeneous networks intra-session TCP over wireless [30], [84], [85] Multiple Unicast Sessions V.B multihop in the middle, inter-session (e.g. COPE)…”

Section: A Single Unicastmentioning

confidence: 99%

Network Coding Meets Multimedia: A Review

Magli

Wang

Frossard

et al. 2013

IEEE Trans. Multimedia

View full text Add to dashboard Cite

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“…Most existing works based on network coding are designed for robust video transmission system and focus on the application of random linear network coding (RLNC) [14][15][16]. Nguyen et al [14] proposed a scheme on multipath transmit with network coding to meet the demand of high bandwidth for video transmission, but the best strategy proposed does not take into account optimization [17] and the variable quality of service.…”

Section: Existing Work With Network Coding For Video Transmissionmentioning

confidence: 99%

Joint Redundant and Random Network Coding for Robust Video Transmission over Lossy Networks

Zhang

Jing

Tang

et al. 2012

Mobile Information Systems

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Abstract. In this paper a novel unequal packet loss protection scheme R2NC based on low-triangular global coding matrix with ladder-shaped partition is presented, which combines redundant and random network coding for robust H.264/SVC video transmission. Firstly, the error-correcting capabilities of redundant network coding make our scheme resilient to loss. Secondly, the implementation of random network coding at the intermediate nodes with multiple input links can reduce the cost of network bandwidth, thus reducing the end-to-end delay for video transmission. Thirdly, the low-triangular global coding matrix with ladder-shaped partition is maintained throughout the R2NC processes to reduce the impact of global coding matrix's rank deficiency on video transmission and provide unequal erasure protection for H.264/SVC priority layers. The redundant network coding avoids the retransmission of lost packets and improves error-correcting capabilities of lost packets. Based only on the knowledge of the packet loss rates on the output links, the source node and intermediate nodes can make decisions for redundant network coding and random network coding (i.e., how much redundancy to add at this node). However, the redundancy caused by redundant network coding makes the network load increases. In order to improve network throughput, we performed random network coding at the intermediate nodes. Our approach is grounded on the overall distortion of reconstructed video minimization by optimizing the amount of redundancy assigned to each layer. The convex optimization model is constructed under the constraint of network coding and scalable video coding. Experimental results are shown to demonstrate the significant improvement of H.264/SVC video reconstruction quality with R2NC over packet lossy networks.

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