Practical Network Coding for scalable video in error prone networks

Halloush, Mohammed; Radha, Hayder

doi:10.1109/pcs.2009.5167427

Cited by 7 publications

(12 citation statements)

References 5 publications

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“…The reason is that it allows retrieving useful layers from more combinations of received transmissions. The authors show that even for a single receiver, the previously proposed even canonical triangular scheme [61,62] for inter-layer network coding can perform poorly, and they propose two simple heuristics to enhance the gain. In triangular network coding, the encoded layers are in the form of ∑ k j=1 α j l j , where 1 ≤ k ≤ h and α j are random coefficients.…”

Section: Intra-session Network Codingmentioning

confidence: 99%

Network Coding Techniques for Wireless and Sensor Networks

Ostovari

Khreishah

2013

The Art of Wireless Sensor Networks

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Network coding is a technique where relay nodes mix packets using mathematical operations, which reduces the number of transmitted packets. Network coding was first proposed for wired networks to solve the bottleneck problem and to increase the throughput. However, the broadcast nature of wireless networks and the diversity of the links make network coding more attractive in wireless networks. Network coding can be classified as either inter or intra-session. Inter-session network coding allows the packets from different sessions (sources) to be mixed to solve the bottleneck problem. In contrast, intra-session network coding, which can be used to address the packet loss problem, uses the diversity of the wireless links and mixes packets from the same sessions. In this chapter, we survey the recent works on network coding in both general wireless networks and wireless sensor networks. We present various network coding techniques, their assumptions, applications, as well as an overview of the proposed methods.

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Section: Intra-session Network Codingmentioning

confidence: 99%

Network Coding Techniques for Wireless and Sensor Networks

Ostovari

Khreishah

2013

The Art of Wireless Sensor Networks

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“…We propose incorporating network coding (NC) [14], [15] into SDC to improve the overall performance. In SDC-NC, the redundancy description, D r , as outlined in Section III, is re-placed by a network coded (NC) description, D r−nc , which is the exclusive disjunction, or XOR, symbolized by ⊕, of all the leading descriptions for a given GOF, D c ⊕ D s in our example.…”

Section: Sdc-nc: Network Coding For Sdcmentioning

confidence: 99%

SDC: Scalable description coding for adaptive streaming media

Quinlan

Zahran

Sreenan

2012

2012 19th International Packet Video Workshop (PV)

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Access to the full text of the published version may require a subscription. Abstract-Video compression techniques enable adaptive media streaming over heterogeneous links to end-devices. Scalable Video Coding (SVC) and Multiple Description Coding (MDC) represent well-known techniques for video compression with distinct characteristics in terms of bandwidth efficiency and resiliency to packet loss. In this paper, we present Scalable Description Coding (SDC), a technique to compromise the tradeoff between bandwidth efficiency and error resiliency without sacrificing userperceived quality. Additionally, we propose a scheme that combines network coding and SDC to further improve the error resiliency. SDC yields upwards of 25% bandwidth savings over MDC. Additionally, our scheme features higher quality for longer durations even at high packet loss rates. Rights

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“…Recently, there have also been a few practical works that demonstrated the effectiveness of combining MRC video streaming with variations of the canonical triangular coding 2 scheme for multihop wireless networks [7], [8]. [7] uses the triangular coding scheme combined with ARQ and a creditbased rate control system but it assumes that each client requests the desired number of layers from the server.…”

Section: Related Workmentioning

confidence: 99%

“…In contrast, in our work, the AP automatically determines the optimal number of layers and the optimal coding strategy for any objective function. In [18], the authors present MultiGeneration Mixing, which is essentially equivalent to the triangular network coding scheme, and in [8], they apply this scheme to MRC video streaming. However, they assume a simple reliability mechanism which spreads a fixed amount of redundant coded packets equally among the K different ways of coding the packets.…”

Section: Related Workmentioning

confidence: 99%

“…Recent practical work [7], [8] that studied this approach have proposed and showed the effectiveness of an even canonical triangular heuristic which essentially evenly splits the total number of transmissions (that can be sent before the deadline) among the K ways of coding the packets, with the ith way being coding packets from the first i layers.…”

Section: Introductionmentioning

confidence: 99%

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Efficient Online WiFi Delivery of Layered-Coding Media Using Inter-layer Network Coding

Koutsonikolas

Wang

et al. 2011

2011 31st International Conference on Distributed Computing Systems

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Abstract-A primary challenge in multicasting video in a wireless LAN to multiple clients is to deal with the client diversity -clients may have different channel characteristics and hence receive different numbers of transmissions from the AP. A promising approach to overcome this problem is to combine multi-resolution (layered) video coding with interlayer network coding. The fundamental challenge in such an approach is to determine the strategy of coding the packets across different layers that maximizes the number of decoded layers at all clients. This paper makes three contributions.(1) We first show that even for one client, the previously proposed canonical triangular scheme for inter-layer network coding can perform poorly. We show how to enhance the triangular scheme by incorporating the estimated target number of layers which significantly improves its effectiveness. (2) We show that such an enhanced triangular scheme still performs poorly for multiple clients with diverse channel characteristics, which motivates the need for searching for the optimal coding strategy. The naive way of searching for the optimal strategy is computationally prohibitive. We present several optimizations that drastically reduce the complexity of exhaustively searching for the optimal strategy, making it feasible in real time. (3) Finally, we design and evaluate an online video delivery scheme, Percy, to be deployed at a proxy behind the AP of a wireless LAN. Our simulation results show that Percy outperforms the previous inter-layer coding heuristic by up to 22-80% with varying numbers of clients.

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Practical Network Coding for scalable video in error prone networks

Cited by 7 publications

References 5 publications

Network Coding Techniques for Wireless and Sensor Networks

Network Coding Techniques for Wireless and Sensor Networks

SDC: Scalable description coding for adaptive streaming media

Efficient Online WiFi Delivery of Layered-Coding Media Using Inter-layer Network Coding

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