Abstract
This paper presents stream splitting and merging (SSM) mechanisms to effectively exploit network bandwidth in SVC-streaming networks. The multi-layer characteristics of SVC (Scalable Video Coding) are fully utilized to split and merge concurrent video streams. In stream splitting, adequate SVC layers for splitting are calculated from periodical measurement of network bandwidth. In stream merging, a certain number of enhancement layers of one stream are merged to the top of base layer of another stream. The novelties in stream merging are in two aspects: (i) if the stream to be merged is slower than the one to contribute, all the arriving packets of the faster stream are buffered; (ii) if the stream to be merged is faster than the one to contribute, the packets of the faster stream are delayed. For the purpose of validation, the proposed SSM algorithms are implemented on Linux platform. In the experiments of a wired and wireless heterogeneous network, buffering delay and queuing length are analyzed, respectively, to demonstrate the effectiveness of the proposed SSM.
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Sheu, TL., Hsieh, YC. (2011). Splitting and Merging for Bandwidth Exploitation in SVC-Based Streaming Networks. In: Balandin, S., Koucheryavy, Y., Hu, H. (eds) Smart Spaces and Next Generation Wired/Wireless Networking. ruSMART NEW2AN 2011 2011. Lecture Notes in Computer Science, vol 6869. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-22875-9_56
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DOI: https://doi.org/10.1007/978-3-642-22875-9_56
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