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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1109/TIP.2009.2032943
|2 doi
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|a pubmed24n0639.xml
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|a (DE-627)NLM191632791
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|a (NLM)19783503
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|a DE-627
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|e rakwb
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|a eng
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|a Dumitrescu, Sorina
|e verfasserin
|4 aut
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|a Unequal erasure protection technique for scalable multistreams
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 09.03.2010
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|a Date Revised 19.01.2010
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a This paper presents a novel unequal erasure protection (UEP) strategy for the transmission of scalable data, formed by interleaving independently decodable and scalable streams, over packet erasure networks. The technique, termed multistream UEP (M-UEP), differs from the traditional UEP strategy by: 1) placing separate streams in separate packets to establish independence and 2) using permuted systematic Reed-Solomon codes to enhance the distribution of message symbols amongst the packets. M-UEP improves upon UEP by ensuring that all received source symbols are decoded. The R-D optimal redundancy allocation problem for M-UEP is formulated and its globally optimal solution is shown to have a time complexity of O(2(N)N(L+1)(N+1)) , where N is the number of packets and L is the packet length. To address the high complexity of the globally optimal solution, an efficient suboptimal algorithm is proposed which runs in O(N(2)L(2)) time. The proposed M-UEP algorithm is applied on SPIHT coded images in conjunction with an appropriate grouping of wavelet coefficients into streams. The experimental results reveal that M-UEP consistently outperforms the traditional UEP reaching peak improvements of 0.6 dB. Moreover, our tests show that M-UEP is more robust than UEP in adverse channel conditions
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|a Journal Article
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|a Rivers, Geoffrey
|e verfasserin
|4 aut
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|a Shirani, Shahram
|e verfasserin
|4 aut
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|i Enthalten in
|t IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
|d 1992
|g 19(2010), 2 vom: 01. Feb., Seite 422-34
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|x 1941-0042
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|g volume:19
|g year:2010
|g number:2
|g day:01
|g month:02
|g pages:422-34
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|u http://dx.doi.org/10.1109/TIP.2009.2032943
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