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Contact-Based Adaptive Granularity for Scalable Video Transmission in Opportunistic Networks

Merza Klaghstan 1 Nadia Bennani 1 David Coquil Harald Kosch Lionel Brunie 1
1 DRIM - Distribution, Recherche d'Information et Mobilité
LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information
Abstract : Video transmission is a very challenging task in opportunistic networks, due to their coarse characteristics of frequent disruptions and uncertain data delivery. In a previous work [1], we presented promising results of scalable video transmission in opportunistic networks. Users’ viewing experience was taken into account, by the means of playout delay and perceived quality. However, there was still a space for the results to be bettered, and we suggested to change the transmission unit from SVC layers to their composing NAL parts. In this paper, after reviewing the last work and results, we implement the new idea, outline its pros and cons and propose a new integrated solution. The new proposal is a network density aware packetization technique, which dynamically reforms the transmission units into larger chunks with a higher probability of successful delivery. Both proposals are experimentally evaluated using the opportunistic networks environment simulator
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Submitted on : Tuesday, February 9, 2016 - 3:36:25 PM
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Merza Klaghstan, Nadia Bennani, David Coquil, Harald Kosch, Lionel Brunie. Contact-Based Adaptive Granularity for Scalable Video Transmission in Opportunistic Networks. IWCMC(10th International Wireless Communications and Mobile Computing Conference), Aug 2014, Nicosi- Cyprus, Cyprus. pp.773-778, ⟨10.1109/IWCMC.2014.6906454⟩. ⟨hal-01271730⟩



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