A Scalable Video Coding (SVC)-Aware Retransmission Scheme for Multimedia Streaming in IEEE 802.11 WLANs 


Vol. 39,  No. 2, pp. 95-101, Feb.  2014


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  Abstract

Scalable video coding (SVC) encodes multimedia data into a base layer and enhancement layers to cope with variable network conditions in an adaptive manner. In SVC, enhancement layers can be decoded only when the base layer is successively received. However, existing works on SVC transmissions in IEEE 802.11 WLANs do not fully investigate this characteristic and thus their performance can be degraded. In this paper, we propose a SVC-aware retransmission (SAR) scheme in IEEE 802.11 WLANs. The SAR scheme applies different retransmission policies for base and enhancement layers by obtaining the optimal number of frames to be retransmitted. As a result, the SAR scheme can reduce unnecessary retransmissions and minimize the transmission latency. Simulation results demonstrate that the SAR scheme can reduce unnecessary data transmission by 12.6% and the transmission latency by 6.6~19.1% compared to conventional retransmission schemes.

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  Cite this article

[IEEE Style]

N. Kim, T. Song, W. Kim, S. Pack, "A Scalable Video Coding (SVC)-Aware Retransmission Scheme for Multimedia Streaming in IEEE 802.11 WLANs," The Journal of Korean Institute of Communications and Information Sciences, vol. 39, no. 2, pp. 95-101, 2014. DOI: .

[ACM Style]

Namyeong Kim, Taewon Song, Wonjung Kim, and Sangheon Pack. 2014. A Scalable Video Coding (SVC)-Aware Retransmission Scheme for Multimedia Streaming in IEEE 802.11 WLANs. The Journal of Korean Institute of Communications and Information Sciences, 39, 2, (2014), 95-101. DOI: .

[KICS Style]

Namyeong Kim, Taewon Song, Wonjung Kim, Sangheon Pack, "A Scalable Video Coding (SVC)-Aware Retransmission Scheme for Multimedia Streaming in IEEE 802.11 WLANs," The Journal of Korean Institute of Communications and Information Sciences, vol. 39, no. 2, pp. 95-101, 2. 2014.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880