A Dual Transcoding Method for Retaining QoS of Video Streaming Services under Restricted Computing Resources


KIPS Transactions on Computer and Communication Systems, Vol. 3, No. 7, pp. 231-240, Jul. 2014
10.3745/KTCCS.2014.3.7.231, Full Text:

Abstract

Video transcoding techniques provide an efficient mechanism to make a video content adaptive to the capabilities of a variety of clients. However, it is hard to provide an appropriate quality-of-service(QoS) to the clients owing to heavy workload on transcoding operations. In light of this fact, this paper presents the dual transcoding method in order to guarantee QoS in streaming services by maximizing resource usage in a transcoding server equipped with both CPU and GPU computing units. The CPU and GPU computing units have different architectural features. The proposed method speculates workload of incoming transcoding requests and then schedules the requests either to the CPU or GPU accordingly. From performance evaluation, the proposed dual transcoding method achieved a speedup of 1.84 compared with traditional transcoding approach.


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Cite this article
[IEEE Style]
D. H. Oh and W. W. Ro, "A Dual Transcoding Method for Retaining QoS of Video Streaming Services under Restricted Computing Resources," KIPS Transactions on Computer and Communication Systems, vol. 3, no. 7, pp. 231-240, 2014. DOI: 10.3745/KTCCS.2014.3.7.231.

[ACM Style]
Doo Hwan Oh and Won Woo Ro. 2014. A Dual Transcoding Method for Retaining QoS of Video Streaming Services under Restricted Computing Resources. KIPS Transactions on Computer and Communication Systems, 3, 7, (2014), 231-240. DOI: 10.3745/KTCCS.2014.3.7.231.