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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) VBR ºñµð¿À ½ºÆ®¸®¹ÖÀ» À§ÇÑ ´ë¿ªÆø È°¿ë ±â¹ÝÀÇ QoE ÀÎÁöÇü Ç°Áú ÀûÀÀ ±â¹ý
¿µ¹®Á¦¸ñ(English Title) QoE-aware Quality Adaptation Scheme Based on Bandwidth Utilization for VBR Video Streaming
ÀúÀÚ(Author) °­Á¤È£   ±è¹Î¼ö   Á¤±¤¼ö   Jeongho Kang   Minsu Kim   Kwangsue Chung  
¿ø¹®¼ö·Ïó(Citation) VOL 47 NO. 06 PP. 0612 ~ 0621 (2020. 06)
Çѱ۳»¿ë
(Korean Abstract)
ÃÖ±Ù, ³×Æ®¿öÅ©ÀÇ ¹ßÀüÀ¸·Î ºñµð¿À ½ºÆ®¸®¹Ö¿¡ ´ëÇÑ ¼ö¿ä°¡ Áõ°¡Çϸ鼭 HTTP ÀûÀÀÀû ½ºÆ®¸®¹Ö (HTTP Adaptive Streaming)ÀÌ ÁÖ¸ñ¹Þ°í ÀÖ´Ù. HTTP ÀûÀÀÀû ½ºÆ®¸®¹ÖÀº ³×Æ®¿öÅ©ÀÇ »óȲ¿¡ ¸ÂÃç ÀûÀÀÀûÀ¸·Î Ç°ÁúÀ» °áÁ¤Çϱ⠶§¹®¿¡ QoE (Quality of Experience)¸¦ º¸ÀåÇÒ ¼ö ÀÖ´Ù. ±×·¯³ª ±âÁ¸ÀÇ Ç°Áú ÀûÀÀ ±â¹ýµéÀº ºñµð¿À¸¦ ½ºÆ®¸®¹ÖÇÒ ¶§ VBR (Variable Bit Rate) Ư¼ºÀ» °í·ÁÇÏÁö ¾Ê¾Æ Àç»ý ²÷±è°ú Æò±Õ Ç°Áú ÀúÇÏ¿Í °°Àº ¹®Á¦µéÀÌ ¹ß»ýÇÑ´Ù. º» ³í¹®¿¡¼­´Â VBR ºñµð¿À ½ºÆ®¸®¹ÖÀ» À§ÇÑ ´ë¿ªÆø È°¿ë ±â¹ÝÀÇ QoE ÀÎÁöÇü Ç°Áú ÀûÀÀ ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ±â¹ýÀº ºñµð¿À ¼¼±×¸ÕÆ®ÀÇ ½ÇÁ¦ Å©±â, °ú°Å¿¡ ¿äûÇÑ Ç°Áú Á¤º¸, ±×¸®°í ¹öÆÛ Á¡À¯·®ÀÇ º¯È­¸¦ ÀÌ¿ëÇØ Ç°ÁúÀ» °áÁ¤ÇÑ´Ù. ½ÇÇè °á°ú, Á¦¾ÈÇÏ´Â ±â¹ýÀÌ ±âÁ¸ ±â¹ýµé°ú ºñ±³ÇßÀ» ¶§ Àç»ý ²÷±èÀÌ ¹ß»ýÇÏÁö ¾Ê°í ÀûÀº Ç°Áú º¯°æ Ƚ¼ö¿Í ³ôÀº Æò±Õ Ç°Áú·Î QoE¸¦ Çâ»ó½ÃÅ°´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
In recent years, as the demand for video streaming has increased due to the development of the network, HTTP adaptive streaming has attracted increased attention. HTTP adaptive streaming can guarantee QoE (Quality of Experience) because it adaptively determines the quality to provide based on network conditions. However, existing quality adaptation techniques do not consider VBR (Variable Bit Rate) characteristics when streaming video, which causes problems such as interruption of playback and degradation of average quality. In this paper, we propose a QoE-aware quality adaptation method based on bandwidth utilization for VBR video streaming. The proposed scheme determines the quality to provide using the actual size of the video segment, the quality of information requested in the past, and the buffer occupancy. As a result of the experiment, we confirmed that the proposed scheme improves QoE thanks to fewer quality changes, higher average quality and without generating playback interruptions when compared with existing schemes.
Å°¿öµå(Keyword) HTTP ÀûÀÀÀû ½ºÆ®¸®¹Ö   ´ë¿ªÆø È°¿ë   VBR   QoE   HTTP adaptive streaming   bandwidth utilization   variable bit rate   quality of experience  
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