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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) ³ôÀº Áö¿¬À» °®´Â ³×Æ®¿öÅ©¿¡¼­ QoE Çâ»óÀ» À§ÇÑ HTTP ÀûÀÀÀû ½ºÆ®¸®¹Ö ±â¹ý
¿µ¹®Á¦¸ñ(English Title) An HTTP Adaptive Streaming Scheme to Improve the QoE in a High Latency Network
ÀúÀÚ(Author) ±è»ó¿í   Á¤±¤¼ö   Sangwook Kim   Kwangsue Chung  
¿ø¹®¼ö·Ïó(Citation) VOL 45 NO. 02 PP. 0175 ~ 0186 (2018. 02)
Çѱ۳»¿ë
(Korean Abstract)
ÃÖ±Ù QoE¸¦ Çâ»ó½ÃÅ°±â À§ÇÑ ºñµð¿À ½ºÆ®¸®¹Ö ÇÁ·ÎÅäÄÝ·Î HTTP ÀûÀÀÀû ½ºÆ®¸®¹ÖÀÌ ÁÖ¸ñ¹Þ°íÀÖ´Ù. ³ôÀº Áö¿¬À» °®´Â ³×Æ®¿öÅ©¿¡¼­ HTTP ÀûÀÀÀû ½ºÆ®¸®¹ÖÀº ÇϳªÀÇ ¼¼±×¸ÕÆ® ¿äû¿¡ ÇϳªÀÇ ¼¼±×¸ÕÆ®¸¦ ÀÀ´ä ¹Þ´Â Çü½ÄÀ¸·Î µ¿ÀÛÇϱ⠶§¹®¿¡ Lost RTT Cycle¿¡ ÀÇÇØ Æò±Õ ºñµð¿À ºñÆ®À²ÀÌ °¨¼ÒÇÑ´Ù. ÇϳªÀÇ ¿äû¿¡ ´Ù¼öÀÇ ¼¼±×¸ÕÆ®¸¦ ´Ù¿î·ÎµåÇÏ´Â Server-push ±â¹ÝÀÇ ½ºÆ®¸®¹Ö ±â¹ýÀº ¹öÆÛ ¾ð´õÇ÷ο쿡 ÀÇÇÑ QoE ÀúÇÏ°¡ ¹ß»ýÇÑ´Ù. º» ³í¹®¿¡¼­´Â ³ôÀº Áö¿¬À» °®´Â ³×Æ®¿öÅ©¿¡¼­ HTTP ÀûÀÀÀû ½ºÆ®¸®¹ÖÀÇ QoE¸¦ Çâ»ó½ÃÅ°±â À§ÇÑ VSSDS(Video Streaming Scheme based on Dynamic Server-push) ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ±â¹ýÀº °¡¿ë´ë¿ªÆøÀ» ¿¹ÃøÇÏ¿© Ç°ÁúÁ¶ÀýÀ» ¼öÇàÇÏ°í, ¿äû Áֱ⸶´Ù ¿äûÇÒ ¼¼±×¸ÕÆ®ÀÇ °³¼ö¸¦ °áÁ¤ÇÑ´Ù. ½ÇÇèÀ» ÅëÇÏ¿© Á¦¾ÈÇÏ´Â ±â¹ýÀÌ ±âÁ¸ ±â¹ý¿¡ ºñÇØ Æò±Õ ºñµð¿À ºñÆ®À²À» Çâ»ó½ÃÅ°¸ç, ¹öÆÛ ¾ð´õÇ÷ο츦 ¹æÁöÇÏ´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
Recently, HAS (HTTP Adaptive Streaming) has been the subject of much attention to improve the QoE (Quality of Experience). In a high latency network, HAS degrades the QoE due to the lost RTT cycle since it replies with a response of one segment to the request of one segment. The server-push based HAS schemes of downloading multiple segments in one request cause QoE degradation due to the buffer underflow. In this paper, we propose a VSSDS (Video Streaming Scheme based on Dynamic Server-push) scheme to improve the QoE in a high latency network. The proposed scheme adjust video quality by estimating available bandwidth and determine the number of segments to be downloaded for each segment request cycle. Through the simulation, the proposed scheme not only improves the average video bitrate but also alleviates the buffer underflow.
Å°¿öµå(Keyword) HTTP ÀûÀÀÀû ½ºÆ®¸®¹Ö   DASH   »ç¿ëÀÚ Ã¼°¨ Ç°Áú (QoE)   ºñµð¿À Ç°Áú Á¶Àý ±â¹ý   HTTP adaptive streaming   DASH   QoE (Quality of Experience)   video quality control scheme  
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