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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ÄÄÇ»ÆÃÀÇ ½ÇÁ¦ ³í¹®Áö (KIISE Transactions on Computing Practices)

Á¤º¸°úÇÐȸ ÄÄÇ»ÆÃÀÇ ½ÇÁ¦ ³í¹®Áö (KIISE Transactions on Computing Practices)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) IP ±â¹Ý µðÁöÅÐ ¹æ¼Û ½Ã½ºÅÛÀ» À§ÇÑ Àü¼Û ±¸Á¶ ¿¬±¸
¿µ¹®Á¦¸ñ(English Title) A Study of Transmission Structure for IP-based Digital Broadcast Systems
ÀúÀÚ(Author) ¼­ÇüÀ±   ¹èº´ÁØ   ÀÓÇü¼ö   ÇãÁØȯ   ±èÁ¾´ö   Hyung-Yoon Seo   Byungjun Bae   Hyoungsoo Lim   Jun-hwan Huh   Jong-Deok Kim  
¿ø¹®¼ö·Ïó(Citation) VOL 21 NO. 06 PP. 0430 ~ 0435 (2015. 06)
Çѱ۳»¿ë
(Korean Abstract)
IP ±â¹Ý Â÷¼¼´ë µðÁöÅÐ ¹æ¼Û ½Ã½ºÅÛÀº DASH ¼¼±×¸ÕÆ® ÆÄÀÏÀ» Àü¼ÛÇÑ´Ù. DASH ¼¼±×¸ÕÆ® ÆÄÀÏÀº DASH ½Ã½ºÅÛ¿¡¼­ ´Ù¾çÇÑ Ç°ÁúÀÇ ¹Ìµð¾î ÄÜÅÙÃ÷¸¦ Á¦°øÇϱâ À§ÇØ ¼³°èµÇ¾ú°í, °°Àº Ç°ÁúÀÌ¶óµµ °¢ DASH ¼¼±×¸ÕÆ® ÆÄÀÏÀÇ Å©±â´Â °¡º¯ÀûÀÌ´Ù. °¡º¯ÀûÀÎ Å©±âÀÇ DASH ¼¼±×¸ÕÆ® ÆÄÀÏÀ» ¹æ¼Û¸Á¿¡¼­ Àü¼ÛÇÒ ¶§ ¹ß»ýÇÏ´Â °¡Àå Å« ¹®Á¦´Â Áö¿¬°ú ÀÚ¿øÀÇ È¿À²¼ºÀÌ´Ù. ÀüÅëÀûÀÎ ¹æ¼Û Àü¼Û ½Ã½ºÅÛÀº ¹æ¼Û¸Á(physical layer)ÀÇ Æ¯¼º¿¡ ¸Â°Ô ¼³°èµÇ¾úÀ¸¸ç, Àü¼ÛÇÏ´Â ÄÜÅÙÃ÷ÀÇ ¾çÀÌ ¸¹Áö ¾Ê±â ¶§¹®¿¡ Áö¿¬°ú ÀÚ¿øÀÇ È¿À²¼º ¹®Á¦°¡ Å©°Ô ¹ß»ýÇÏÁö ¾Ê°í, °ü·Ã ¿¬±¸¸¦ ã¾Æº¸±â Èûµé´Ù. Â÷¼¼´ë ¹æ¼Û¿¡¼­ Àü¼ÛÇÏ´Â ÄÜÅÙÃ÷ÀÇ ¾çÀº Ä¿Áö°í ÀÖÀ¸¸ç(e.g. FHD, UHD(4k, 8k) µî), ¼¼±×¸ÕÆ® ÆÄÀÏ Å©±âÀÇ °¡º¯¼º ¿ª½Ã Å©´Ù. ±â¼úÀÇ ¹ßÀüÀ¸·Î Â÷¼¼´ë ¹æ¼ÛÀÇ ÀÚ¿ø ¿ª½Ã ´Ã¾î³ª±â´Â ÇßÁö¸¸, ¹æ¼Û Ư¼º»ó ¿©ÀüÈ÷ Á¦Çѵǰí, °íÁ¤µÈ´Ù. ±×·¯¹Ç·Î Â÷¼¼´ë ¹æ¼Û ½Ã½ºÅÛÀº Áö¿¬°ú ÀÚ¿øÀÇ È¿À²¼º ¹®Á¦°¡ ¹ß»ýÇÒ ¼ö ÀÖÁö¸¸, ÀÌ ¿ª½Ã °ü·Ã ¿¬±¸¸¦ ã¾Æº¸±â Èûµé´Ù. µû¶ó¼­ ÀÌ ³í¹®¿¡¼­´Â °¢ DASH ¼¼±×¸ÕÆ® ÆÄÀÏÀ» Àü¼ÛÇÒ ¶§ Áö¿¬°ú ÀÚ¿øÀÇ È¿À²¼ºÀ» ºÐ¼®ÇÒ ¼ö ÀÖ´Â Àü¼Û ±¸Á¶¸¦ Á¦¾ÈÇÏ°í, Á¦¾ÈÇÑ Àü¼Û±¸Á¶·Î ½Ã¹Ä·¹ÀÌ¼Ç °á°ú¸¦ º¸ÀδÙ.
¿µ¹®³»¿ë
(English Abstract)
IP-based, next generation digital broadcast systems transmit DASH segment files. Designed by the DASH system, DASH segment files provide variable quality of contents, while the size of DASH segment files varies even if the file has the same quality. Delays and inefficient use of resources are major challenges in the transmission of variable size DASH segment files in broadcasting systems. Traditional broadcasting transmission systems are designed according to characteristics of physical layer of broadcast, and thus, delay and inefficient resources use is difficult to find. Yet, transmission content quantities continue to rise in the next-generation broadcasting systems (e.g. FHD, UHD (4k, 8k)) with variability of the segments file size as well. Resources for next-generation broadcast are more abundant than traditional broadcast with recent development, but continue to be limited and fixed. Resource delay and inefficiency are important but has not been extensively studied. We propose a transmission structure solution to analyze the delay and efficiency of the resource as each DASH segment file is transmitted, and have further performed simulation studies.
Å°¿öµå(Keyword) DASH Segment file   Token Bucket   Leaky Bucket   IP ±â¹Ý ¹æ¼Û Àü¼Û ½Ã½ºÅÛ   DASH segment file   token bucket   leaky bucket   IP-based transmission system  
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