Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
ÀÌÁ¾ ¹«¼± ³×Æ®¿öÅ©¿¡¼ TCP/UDP¸¦ ÅëÇÑ ¿¡³ÊÁö È¿À²ÀûÀÎ ºñµð¿À ½ºÆ®¸®¹Ö ½Ã½ºÅÛ |
¿µ¹®Á¦¸ñ(English Title) |
Energy-efficient Video Streaming System with TCP/UDP over Heterogeneous Wireless Networks |
ÀúÀÚ(Author) |
°íÀ±¹Î
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ÃÖÁõ¿ø
±è°æ¿ì
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¹Ú Çö
¼ÛȲÁØ
Yunmin Go
Hyunmin Noh
Jeung Won Choi
Kyungwoo Kim
Kihun Kim
Jongman Lee
Hyun Park
Hwangjun Song
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¿ø¹®¼ö·Ïó(Citation) |
VOL 47 NO. 11 PP. 1092 ~ 1100 (2020. 11) |
Çѱ۳»¿ë (Korean Abstract) |
º» ¿¬±¸¿¡¼´Â ÀÌÁ¾ ¹«¼± ³×Æ®¿öÅ©¿¡¼ TCP/UDP¸¦ ÅëÇÑ ¿¡³ÊÁö È¿À²ÀûÀÎ HTTP ÀûÀÀÀû ½ºÆ®¸®¹ÖÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ½Ã½ºÅÛÀº ±âÁ¸ HTTP ÀûÀÀÀû ½ºÆ®¸®¹Ö ½Ã½ºÅÛ°ú ´Ù¸£°Ô Á¦¾ÈµÈ ½Ã½ºÅÛÀº TCP ¹× UDP¸¦ ¸ðµÎ »ç¿ëÇÏ¿© ³×Æ®¿öÅ© »óÅ¿¡ µû¸¥ TCPÀÇ ¼º´É ÀúÇÏ ¹®Á¦¸¦ ÇØ°áÇÏ°í ¿¡³ÊÁö È¿À²¼º À» Çâ»ó½ÃŲ´Ù. Á¦¾ÈµÈ ½Ã½ºÅÛÀº À̵¿ ´Ü¸»ÀÇ ³×Æ®¿öÅ© Á¶°Ç, ¹öÆÛ Á¡À¯ ¹× ¿¡³ÊÁö È¿À²À» °í·ÁÇÏ¿© Àü¼Û ÇÁ·ÎÅäÄÝÀÇ Á¾·ù, ¿äûµÈ ºñµð¿À Ç°Áú ¹× °¢ ¹«¼± ³×Æ®¿öÅ©¸¦ ÅëÇØ ¼ö½ÅµÇ´Â µ¥ÀÌÅÍÀÇ ¾çÀ» °áÁ¤ÇÑ´Ù. Àü¼Û ÇÁ·ÎÅäÄÝ·Î UDP°¡ ¼±Åà ½Ã, ½Å·Ú¼º ÀÖ´Â µ¥ÀÌÅÍ Àü¼Û º¸ÀåÇϱâ À§ÇØ ·¦ÅÍ Äڵ带 Àû¿ëÇÏ¿´À¸¸ç, ¿¡³ÊÁö È¿À²Àû Àü¼ÛÀ» À§ÇØ ½Éº¼ Å©±â ¹× Áߺ¹ µ¥ÀÌÅ;ç°ú °°Àº ·¦ÅÍ ¸Å°³ º¯¼ö¸¦ ÀûÀÀÀûÀ¸·Î º¯°æÇÑ´Ù. Á¦¾ÈµÈ ½Ã½ºÅÛÀº ¾Èµå·ÎÀÌµå ±â¹Ý ´Ü¸»¿¡¼ ±¸ÇöµÇ¾úÀ¸¸ç, ½ÇÁ¦ WiFi ¹× LTE ³×Æ®¿öÅ©¿¡¼ Á¦¾ÈµÈ ½Ã½ºÅÛÀÌ ¿¡³ÊÁö È¿À²ÀûÀ̸ç, °íÇ°ÁúÀÇ ½ºÆ®¸®¹Ö ¼ºñ½º¸¦ Á¦°øÇÒ ¼ö ÀÖÀ½À» °ËÁõÇÏ¿´´Ù. |
¿µ¹®³»¿ë (English Abstract) |
In this paper, we propose a video streaming system with TCP/UDP over heterogeneous wireless networks. Unlike the existing HTTP adaptive streaming system, the proposed system can use both TCP and UDP to overcome the TCP's performance degradation problem and improve energy efficiency. The proposed system determines the type of transport protocol, the video quality, and the amount of data received through each wireless network according to the network conditions, buffer occupancy, and energy efficiency of the mobile device. When UDP is selected as the transport protocol, the proposed system employs raptor code to provide more reliable data transmission. And raptor parameters, such as symbol size, the amount of redundant data, are also determined to provide energyefficient transmission. The proposed system is implemented in an android device and verified in real WiFi and LTE networks. Also, it is verified that the proposed system can provide high energy-efficient and high-quality streaming services. |
Å°¿öµå(Keyword) |
HTTP ÀûÀÀÀû ½ºÆ®¸®¹Ö
¿¡³ÊÁö È¿À²
TCP/UDP
·¦ÅÍ ÄÚµå
ÀÌÁ¾ ¹«¼± ³×Æ®¿öÅ©
HTTP adaptive streaming
energy efficiency
TCP/UDP
raptor code
heterogeneous wireless networks
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