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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) 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   ³ëÇö¹Î   ÃÖÁõ¿ø   ±è°æ¿ì   ±è±âÈÆ   ÀÌÁ¾¸¸   ¹Ú Çö   ¼ÛȲÁØ   Yunmin Go   Hyunmin Noh   Jeung Won Choi   Kyungwoo Kim   Kihun Kim   Jongman Lee   Hyun Park   Hwangjun Song  
¿ø¹®¼ö·Ïó(Citation) VOL 47 NO. 11 PP. 1092 ~ 1100 (2020. 11)
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(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.
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(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 Äڵ堠 ÀÌÁ¾ ¹«¼± ³×Æ®¿öÅ©   HTTP adaptive streaming   energy efficiency   TCP/UDP   raptor code   heterogeneous wireless networks  
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