ÇѱÛÁ¦¸ñ(Korean Title) |
802.11 WLAN ¹æ¼Û ÆÐŶÀ» ÀÌ¿ëÇÑ ½Å·Ú¼º ÀÖ´Â ½Ç½Ã°£ ¸ÖƼ¹Ìµð¾î µ¥ÀÌÅÍ Àü¼Û ¹æ¹ý |
¿µ¹®Á¦¸ñ(English Title) |
A Method for Reliable Transmission of Real-Time Multimedia Data over 802.11 WLANs using Broadcast Packets |
ÀúÀÚ(Author) |
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Se-mi Kim
Dong-hyun Kim
Jong-deok Kim
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¿ø¹®¼ö·Ïó(Citation) |
VOL 18 NO. 01 PP. 0681 ~ 0684 (2011. 05) |
Çѱ۳»¿ë (Korean Abstract) |
ÃÖ±Ù IEEE 802.11 WLAN(Wireless Local Area Network)¿¡¼ ½Ç½Ã°£ ¸ÖƼ¹Ìµð¾î ¼ºñ½º°¡ Áõ°¡ÇÏ°í ÀÖ´Ù. WLAN ÀÇ ÆÐŶ Àü¼Û¹æ½ÄÀº Unicast ¶Ç´Â Broadcast ¹æ½ÄÀÌ ÀÖ´Ù. Unicast ¹æ½ÄÀº ÀçÀü¼ÛÀ» Æ÷ÇÔÇÏ¿© À¯½ÇÀ²ÀÌ ÀûÀ¸³ª »ç¿ëÀÚ°¡ Áõ°¡ÇÒ¼ö·Ï AP ¿¡¼ ÇÊ¿äÇÑ ¹«¼± ÀÚ¿øÀÇ Å©±â°¡ Áõ°¡ÇÑ´Ù. ¹«¼± ÀÚ¿øÀÇ Å©±â°¡ Áõ°¡Çϸé AP ºÎÇÏ°¡ Áõ°¡ÇÏ¿© ¼ºñ½º ¼ö¿ë¿¡ ÇÑ°è°¡ ÀÖ´Ù. Broadcast ¹æ½ÄÀº »ç¿ëÀÚ ¼ö¿¡ »ó°ü ¾øÀÌ ¹«¼± ÀÚ¿øÀÇ Å©±â°¡ ÀÏÁ¤Çϳª, ÆÐŶ À¯½ÇÀ²ÀÌ ³ô´Ù. º» ³í¹®¿¡¼´Â ÀÌ·¯ÇÑ ¹®Á¦Á¡À» ÇØ°áÇϱâ À§ÇØ Broadcast ¿Í FEC(Forward Error Correction) Erasure Code ±â¹Ý ±â¼úÀ» Àû¿ëÇÏ´Â °ÍÀ» Á¦¾ÈÇÑ´Ù. ¹æ¼Û ÆÐŶÀ» ÀÌ¿ë AP ÀÇ ºÎÇϸ¦ ÁÙÀÌ°í, Reed Solomon Erasure Code ¸¦ Àû¿ëÇÏ¿© ÆÐŶ À¯½Ç º¹±¸À²À» ³ôÀδÙ. ÀÌ·¯ÇÑ ¹æ¹ýÀ» ÅëÇÏ¿© ´Ù¼öÀÇ »ç¿ëÀÚ¿¡°Ô ¾ÈÁ¤ÀûÀÎ ½Ç½Ã°£ ¸ÖƼ¹Ìµð¾î ¹æ¼Û ¼ºñ½º¸¦ Á¦°ø ÇÒ ¼ö ÀÖ´Ù. Á¦¾ÈÇÑ ¹æ¹ýÀ» °ËÁõÇϱâ À§ÇØ Android Platform ¿¡¼ FEC Àû¿ë À¯¹«¿¡ µû¸¥ ¼ö½ÅÀ²À» ÃøÁ¤ÇÏ¿´´Ù. ±× °á°ú À¯½ÇÀ² 30%¹Ì¸¸ÀÎ Broadcast ȯ°æ¿¡¼ 96.4% ÀÌ»óÀÇ ¼ö½ÅÀ²À» º¸¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
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Å°¿öµå(Keyword) |
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