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ÇѱÛÁ¦¸ñ(Korean Title) |
³ëº¯±âÁö±¹°ú Â÷·® °£ Åë½ÅÀ» À§ÇÑ ½ÇÁ¦ °æ·Î µ¥ÀÌÅÍ ±â¹Ý EDCA ¼º´É ºÐ¼® |
¿µ¹®Á¦¸ñ(English Title) |
Performance Analysis of EDCA for Infrastructure-to-Vehicle Communications with Empirical Trajectory Data |
ÀúÀÚ(Author) |
±è°æÈÖ
ÀÌÁ¤ºó
ÀÌ¿øÁØ
Kyunghwi Kim
Jeongbeen Lee
Wonjun Lee
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¿ø¹®¼ö·Ïó(Citation) |
VOL 40 NO. 04 PP. 0207 ~ 0212 (2013. 08) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â ½ÇÁ¦ Â÷·®µéÀÇ °æ·Î µ¥ÀÌÅ͸¦ È°¿ëÇÏ¿© Â÷·® ³×Æ®¿öÅ©¿¡¼ÀÇ ³ëº¯±âÁö±¹°ú Â÷·® °£ Åë½Å¼º´ÉºÐ¼® ¿¬±¸¸¦ ¼öÇàÇÑ´Ù. ÇØ´ç ³×Æ®¿öÅ© Åë½Å °ü·Ã Ç¥ÁØÀÎ IEEE 802.11p¿¡¼´Â EDCA(Enhanced Distributed Channel Access)¸¦ ÀÌ¿ëÇÏ¿© Â÷·®µéÀÇ Åë½Å Á¢±ÙÀ» Á¦¾îÇϸç, ¿ì¸®´Â ¿©·¯ °¡Áö Àü¼Û Â÷·®ÀÇ ºñÀ²À» »ç¿ëÇÏ°í ÁÖ¾îÁø AC(Access Category; Á¢±Ù¹üÁÖ)¿¡ µû¸¥ »ç¿ë ºñÀ²À» ´Ù¾çÇÏ°Ô ÇÏ¿© Àüü ½Ã½ºÅÛÀÇ ¼º´É°ú Ä«Å×°í¸®º° Â÷·®µéÀÇ ¼º´ÉÀ» ºñ±³/ºÐ¼®ÇÑ´Ù. 10MHz »ç¿ë¿¡ µû¸¥ ´ÙÁß Àü¼Û·üÀÇ ¿µÇâÀ» °í·ÁÇÏ¿´À¸¸ç, ±âÁ¸ EDCA ¼¼Æÿ¡ µû¸¥ ¼º´É ¾Çȸ¦ ÇÇÇϱâ À§ÇØ ¸Å°³º¯¼ö(parameter) Á¶Àý¿¡ µû¸¥ ¼º´É º¯Èµµ º¸ÀδÙ. ¼º´É Æò°¡ °á°ú¿¡ µû¸£¸é Àü¼Û ³ëµå ¼ö¿¡ µû¸¥ ¸Å°³º¯¼ö Á¶ÀýÀÌ ÇÊ¿äÇÏ°í, ³ôÀº ¿ì¼±¼øÀ§¸¦ °®´Â ACÀÇ CW(Contention Window) °ª Á¶ÀýÀÌ Åë½Å ¼º´É¿¡ °áÁ¤Àû ¿ªÇÒÀ» ³ªÅ¸³¿À» ¾Ë ¼ö ÀÖ´Ù. |
¿µ¹®³»¿ë (English Abstract) |
We conduct the network performance analysis for infrastructure-to-vehicle communications with the empirical trajectory data from NGSIM (Next Generation Simulation), and the default parameters from IEEE 802.11p standard are applied for EDCA (Enhanced Distributed Channel Access) setup. Different contending node ratios for ACs (Access Categories) are considered, and we analyze the network performance in terms of the average network system throughput and the expected node throughput at the access categories. We use multiple data rates for 10MHz channel, and simulation results include the network performance with modified parameter values. Simulation results show that the parameter should be controlled based on the number of contending nodes and the setup of CW(Contention Window) of high priority AC is the critical factor with regard to the transmission performance.
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Å°¿öµå(Keyword) |
Â÷·®³×Æ®¿öÅ©
IEEE 802.11p
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³ëº¯±âÁö±¹-Â÷·® °£ Åë½Å
°æ·Î µ¥ÀÌÅÍ
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vehicular networks
IEEE 802.11p
roadside unit
infrastructure-to-vehicle communication
empirical trajectory data
parameter control
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