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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö > Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö C

Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö C

Current Result Document : 81 / 102 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) Â÷·®°£ Åë½Å¿¡¼­ ±ä±Þ ¸Þ½ÃÁö ÀüÆĸ¦ À§ÇÑ ÀûÀÀÀû ¸±·¹ÀÌ ³ëµå ¼±Á¤±â¹ý
¿µ¹®Á¦¸ñ(English Title) An Adaptive Relay Node Selection Scheme for Alert Message Propagation in Inter-vehicle Communication
ÀúÀÚ(Author) ±èÅÂȯ   È«¿ø±â   ±èÈñö  
¿ø¹®¼ö·Ïó(Citation) VOL 14-C NO. 07 PP. 0571 ~ 0582 (2007. 12)
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(Korean Abstract)
Â÷·® ¾ÖµåȤ ³×Æ®¿öÅ©´Â ±â¹Ý ½Ã¼³ÀÇ µµ¿ò ¾øÀÌ Â÷·®°£ ¹«¼±Åë½ÅÀ» ÅëÇØ ±¸¼ºµÇ´Â Àӽà ³×Æ®¿öÅ©ÀÌ´Ù. ƯÈ÷, ¿îÀüÀÚÀÇ ¾ÈÀü°ú °ü·ÃµÈ ±³ÅëÁ¤º¸°¡ ´Ù·ç¾îÁö±â ¶§¹®¿¡ ½Å¼ÓÇÑ ¸Þ½ÃÁö ÀüÆÄ°¡ ¿ä±¸µÈ´Ù. À̸¦ À§ÇÑ ´ëÇ¥ÀûÀÎ ¸Þ½ÃÁö ÀüÆÄ ±â¹ýÀ¸·Î °Å¸® ±â¹Ý ºê·ÎƮij½ºÆ® ±â¹ýÀÌ ÀÖ´Ù. ÀÌ ±â¹ýÀº ¼Ò½º³ëµå·Î ºÎÅÍÀÇ °Å¸®¸¦ ±â¹ÝÀ¸·Î ¸Þ½ÃÁö ÀüÆÄ ³ëµå¸¦ ¼±ÅÃÇÑ´Ù. ±×·¯³ª °¢ ¸Þ½ÃÁö ÀüÆÄ ³ëµå°¡ ¼Ò½º³ëµåÀÇ Åë½Å¹üÀ§ °¡ÀåÀÚ¸®¿¡ À§Ä¡ÇÏÁö ¾ÊÀ» °æ¿ì ¸Þ½ÃÁö ÀüÆÄ Áö¿¬½Ã°£ÀÌ Áõ°¡ÇÏ´Â ¹®Á¦Á¡À» °¡Áö°í ÀÖ´Ù. ƯÈ÷, ³ëµåÀÇ ¹Ðµµ°¡ ³·À» °æ¿ì ¸Þ½ÃÁö ÀüÆÄ Áö¿¬½Ã°£Àº ´õ¿í Áõ°¡ÇÑ´Ù. º» ³í¹®¿¡¼­´Â ÀÌ·¯ÇÑ ¹®Á¦Á¡À» °³¼±Çϱâ À§ÇØ ½Ã°£Ã¢ ¿¹¾à ±â¹Ý ¸±·¹ÀÌ ³ëµå ¼±Åñâ¹ýÀ» »ç¿ëÇÑ ºê·Îµåij½ºÆ® ÇÁ·ÎÅäÄÝÀ» Á¦¾ÈÇÏ¿´´Ù. Á¦¾ÈÇÑ ±â¹ýÀº °¢ ³ëµå°¡ ÁÖ¾îÁø ½Ã°£Ã¢ ³»¿¡¼­ ÀÓÀÇÀÇ ¸Þ½ÃÁö Àü¼Û ´ë±â½Ã°£À» ¼±ÅÃÇÑ´Ù. °¢ ³ëµåÀÇ ½Ã°£Ã¢Àº ¸±·¹ÀÌ ³ëµå·ÎºÎÅÍÀÇ °Å¸®¿¡ µû¶ó °¢±â ´Ù¸¥ ½Ã°£¹üÀ§¸¦ °®°Ô µÇ¸ç, ¼Ò½º³ëµåÀÇ Åë½Å¿µ¿ªÀÇ °¡ÀåÀÚ¸®¿¡ Á» ´õ °¡±îÀÌ À§Ä¡ÇÑ ³ëµå°¡ ´ÙÀ½ ¸±·¹ÀÌ ³ëµå·Î ¼±ÅÃµÉ ¼ö ÀÖµµ·Ï ÁÖ¾îÁø ½Ã°£Ã¢ÀÇ ÀϺθ¦ ¿¹¾àÇÑ´Ù. ½ÇÇè°á°ú, ½Ã°£Ã¢ ¿¹¾à ±â¹Ý ¸±·¹ÀÌ ³ëµå ¼±Á¤±â¹ýÀ» »ç¿ëÇÑ ºê·Îµåij½ºÆ® ÇÁ·ÎÅäÄÝÀÌ °Å¸® ±â¹Ý ºê·Îµå ij½ºÆ®º¸´Ù ³ëµå¹ÐµµÀÇ º¯È­¿¡ »ó°ü¾øÀÌ ´õ ªÀº Á¾´Ü°£ ¸Þ½ÃÁö ÀüÆÄ Áö¿¬½Ã°£À» º¸¿´´Ù. ƯÈ÷, ³ëµå¹Ðµµ°¡ ³·À» °æ¿ì 25.7% ªÀº Á¾´Ü°£ ¸Þ½ÃÁö ÀüÆÄ Áö¿¬½Ã°£À» º¸¿´À¸¸ç, Áö¿¬½Ã°£°ú ³×Æ®¿öÅ© ºÎÇÏÀÇ ÇÕ¼º¼º´ÉÀº Á¦¾ÈÇÑ ±â¹ýÀÌ 46% ¿ì¼öÇÑ ¼º´ÉÀ» º¸¿´´Ù.
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(English Abstract)
Vehicular ad-hoc networks is temporarily established through inter-vehicle communication without any additional infrastructure aids. It requires a immediate message propagation because it mainly deals with critical traffic information such as traffic accidents. The distance-based broadcast scheme is one of the representative broadcast schemes for vehicular ad-hoc network. In this scheme, a node to disseminate messages is selected based on a distance from a source node. However, a message propagation delay will be increased if the relay nodes are not placed at the border of transmission range of the source node. In particular, when the node density is low, the message propagation delay is getting longer. In this paper, we propose a time-window reservation based relay node selection scheme. A node receiving the alert message from the source node has its time-window and randomly selects its waiting time within the given time-window range. A proportional time period of the given time-window is reserved in order to reduce the message propagation delay. The experimental results show that the proposed scheme has shorter message propagation delay than the distance-based broadcast scheme irrespective of node density in VANET. In particular, when the node density is low, the proposed scheme shows about 26% shorter delay and about 46% better performance in terms of compound metric, which is a function of propagation latency and network traffic.

Å°¿öµå(Keyword) Â÷·® ¾ÖµåȤ ³×Æ®¿öÅ©   ¸ÖƼ-È© ºê·Îµåij½ºÆ®   ±ä±Þ ¸Þ½ÃÁö ÀüÆÄ   Â÷·®°£ Åë½Å   Vehicular Ad-hoc Network   Multi-hop broadcast   Alert Message Propagation   Inter-vehicle Communication  
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