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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 : 6 / 15 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) VANETs ³» È¿À²ÀûÀÌ°í ÀûÀÀ °¡´ÉÇÑ ÇÏÀ̺긮µå ¸ÖƼ ä³Î ¸ÖƼ È© MAC ÇÁ·ÎÅäÄÝ
¿µ¹®Á¦¸ñ(English Title) An Efficient and Adaptable Hybrid Multi-channel Multi-hop MAC Protocol in VANETs
ÀúÀÚ(Author) ¹ÝµÕ´Ï¿£   ÇãÀdz²   È«Ãæ¼±   VanDung Nguyen   Eui-Nam Huh   Choong Seon Hong  
¿ø¹®¼ö·Ïó(Citation) VOL 45 NO. 10 PP. 0981 ~ 0989 (2018. 10)
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(Korean Abstract)
Â÷·®°ú °ü·ÃµÈ ¾ÖµåȤ ³×Æ®¿öÅ©(VANETs)Àº ±³Åë»ç°í¸¦ ÁÙÀÌ°í ¾ÈÀüÀ» Çâ»ó½ÃÅ°´Â µî ¿î¼Û È¿À²À» °³¼±Çϱâ À§ÇØ ¼³°èµÇ¾îÁ³´Ù. ¶ÇÇÑ VANETsÀº Â÷·® °£ÀÇ ¶Ç´Â Â÷·®°ú ÀÎÇÁ¶ó °£ÀÇ Á¤º¸¸¦ ¿¬°áÇÏ°í ±³È¯Çϱâ À§ÇØ ¸¸µé¾îÁ³´Ù. VANETsÀÇ °æ¿ì, È¿À²ÀûÀÎ ºê·Îµåij½ºÆ® ¼­ºñ½º¸¦ Á¦°øÇÏ´Â ¸Åü Á¢±Ù Á¦¾î(MAC) ÇÁ·ÎÅäÄÝÀº Â÷·®°ú °ø±ÞÀÚ °£ÀÇ ¹«¼± ¸Åü¸¦ È¿À²ÀûÀÌ°í °øÆòÇÏ°Ô °øÀ¯Çϵµ·Ï ¼³°èÇß´Ù. ÃÖ±Ù ÇÏÀ̺긮µå MAC ÇÁ·ÎÅäÄÝÀº QoS¸¦ Çâ»ó½ÃÅ°°í Ãæµ¹À²À» ÁÙÀ̱â À§ÇØ TDMA ¹× CSMA ±â¹Ý ¸ÞÄ¿´ÏÁòÀ» ´ÜÀÏ ¸ÞÄ¿´ÏÁòÀ¸·Î °áÇÕÇϵµ·Ï ¼³°èµÇ¾ú´Ù. º» ³í¹®¿¡¼­ ¿ì¸®´Â EAHMAC ÇÁ·ÎÅäÄÝÀ̶ó ºÒ¸®´Â È¿À²ÀûÀÌ°í ÀûÀÀ °¡´ÉÇÑ ÇÏÀ̺긮µå ¸ÖƼ ä³Î ¸ÖƼ È© MAC ÇÁ·ÎÅäÄÝÀ» Á¦¾ÈÇÑ´Ù. EAHMAC ÇÁ·ÎÅäÄÝÀº Â÷·®ÀÌ µÎ °³ÀÇ È© ÀÌ¿ôÀÇ Á¤º¸¸¦ ±â¹ÝÀÇ À¯¿¬ÇÑ ¹æ½ÄÀ¸·Î ŸÀÓ ½½·ÔÀ» Á¡À¯ÇÏ°í ºê·Îµå ij½ºÆ® ÆÐŶ ¿ª½Ã Á¡À¯ÇÒ ¼ö ÀÖ°Ô ÇÑ´Ù. ½Ã¹Ä·¹ÀÌ¼Ç °á°ú´Â ¿ì¸®ÀÇ Á¦¾ÈÀÌ ±âÁ¸ ÇÁ·ÎÅäÄݺ¸´Ù ¾×¼¼½º Ãæµ¹ ºñÀ², ÆÐŶ Àü´Þ ºñÀ² ¹× ¼­ºñ½º ä³Î 󸮷® ºÎºÐ¿¡¼­ ¿ì¿ùÇÑ °á°ú¸¦ º¸¿©ÁÖ¾ú´Ù.
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(English Abstract)
Vehicular Ad-hoc NETworks (VANETs) are designed to improve transportation efficiency such as to increase safety and reduce traffic accidents. In addition, VANET is created to connect and exchange information between vehicles or between vehicle and infrastructure. For VANET, Medium Access Control (MAC) protocols, which provide an efficient broadcast service, are designed to efficiently and fairly share the wireless medium between vehicles and providers. Recently, the hybrid MAC protocol was designed to combine TDMA- and CSMA-based mechanisms into a single mechanism to improve the Quality of Service (QoS) and decrease the collision rate. In this paper, we propose an Efficient and Adaptable Hybrid Multi-channel Multi-hop MAC protocol in VANETs, called the EAHMAC protocol, which allows vehicles to not only occupy time slots but also to broadcast packets in a flexible way based on the two-hop neighbor's information. The simulation results show that our proposal outperforms the existing protocols in terms of access collision rate, packet delivery ratio, and throughput on the service channel.
Å°¿öµå(Keyword) VANET   MAC   QoS   hybrid multi-channel  
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