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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö I : Á¤º¸Åë½Å

Á¤º¸°úÇÐȸ ³í¹®Áö I : Á¤º¸Åë½Å

Current Result Document : 54 / 102 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ½Å·Ú¼º ÀÖ´Â µ¥ÀÌÅÍ Àü´ÞÀ» À§ÇÑ GPSR ÇÁ·ÎÅäÄÝÀÇ °³¼± ¹æ¾È
¿µ¹®Á¦¸ñ(English Title) An Enhancement of the Greedy Perimeter Stateless Routing Protocol for Reliable Data Delivery
ÀúÀÚ(Author) Àӿϼ±   ±è¼®Çü   ¼­¿µÁÖ   ±Çµ¿Èñ   Wan-Seon Lim   Sok-Hyong Kim   Young-Joo Suh   Dong-Hee Kwon  
¿ø¹®¼ö·Ïó(Citation) VOL 38 NO. 03 PP. 0163 ~ 0169 (2011. 06)
Çѱ۳»¿ë
(Korean Abstract)
±×¸®µð Æ÷¿öµù(Greedy forwarding) ±â¹ýÀº ¼ö½Å ³ëµå º° ¶ó¿ìÆà °æ·Î¸¦ »ç¿ëÇÏÁö ¾Ê°í ÁÖº¯ ³ëµåµéÀÇ Á¤º¸¸¸À» ÀÌ¿ëÇØ ÆÐŶÀ» Àü´ÞÇÏ´Â ¶ó¿ìÆà ±â¹ýÀÌ´Ù. ±×¸®µð Æ÷¿öµù ±â¹ý¿¡¼­´Â °¢ ³ëµåµéÀÌ ÀÚ½ÅÀÇ À§Ä¡¸¦ ºñÄÜ ¸Þ½ÃÁö¿¡ ´ã¾Æ¼­ ÁÖ±âÀûÀ¸·Î Àü¼ÛÇÑ´Ù. ±×¸®°í ÀÌ·¸°Ô ¼ö½ÅÇÑ À§Ä¡ Á¤º¸¸¦ ¹ÙÅÁÀ¸·Î ÆÐŶÀ» Àü´ÞÇÒ ¶§ ¼ö½Å ³ëµå¿Í °¡Àå °¡±î¿î ³ëµå¸¦ Àü´Þ ³ëµå·Î ¼±ÅÃÇÑ´Ù. ÇÏÁö¸¸ ³ëµåµéÀÇ ¿òÁ÷ÀÓÀÌ ¸¹Àº »óȲ¿¡¼­´Â ÀÌ¿ô ³ëµåÀÇ À§Ä¡°¡ ºó¹øÇÏ°Ô º¯ÇÏ°Ô µÇ°í, ÀÌ °æ¿ì °æ¿ì¿¡´Â µ¥ÀÌÅÍ Àü´ÞÀÇ ½Å·Úµµ°¡ ½É°¢ÇÏ°Ô ÀúÇ쵃 ¼ö ÀÖ´Ù. º» ³í¹®¿¡¼­´Â ±×¸®µð Æ÷¿öµù ±â¹ÝÀÇ ´ëÇ¥ÀûÀÎ ¶ó¿ìÆà ÇÁ·ÎÅäÄÝÀÎ Greedy Perimeter Stateless Routing(GPSR)À» ±â¹ÝÀ¸·Î, ½Å·Ú¼º ÀÖ´Â µ¥ÀÌÅÍ Àü´ÞÀ» À§ÇÑ »õ·Î¿î ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ±â¹ýÀº ¶ó¿ìÆà °èÃþ°ú MAC °èÃþÀÇ °èÃþ°£ ¿¬µ¿À» ÅëÇØ º¸´Ù ¾ÈÁ¤ÀûÀ̸鼭µµ È¿À²ÀûÀÎ ¶ó¿ìÆà °æ·Î¸¦ ã´Â °ÍÀ» ¸ñÇ¥·Î ÇÑ´Ù. ½ÇÇè °á°ú¸¦ ÅëÇØ ¿ì¸®´Â Á¦¾ÈÇÏ´Â ±â¹ýÀÌ GPSR°ú ±âÁ¸ÀÇ ¿¬±¸ °á°úµé¿¡ ºñÇØ ´õ ¶Ù¾î³­ ¼º´ÉÀ» º¸ÀÌ´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
A greedy forwarding scheme is a routing scheme that forwards data packets by using local information of neighbors instead of using per-destination routing entries. With the greedy forwarding scheme, each node periodically broadcasts a beacon message including its position information. Based on the position information, each node selects a neighbor node located closest to the destination node as the next forwarder. However, when the mobility of nodes is high, positions of neighbor nodes change frequently, and the reliability of data delivery may seriously degrade. In this paper, based on Greedy Perimeter Stateless Routing (GPSR) protocol which is the most representative routing protocol that uses greedy forwarding, we propose a new scheme for reliable data delivery. The proposed scheme aims to find stable and efficient routing path by cross-layering between routing layer and MAC layer. Our simulation results show that the proposed scheme outperforms the legacy greedy forwarding and its variants.
Å°¿öµå(Keyword) ±×¸®µð Æ÷¿öµù   ¾ÖµåȤ ³×Æ®¿öÅ©   ¶ó¿ìÆà ÇÁ·ÎÅäÄÝ   Greedy forwarding   Ad-hoc network   Routing protocol  
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