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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document : 32 / 91 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ¹«¼± ÀüÆÄƯ¼ºÀ» °í·ÁÇÑ Çù·Â À§Ä¡ÃßÁ¤ ¾Ë°í¸®Áò ¼º´ÉºÐ¼®
¿µ¹®Á¦¸ñ(English Title) Performance Analysis of Cooperative Localization Algorithm Considering Wireless Propagation Characteristics
ÀúÀÚ(Author) Á¤½ÂÈñ   ¿ÀâÇå   Seung-heui Jeong   Chang-heon Oh  
¿ø¹®¼ö·Ïó(Citation) VOL 14 NO. 06 PP. 1511 ~ 1519 (2010. 06)
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(Korean Abstract)
º» ³í¹®¿¡¼­´Â ½Ç³»¿Ü ¹«¼± ¼¾¼­³×Æ®¿öÅ© ȯ°æ¿¡¼­ ÀüÆÄƯ¼ºÀ» °í·ÁÇÑ ¼ö½Å½ÅÈ£¼¼±â ±â¹ÝÀÇ Çù·Â À§Ä¡ÃßÁ¤ ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÏ°í ÀÌ¿¡ ´ëÇØ ¼º´ÉÀ» ºÐ¼®ÇÏ¿´´Ù. ±âÁ¸ÀÇ ¼ö½Å½ÅÈ£¼¼±â ±â¹ÝÀÇ À§Ä¡ÃßÁ¤ ±â¹ýÀº Àå¾Ö¹° µî ÀüÆÄȯ°æ¿¡ µû¶ó ½ÅÈ£¼¼±â°¡ ºÒ¾ÈÁ¤ÇÏ¿© ³·Àº À§Ä¡ÃßÁ¤ ½Å·Úµµ¸¦ º¸¿´´Ù. ÀÌ·¯ÇÑ ºÒ¾ÈÁ¤ÇÑ ÀüÆÄȯ°æÀ» ±Øº¹Çϱâ À§ÇØ º» ³í¹®¿¡¼­´Â ±¤¼±¹ß»ç¹ýÀ» ÅëÇØ µµÃâµÈ ÀüÆÄƯ¼º ¿äÀÎÀ» Á¦¾ÈÇÏ´Â Çù·Â À§Ä¡ÃßÁ¤ ¾Ë°í¸®Áò¿¡ ¹Ý¿µÇÏ¿´´Ù. ¶ÇÇÑ Çù·Â À§Ä¡ÃßÁ¤ ¾Ë°í¸®ÁòÀÇ ¼º´ÉÆò°¡¸¦ À§ÇØ 4°³ÀÇ °¡»ó°ø°£¿¡ °íÁ¤À§Ä¡¸¦ ¾Ë°í ÀÖ´Â 4°³ÀÇ Zigbee ³ëµå¿Í À§Ä¡¸¦ ¾ËÁö ¸øÇÏ´Â ¹ÌÁöÀÇ Zigbee ³ëµå 5°³¸¦ ¹èÄ¡ÇÏ¿© ½ÇÇèÇÏ¿´´Ù. ½ÇÇè°á°ú, NLCAÀÇ °æ¿ì 2m-3.5m ¿ÀÂ÷¸¦ º¸¿´À¸³ª º» ³í¹®¿¡¼­ Á¦¾ÈÇÏ´Â CLA/ECLAÀÇ °æ¿ì´Â 1.3m-2.5m/0.5m-1.2m·Î ¼±ÇüÀûÀÎ ¼º´É°³¼±À» º¸¿´´Ù. ±×·¯¹Ç·Î ÀüÆÄƯ¼º ¿äÀÎÀÌ °í·ÁµÇ¾úÀ» °æ¿ì ±âÁ¸ÀÇ ¼ö½Å½ÅÈ£¼¼±â ±â¹Ý À§Ä¡ÃßÁ¤ ¹æ½Ä¿¡ ºñÇØ º» ³í¹®¿¡¼­ Á¦¾ÈÇÏ´Â Çù·ÂÀ§Ä¡ÃßÁ¤ ¹æ½ÄÀÌ º¸´Ù È¿À²ÀûÀÓÀ» È®ÀÎÇÏ¿´´Ù.
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(English Abstract)
In this paper, we proposed and analyzed a RSSI based cooperative localization algorithm considering wireless propagation characteristics in indoor and outdoor environments for wireless sensor networks, which can estimate the BN position. The conventional RSSI based estimation scheme has low precision ranging due to instability propagation characteristics by time variable. Hence, we implemented ray-launching simulator for analysis of propagation characteristics in 4 case, and experimented proposed localization scheme with 4 RN and 1 to 5 BN. Simulation results show that NLCA has estimation error as 2m-3.5m, however, proposed CLA/ECLA has 1.3m-2.5m/0.5m-1.2m by same environments. Therefore, if we can consider channel characteristics, the proposed algorithm provides higher localization accuracy than RSSI based conventional one.
Å°¿öµå(Keyword) Çù·ÂÀ§Ä¡ÃßÁ¤   ±¤¼±¹ß»ç¹ý   ¼ö½Å½ÅÈ£¼¼±â   ÀüÆÄƯ¼º   Cooperative localization   Ray-launching   RSSI   Propagation characteristic  
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