ÇѱÛÁ¦¸ñ(Korean Title) |
¸ð¹ÙÀÏ ¼¾¼³×Æ®¿öÅ©¿¡¼ ´ÙÁß À̵¿ ³ëµå¸¦ À§ÇÑ °£¼·È¸ÇÇ ±â¹Ý À§Ä¡ÀÎ½Ä |
¿µ¹®Á¦¸ñ(English Title) |
Interference-Avoidance Based Localization for Multiple Mobile Nodes in Mobile Wireless Sensor Networks |
ÀúÀÚ(Author) |
ÀÌÁÂÇü
Á¤Àιü
Joahyoung Lee
Inbum Jung
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 16-C NO. 01 PP. 0091 ~ 0100 (2009. 02) |
Çѱ۳»¿ë (Korean Abstract) |
ÃÖ±Ù À¯ºñÄõÅͽº ȯ°æ¿¡ ´ëÇÑ °ü½ÉÀÌ Áõ´ëµÇ¸é¼ À̸¦ À§ÇÑ ¼¾¼³×Æ®¿öÅ©¿¡ °üÇÑ ¿¬±¸°¡ È°¹ßÇÏ°Ô ÁøÇàµÇ°í ÀÖ´Ù. À̵¿ »ç¿ëÀÚÀÇ À§Ä¡ Á¤º¸¸¦ Á¦°øÇÏ´Â À§Ä¡Àνļºñ½º´Â ¼¾¼³×Æ®¿öÅ©°¡ Á¦°øÇÏ´Â ´ëÇ¥ÀûÀÎ ¼ºñ½ºÀÌ´Ù. ±×µ¿¾È À̵¿ »ç¿ëÀÚÀÇ À§Ä¡Á¤º¸¸¦ ȹµæÇϱâ À§ÇÑ ´Ù¾çÇÑ ±â¹ýµéÀÌ Á¦½ÃµÇ¾î ¿Ô´Ù. ÇÏÁö¸¸ ´ëºÎºÐÀÇ ±â¹ýµéÀº ´ÜÀÏ »ç¿ëÀÚÀÎ °æ¿ì¸¸ °í·ÁÇÏ¿© ¿¬±¸µÇ¾î À̸¦ ´ÙÁß »ç¿ëÀÚÀÎ °æ¿ì·Î È®ÀåÇϱ⿡´Â ¹®Á¦°¡ ÀÖ´Ù. ¿©·¯ À̵¿ »ç¿ëÀÚµéÀÌ ÇÑ Áö¿ª¿¡¼ µ¿½Ã¿¡ À§Ä¡ÀÎ½Ä ÀÛ¾÷À» ¼öÇàÇÏ´Â °æ¿ì¿¡ ¼¾¼³ëµåµéÀÌ ¹ß»ý½ÃÅ°´Â ºñÄÜÀ̳ª ÃÊÀ½ÆÄ µîÀÌ ¼·Î °£¿¡ °£¼·À» ¹ß»ý½Ãų ¼ö ÀÖ´Ù. º» ³í¹®¿¡¼´Â ¿©·¯ À̵¿ »ç¿ëÀÚµéÀÌ µ¿½Ã ´Ù¹ßÀûÀ¸·Î À§Ä¡È®ÀÎ ÀÛ¾÷À» ¼öÇàÇÏ°íÀÚ ÇÏ´Â °æ¿ì¿¡ ¹ß»ý °¡´ÉÇÑ °£¼·À» ȸÇÇÇϵµ·Ï ÇÏ´Â IAL±â¹ýÀ» Á¦¾ÈÇÑ´Ù. IAL±â¹ýÀº ¼¾¼³ëµå°¡ À§Ä¡ÀÎ½Ä ÀÛ¾÷À» ¼öÇàÇϱâ Àü¿¡ ÁÖÀ§¿¡ ÀÖ´Â ¾ÞÄ¿³ëµåµé·ÎºÎÅÍ Çã°¡¸¦ ¹Þµµ·Ï ÇÏ¿© ³ëµå°£ÀÇ °£¼·À» ¹æÁöÇÑ´Ù. À̸¦ À§ÇØ Çã°¡¸¦ ¿äûÇÏ´Â LIPÆÐŶ°ú ¿äûÀ» Àΰ¡ÇÏ´Â LGPÆÐŶÀ» Á¤ÀÇÇÑ´Ù. Ãß°¡ÀûÀ¸·Î ´Ù¸¥ ³ëµåÀÇ À§Ä¡ÀÎ½Ä ÀÛ¾÷À» ¹æÇØÇÒ °¡´É¼ºÀÌ ÀÖ´Â °æ¿ì¿¡´Â LRP ÆÐŶÀ» »ç¿ëÇÏ¿© ³ëµå °£¿¡ °£¼·ÀÌ ¹ß»ýÇÏÁö ¾Êµµ·Ï ÇÑ´Ù. ½ÇÇèÀ» ÅëÇÏ¿© À̵¿ »ç¿ëÀÚ°¡ ´Ù¼öÀÏ °æ¿ì ³ëµå °£¿¡ °£¼·ÀÌ ¸¹ÀÌ ¹ß»ýÇÔÀ» º¸À̸ç Á¦¾ÈÇÏ´Â IAL±â¹ýÀÌ À§Ä¡ÀÎ½Ä ÀÛ¾÷½Ã °£¼·À» ¹æÁöÇÔÀ» º¸ÀδÙ. |
¿µ¹®³»¿ë (English Abstract) |
Given the increased interest in ubiquitous computing, wireless sensor network has been researched widely. The localization service which provides the location information of mobile user, is one of important service provided by sensor network. Many methods to obtain the location information of mobile user have been proposed. However, these methods were developed for only one mobile user so that it is hard to extend for multiple mobile users. If multiple mobile users start the localization process concurrently, there could be interference of beacon or ultrasound that each mobile user transmits. In the paper, we propose IAL, the localization technique with interference avoidance for multiple mobile nodes in mobile wireless sensor networks. In IAL, interference is prevented by forcing the mobile node to get the permission of localization from anchor nodes. For this, we define LIP packet type for localization initiation by mobile node and LGP packet type for localization grant by anchor node. LRP packet type is used to reject localization by anchor node for interference avoidance. The experimental result shows that the number of interference between nodes are increased in proportion to the number of mobile nodes and IAL provides efficient localization. |
Å°¿öµå(Keyword) |
¼¾¼³×Æ®¿öÅ©
À§Ä¡ÀνÄ
´ÙÁß À̵¿ ³ëµå
°£¼·
ȸÇÇ
Sensor Network
Localization
Multiple Mobile Node
Interference
Avoidance
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