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ÇѱÛÁ¦¸ñ(Korean Title) Ŭ·¯½ºÅÍ ±â¹Ý ¼¾¼­ ³×Æ®¿öÅ©¿¡¼­ÀÇ ³×Æ®¿öÅ© Ư¼º Á¤º¸¸¦ °í·ÁÇÑ ¹«¼± ä³Î ¼±Åà ±â¹ý
¿µ¹®Á¦¸ñ(English Title) Wireless Channel Selection Considering Network Characteristics in Cluster-based Sensor Networks
ÀúÀÚ(Author) ±è´ë¿µ   ±è¹ü¼®   Á¶Áø¼º   Dae-Young Kim   BeomSeok Kim   Jinsung Cho  
¿ø¹®¼ö·Ïó(Citation) VOL 16 NO. 02 PP. 0007 ~ 0012 (2015. 04)
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(Korean Abstract)
¹«¼± ¼¾¼­ ³×Æ®¿öÅ©ÀÇ ±¸Çö¿¡ È°¿ëµÇ´Â IEEE 802.15.4 Ç¥ÁØÀº À̱âÁ¾ Åë½Å ±â¼úµéÀÌ °øÁ¸ÇÏ´Â 2.4 GHz ISM ´ë¿ªÀ» ±â¹ÝÀ¸·Î µ¿ÀÛÇϸç, ¼ö½Ã·Î º¯ÇÏ´Â ³×Æ®¿öÅ© »óÅ·ΠÀÎÇÑ °£¼·À» ȸÇÇÇÑ Àü¼Û È¿À²ÀÇ Çâ»ó°ú ³×Æ®¿öÅ©ÀÇ »óŸ¦ °í·ÁÇÑ Ã¤³Î ¼±Åà ±â¼úÀÌ ¿ä±¸µÈ´Ù. ¹«¼± ¼¾¼­ ³×Æ®¿öÅ©´Â ´Ù¼öÀÇ ¼¾¼­ ³ëµå·Î ±¸¼ºµÇ¾î ÀÖÀ¸¸ç, È®À强À» À§ÇØ Å¬·¯½ºÅÍ ±â¹ÝÀÇ ³×Æ®¿öÅ© ±¸Á¶¸¦ °¡Áö¸ç, ½ÌÅ© ³ëµå´Â °¢ Ŭ·¯½ºÅ͵éÀÇ ³×Æ®¿öÅ© Ư¼ºÁ¤º¸¸¦ ¼öÁýÇÏ°í ÁÖ±âÀû Äõ¸® ¸Þ½ÃÁö ¹ß¼ÛÀ» ÅëÇØ ÀÌ Á¤º¸µéÀ» ³×Æ®¿öÅ© ÇÊµå ³» Ŭ·¯½ºÅÍ Çìµåµé°ú °øÀ¯ÇÑ´Ù. º» ³í¹®¿¡¼­´Â Ŭ·¯½ºÅÍ Çìµå°¡ ¼öÁýÇÑ ³×Æ®¿öÅ© Á¤º¸¸¦ ±â¹ÝÀ¸·Î Ŭ·¯½ºÅÍ ³»¿¡¼­ÀÇ ³×Æ®¿öÅ© »óŸ¦ ÆľÇÇÏ°í, °è·®È­ µÈ 󸮷® (throughput) ·¹º§, ¼ö½Å½ÅÈ£°­µµ (RSSI) ·¹º§, ±×¸®°í ½Å·Ú¼º (reliability)À» ÆĶó¹ÌÅÍ·Î ÇÏ´Â ¸ñÀûÇÔ¼ö¸¦ ÅëÇØ ÀûÀýÇÑ ¹«¼±Ã¤³ÎÀ» Ŭ·¯½ºÅÍ¿¡¼­ ¼±ÅÃÇÏ´Â ¹æ¾ÈÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈµÈ ¹æ¾ÈÀÌ ³×Æ®¿öÅ© »óÅ º¯È­¿¡¼­µµ µ¥ÀÌÅÍ Àü¼Û È¿À²À» À¯ÁöÇÒ ¼ö ÀÖÀ½À» ÄÄÇ»ÅÍ ½Ã¹Ä·¹À̼ÇÀ» ÅëÇØ °ËÁõÇÏ¿´´Ù.
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(English Abstract)
To provide scalability, wireless sensor network has cluster-based architecture. Wireless sensor network can be implemented based on the IEEE 802.15.4 which is exploited in 2.4GHz ISM frequency band. Since this frequency band is used for various data communication, network status of wireless sensor networks frequently changes according to wireless environment. Thus, wireless channel selection to avoid reduction of transmission efficiency is required. This paper estimates network status using the information that a cluster-head collects in a cluster. Through objective function with throughput, RSSI level and reliability as input parameters, this paper proposes proper wireless channel selection. Simulation results show that the proposed method maintains transmission efficiency even though network status changes.
Å°¿öµå(Keyword) ä³Î ¼±Åà  °£¼·   Ŭ·¯½ºÅÍ   ¹«¼± ¼¾¼­ ³×Æ®¿öÅ©   channel selection   interference   cluster   wireless sensor networks  
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