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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 :

ÇѱÛÁ¦¸ñ(Korean Title) È¿À²ÀûÀÎ ÁÖÆļö ÀÌ¿ëÀ» À§ÇÑ ÁÖÆļö °øÀ¯ ¹æ¹ý
¿µ¹®Á¦¸ñ(English Title) A Frequency-Sharing Method to Use Frequency Resources Efficiently
ÀúÀÚ(Author) °­»ó±â   ȲÅÃÁø   Sanggee Kang   Taekjin Hwang  
¿ø¹®¼ö·Ïó(Citation) VOL 12 NO. 08 PP. 1349 ~ 1355 (2008. 08)
Çѱ۳»¿ë
(Korean Abstract)
ÃÖ±Ù¿¡ ZigBee, Bluetooth, RFID(Radio Frequency Identification)¿Í °°Àº ±Ù°Å¸® ¹«¼±Åë½Å ½Ã½ºÅÛ¿¡ ´ëÇÑ ¿¬±¸°¡ È°¹ßÈ÷ ÁøÇàµÇ°í ÀÖÀ¸¸ç, ÀÌ¿Í °°Àº ½Ã½ºÅÛµéÀº ´ëºÎºÐ ¼ÒÃâ·Â¹«¼±±â±âµéÀÌ´Ù. ¹Ì·¡¿¡´Â °³ÀÎÀ» Áß½ÉÀ¸·Î ÇÏ´Â WPAN(Wireless Personal Area Network)À» À§Çؼ­ ´õ ¸¹Àº ¼ÒÃâ·Â¹«¼±±â±âµéÀÌ ÃâÇöÇÒ °ÍÀ̸ç, °£¼·Àú°¨±â¼úÀº ¼ÒÃâ·Â¹«¼±±â±âµéÀÌ ÇÑÁ¤µÈ ÁÖÆļö ÀÚ¿øÀ» È¿À²ÀûÀ¸·Î ÀÌ¿ëÇϱâ À§ÇÑ Çʼö ±â¼úÀÌ µÉ °ÍÀ¸·Î ¿¹»óµÈ´Ù. º» ³í¹®¿¡¼­´Â µÎ °¡ÁöÀÇ ÁÖÆļö¸¦ °øÀ¯ ¹æ¹ýÀ» °í·ÁÇÏ¿´´Ù. ù ¹ø°´Â ÀÌ¹Ì Æ¯Á¤½Ã½ºÅÛ¿¡ ÇÒ´çµÈ ÁÖÆļö¸¦ °øÀ¯ÇÏ´Â °æ¿ìÀÌ°í, µÎ ¹ø°´Â »õ·Î¿î ÁÖÆļö ´ë¿ªÀ» ÇÒ´çÇÏ´Â °æ¿ìÀ̸ç, ÀÌ µÎ °¡Áö °æ¿ì¿¡ ´ëÇÑ È¿À²ÀûÀÎ ÁÖÆļö °øÀ¯ ¹æ¹ýÀ» ¿¬±¸ÇÏ¿´´Ù. ù ¹ø° ¹æ¹ýÀ¸·Î ÁÖÆļö¸¦ °øÀ¯ÇÏ´Â °æ¿ìÀÇ ÇÑ °¡Áö ¿¹·Î¼­ ZigBee, RFID, DCP(Digital Cordless Phone) ¹× Bluetooth°¡ ƯÁ¤ ÁÖÆļö´ë¿ªÀ» °øÀ¯ÇÏ´Â °æ¿ì ÁÖÆļö °øÀ¯ Á¶°ÇÀ» °ËÅäÇÏ¿´´Ù. ±×¸®°í µÎ ¹ø° °øÀ¯ ¹æ¹ý¿¡¼­´Â ¼­·Î ´Ù¸¥ °£¼·Àú°¨±â¼úÀ» »ç¿ëÇÏ´Â Åë½Å½Ã½ºÅÛ¿¡ ´ëÇؼ­ °øÆòÇÑ ½ÅÈ£ ¹æ»çÁ¶°ÇÀ» À¯ÁöÇϱâ À§ÇÑ balancing factorÀÇ °³³äÀ» Á¦¾ÈÇÏ¿´À¸¸ç, FH(Frequency Hopping) ½Ã½ºÅÛÀ» ±âÁØÀ¸·Î ÇÏ´Â °æ¿ì LBT(Listen Before Talk)´Â 0.9, DS(Direct Spreading)Àº 0.8ÀÇ balancing factor¸¦ ÀÌ¿ëÇϸé, ÀÌµé °£¼·Àú°¨±â¼úµé »çÀÌÀÇ ¹æ»çÁ¶°ÇÀ» ºñ½ÁÇÏ°Ô À¯ÁöÇÒ ¼ö Àֱ⠶§¹®¿¡ ÀüüÀûÀ¸·Î ´õ ¸¹Àº ½Ã½ºÅÛÀÌ ÁÖÆļö¸¦ °øÀ¯ÇÒ ¼ö ÀÖÀ½À» º¸¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
Recently many short-range transceiver systems, such as ZigBee, Bluetooth and RFID(Radio Frequency Identification), have been developed. These systems are mostly low-power transceivers. In the near future many more low-power transceivers are appeared for WPAN(Wireless Personal Area Network) and interference mitigation technologies are necessary to the low-power transceivers for using frequency resources efficiently. In this paper we consider two methods for sharing frequency resources. The first case is that a frequency band previously assigned for a certain system is shared and the second case is that the white frequency band is shared. We study the method and conditions for sharing frequency resources in the above two cases. When a frequency band is shared with ZigBee, RFID, DCP(Digital Cordless Phone) and Bluetooth as an example for the first case, the sharing conditions are investigated and the results are presented. We propose a balancing factor to maintain an equal transmitting conditions between systems having a different interference mitigation technique. In the interference simulation we use FH(Frequency Hopping) as a reference system and 0.9 of a balancing factor for LBT(Listen Before Talk) and 0.8 for DS(Direct Spreading). From the simulation results we know that a balancing factor reduces interference probability therefore many more systems can be operated in the same frequency bands compared with the case without using a balancing factor.
Å°¿öµå(Keyword) ¼ÒÃâ·Â¹«¼±±â±â(Low-power transceiver)   ÁÖÆļö°øÀ¯(Spectrum-sharing)   °£¼·Àú°¨±â¼ú(Interference Mitigation Technology)  
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