Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
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¿µ¹®Á¦¸ñ(English Title) |
A Sensing Node Selection Scheme for Energy-Efficient Cooperative Spectrum Sensing in Cognitive Radio Sensor Networks |
ÀúÀÚ(Author) |
°øÆÇÈ
±èÀÚ·æ
Á¶Áø¼º
Fanhua Kong
Zilong Jin
Jinsung Cho
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¿ø¹®¼ö·Ïó(Citation) |
VOL 43 NO. 01 PP. 0119 ~ 0125 (2016. 01) |
Çѱ۳»¿ë (Korean Abstract) |
ÀÎÁö ¹«¼± ±â¼úÀº º¸Á¶ »ç¿ëÀÚ°¡ (SUs) ÁÖ »ç¿ëÀÚ (PUs)¿¡ °£¼·À» ÁÖÁö ¾Ê°í ±âȸÁÖÀÇÀû ¹æ½ÄÀ¸·Î ¶óÀ̼±½º ½ºÆåÆ®·³À» »ç¿ëÇÒ ¼ö ÀÖ´Â ±â¼úÀÌ´Ù. ÀÎÁö ¶óµð¿ÀÀÇ ÇÙ½É ±â¼úÀº ½ºÆåÆ®·³ ¼¾½ÌÀÌ´Ù. ±×·¯³ª ÀÎÁö ¹«¼± ¼¾¼ ³×Æ®¿öÅ©¿¡¼ ¿¡³ÊÁö È¿À²ÀûÀÎ ½ºÆåÆ®·³ ¼¾½Ì ±â¹ý¿¡ ´ëÇÑ ¿¬±¸´Â ¸¹Áö ¾Ê´Ù. º» ³í¹®¿¡¼´Â Ŭ·¯½ºÅÍ ±â¹ÝÀÇ ÀÎÁö ¹«¼± ¼¾¼ ³×Æ®¿öÅ©¸¦ À§ÇÑ ¿¡³ÊÁö È¿À²ÀûÀÎ Çù·Â ½ºÆåÆ®·³ ¼¾½Ì ³ëµå ¼±Åà ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ±â¹ý¿¡¼, ÇãÀ§ °æº¸ È®·ü ¹× ¿¡³ÊÁö ¼Òºñ¸¦ ÃÖÀûÈÇϱâ À§ÇÏ¿© Ŭ·¯½ºÅÍ ³» ½ºÆåÆ®·³ ¼¾½Ì ³ëµåµéÀÇ ¼ö¸¦ ÃÖ¼ÒÈÇÏ°Ô µÈ´Ù. ½Ã¹Ä·¹ÀÌ¼Ç °á°ú¸¦ ÅëÇÏ¿© º» ³í¹®¿¡¼ Á¦¾ÈÇÑ ÃÖÀûÀÇ ½ºÆåÆ®·³ ¼¾½Ì ³ëµå ¼ö¸¦ Àû¿ëÇϹǷΠ½ºÆåÆ®·³ ¼¾½Ì È¿À²¼ºÀÌ Çâ»óµÇ¾ú°í, ¶ÇÇÑ ³×Æ®¿öÅ©ÀÇ ¿¡³ÊÁö È¿À²¼ºµµ º¸ÀåµÈ °ÍÀ» °ËÁõÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
Cognitive radio technology can allow secondary users (SUs) to access unused licensed spectrums in an opportunistic manner without interfering with primary users (PUs). Spectrum sensing is a key technology for cognitive radio (CR). However, few studies have examined energy-efficient spectrum sensing in cognitive radio sensor networks (CRSNs). In this paper, we propose an energy-efficient cooperative spectrum sensing nodes selection scheme for cluster-based cognitive radio sensor networks. In our proposed scheme, false alarm probability and energy consumption are considered to minimize the number of spectrum sensing nodes in a cluster. Simulation results show that by applying the proposed scheme, spectrum sensing efficiency is improved with a decreased number of spectrum sensing nodes. Furthermore, network energy efficiency is guaranteed and network lifetime is substantially prolonged.
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Å°¿öµå(Keyword) |
ÀÎÁö ¹«¼± ¼¾¼ ³×Æ®¿öÅ©
Ŭ·¯½ºÅ͸µ
½ºÆåÆ®·³ ¼¾½Ì
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cognitive radio sensor network
clustering
spectrum sensing
network lifetime
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