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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 : 7 / 10 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ÀÓº£µðµå ¸¶¸£ÄÚÇÁ üÀÎÀ» ÀÌ¿ëÇÑ µ¿Àû ½ºÆåÆ®·³ Á¢¼Ó ¹æ½ÄÀÇ ¼º´É ºÐ¼®
¿µ¹®Á¦¸ñ(English Title) Performance of Dynamic Spectrum Access Scheme Using Embedded Markov Chain
ÀúÀÚ(Author) ÀÌÀ¯Å   Yutae Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 17 NO. 09 PP. 2036 ~ 2040 (2013. 09)
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(Korean Abstract)
º» ³í¹®Àº µ¿ÀÏÇÑ È®·üÀû Ư¼ºÀ» °®´Â µÎ °³ÀÇ µ¶¸³µÈ ä³ÎÀÌ Àִ ȯ°æ¿¡¼­ µ¿Àû ½ºÆåÆ®·³ Á¢¼Ó ¹æ½ÄÀÇ ¼º´ÉÀ» ¼öÇÐÀûÀ¸·Î ºÐ¼®ÇÑ´Ù. ¿©±â¼­ °í·ÁÇÏ´Â µ¿Àû ½ºÆåÆ®·³ Á¢¼Ó ¹æ½ÄÀº ´ÙÀ½°ú °°´Ù. ù ¹ø° ¹æ½ÄÀº Àü¼Û¿¡ ¼º°øÇÑ °æ¿ì µ¿ÀÏÇÑ Ã¤³ÎÀ» ´Ù½Ã ¼¾½ÌÇÏ°í, ½ÇÆÐÇÑ °æ¿ì ´Ù¸¥ ä³ÎÀ» ¼¾½ÌÇÏ´Â ¹æ½ÄÀÌ´Ù. µÎ ¹ø° ¹æ½ÄÀº Àü¼Û¿¡ ½ÇÆÐÇÑ °æ¿ì µ¿ÀÏÇÑ Ã¤³ÎÀ» ´Ù½Ã ¼¾½ÌÇÏ°í, ¼º°øÇÑ °æ¿ì ´Ù¸¥ ä³ÎÀ» ¼¾½ÌÇÏ´Â ¹æ½ÄÀÌ´Ù. º» ³í¹®Àº µÎ ¹ø° ¹æ½Ä¿¡¼­ ÀÌÂ÷ »ç¿ëÀÚÀÇ ½Ã½ºÅÛ Ã³¸®À²°ú ÀÏÂ÷ »ç¿ëÀÚ¿ÍÀÇ °ãħ È®·üÀ» 3Â÷¿ø ÀÓº£µðµå ¸¶¸£ÄÚÇÁ üÀÎÀ» ÀÌ¿ëÇÏ¿© ¼öÇÐÀûÀ¸·Î ºÐ¼®ÇÑ´Ù. ¶ÇÇÑ, µÎ ¹æ½ÄÀÇ ¼º´ÉÀ» ¼öÇÐÀû ºÐ¼®°ú ½Ã¹Ä·¹À̼ÇÀ» ÅëÇØ ºñ±³ÇÑ´Ù.
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(English Abstract)
In this paper, we consider two dynamic spectrum access schemes in cognitive network with two independent and identically distributed channels. Under the first scheme, secondary users switch channel only after transmission failure. On the other hand, under the second one, they switch channel only after successful transmission. We develop a mathematical model to investigate the performance of the second one and analyze the model using 3-dimensional embedded Markov chain. Numerical results and simulations are presented to compare between the two schemes.
Å°¿öµå(Keyword) µ¿Àû ½ºÆåÆ®·³ Á¢¼Ó   ÀÓº£µðµå ¸¶¸£ÄÚÇÁ üÀΠ  ¼º´É ºÐ¼®   ÀÎÁö ¹«¼±¸Á   Dynamic Spectrum Access   Embedded Markov Chain   Performance Evaluation   Cognitive Network  
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