ÇѱÛÁ¦¸ñ(Korean Title) |
µ¿ÀûÀÎ °íÁ¤ ¹× °¡º¯ Àü¼ÛÀ² ¼ºñ½º¸¦ À§ÇÑ ´ÙÁß ¼ºñ½º ³×Æ®¿öÅ© ½ºÀ§Ä¡ÀÇ ¼º´É ºÐ¼® |
¿µ¹®Á¦¸ñ(English Title) |
Performance Evaluation of Multiservice Network Switch for Dynamic Constant-and Adaptive-rate Services |
ÀúÀÚ(Author) |
ÀÌÅÂÁø
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 9-C NO. 03 PP. 0399 ~ 0406 (2002. 06) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â °íÁ¤ Àü¼ÛÀ² ¼ºñ½º ¹× °¡º¯ Àü¼ÛÀ² ¼ºñ½º È£µéÀÌ µ¿ÀûÀ¸·Î ³×Æ®¿öÅ©¿¡ µé¾î¿Í¼ µ¥ÀÌÅ͸¦ Àü¼ÛÇÏ°í, µ¥ÀÌÅ͸¦ ¸ðµÎ Àü¼ÛÇÏ¸é ³×Æ®¿öÅ©¿¡¼ »ç¶óÁö´Â µ¿ÀûÀÎ ´ÙÁß ¼ºñ½º ³×Æ®¿öÅ©¿¡¼, °íÁ¤ Àü¼ÛÀ² ¹× °¡º¯ Àü¼ÛÀ² ¼ºñ½ºÀÇ ¿ä±¸ ¼º´ÉÀ» ¸¸Á·Çϱâ À§ÇÑ ³×Æ®¿öÅ© ½ºÀ§Ä¡(¸µÅ©)ÀÇ ¼º´É ºÐ¼® ¹× ¼³°è ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. ¸ÕÀú µ¿ÀûÀÎ ´ÙÁß ¼ºñ½º ³×Æ®¿öÅ©ÀÇ ¸µÅ©¸¦ Markov üÀÎÀ» ÀÌ¿ëÇØ ¸ðµ¨ÇÏ°í, QBD (Quasi-Birth-Death) ÇÁ·Î¼¼½º¿Í Çà·Ä ¹æÁ¤½ÄÀ» ÀÌ¿ëÇØ °¡º¯ Àü¼ÛÀ² ¼ºñ½ºÀÇ È£µé¿¡ ÇÒ´çµÉ Àü¼ÛÀ²ÀÇ ¼º´ÉÀ» ±¸ÇÑ´Ù. Áï, °¡º¯ Àü¼ÛÀ² ¼ºñ½ºÀÇ Æò±Õ È£¼ö¸¦ ÃßÁ¤ÇÏ°í À̸¦ ¹ÙÅÁÀ¸·Î, È£´ç Æò±Õ Àü¼ÛÀ² ¹× Æò±Õ Àü¼Û Áö¿¬ ½Ã°£À» ±¸ÇÑ´Ù. °íÁ¤ Àü¼ÛÀ² ¼ºñ½ºÀÇ ¼º´ÉÀº °íÁ¤ Àü¼ÛÀ² ¼ºñ½º È£µéÀÇ Â÷´Ü È®·ü(blocking probability)·Î ±¸ÇØÁø´Ù. ÀÌ·¸°Ô Çؼ ±¸ÇØÁø °íÁ¤ Àü¼ÛÀ² ¹× °¡º¯ Àü¼ÛÀ² ¼ºñ½ºÀÇ ¼º´ÉÀ» ÀÌ¿ëÇؼ, °íÁ¤ Àü¼ÛÀ² ¹× °¡º¯ Àü¼ÛÀ² ¼ºñ½º È£µéÀÇ ¿ä±¸ ¼º´É(Àü¼ÛÀ², Àü¼Û Áö¿¬ ½Ã°£, È£ÀÇ Â÷´Ü È®·ü µî)À» ¸¸Á·Çϱâ À§ÇÑ ³×Æ®¿öÅ© ¸µÅ©ÀÇ ¿ë·®À» ¼³°èÇÏ´Â ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. ÀÌ·¯ÇÑ ¹æ¹ýÀ» µ¥ÀÌÅÍ ¹× À½¼º(ºñµð¿À)À» µ¿½Ã¿¡ Áö¿øÇÏ´Â ³×Æ®¿öÅ© ½ºÀ§Ä¡ÀÇ ¼º´É ºÐ¼® ¹× ¿ë·® ¼³°è¿¡ ÀÌ¿ëÇÒ ¼ö ÀÖ´Ù. |
¿µ¹®³»¿ë (English Abstract) |
We consider design of multiservice network link, in which connections of constant- and adaptive-rate services arrive and leave dynamically. We propose performance analysis and design methods of these dynamic multiservice networks. A multiservice network link is modeled by a Markov chain, and data rates for adaptive-rate connections are derived using QBD (Quasi-Birth-Death) processes and matrix-geometric equations. We estimate average number of adaptive-rate connections, average data rate and average connection delay. The performance of constant-rate connections is determined from the blocking probability of the connections. Based on the performance of constant-and adaptive- rate connections, we propose a design methods of a network link to satisfy performance requirements of constant- and adaptive-rate connections (data rates, delay, blocking probability). Our methods can be used for the analysis and design of network switch supporting dynamic data and voice (video) traffic simultaneously. |
Å°¿öµå(Keyword) |
´ÙÁß ¼ºñ½º ³×Æ®¿öÅ©
Multiservice Networks
°íÁ¤ Àü¼ÛÀ² ¼ºñ½º
Constant rate service
°¡º¯ Àü¼ÛÀ² ¼ºñ½º
Adaptive rate Service
Markov üÀÎ
Markov chain
QBD ÇÁ·Î¼¼½º
QBD process
|
ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
|