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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö I : Á¤º¸Åë½Å

Á¤º¸°úÇÐȸ ³í¹®Áö I : Á¤º¸Åë½Å

Current Result Document : 2 / 6 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ¸ð¹ÙÀÏ P2P ȯ°æ¿¡¼­ È¿À²ÀûÀÎ ³×Æ®¿öÅ© ÀÚ¿ø È°¿ëÀ» À§ÇÑ ¹ÝÀÀÀûÀÎ ÄÚµå
¿µ¹®Á¦¸ñ(English Title) A Reactive Chord for Efficient Network Resource Utilization in Mobile P2P Environments
ÀúÀÚ(Author) À±¿µÈ¿   °ûÈı٠  ±èÁ¤±æ   Á¤±Ô½Ä   Younghyo Yoon   Hukeun Kwak   Cheongghil Kim   Kyusik Chung  
¿ø¹®¼ö·Ïó(Citation) VOL 36 NO. 02 PP. 0080 ~ 0089 (2009. 04)
Çѱ۳»¿ë
(Korean Abstract)
ºÐ»ê Çؽ¬ Å×À̺í(DHT : Distributed Hash Table) ±â¹ÝÀÇ P2P´Â ±âÁ¸ Unstructured P2P ¹æ½ÄÀÇ ´ÜÁ¡À» º¸¿ÏÇϱâ À§ÇÑ ¹æ½ÄÀÌ´Ù. DHT ¾Ë°í¸®ÁòÀ» »ç¿ëÇÏ¸é ºü¸¥ µ¥ÀÌÅÍ °Ë»öÀ» ÇÒ ¼ö ÀÖ°í, ÇǾ¼ö¿¡ ¹«°üÇÏ°Ô °Ë»ö È¿À²À» À¯ÁöÇÒ ¼ö ÀÖ´Ù. DHT ¹æ½ÄÀÇ ÇǾîµéÀº ¶ó¿ìÆà Å×À̺íÀ» ÃÖ½ÅÀ¸·Î À¯ÁöÇϱâÀ§ÇØ ÁÖ±âÀûÀ¸·Î ¸Þ½ÃÁö¸¦ º¸³½´Ù. ¸ð¹ÙÀÏ È¯°æÀÇ °æ¿ì, DHT¹æ½ÄÀÇ ÇǾîµéÀº ¶ó¿ìÆà Å×À̺íÀ» ÃÖ½ÅÀ¸·Î À¯ÁöÇÏ°í ¿äû ½ÇÆи¦ ÁÙÀ̱â À§Çؼ­ ºü¸¥ ÁÖ±â·Î ¸Þ½ÃÁö¸¦ º¸³»¾ß ÇÑ´Ù. ÇÏÁö¸¸ ÀÌ·Î ÀÎÇØ, Àüü ³×Æ®¿öÅ©ÀÇ Æ®·¡ÇÈÀº Áõ°¡ÇÏ°Ô µÈ´Ù. º» ³í¹®¿¡¼­´Â ¸®¾×Ƽºê ¶ó¿ìÆà Å×ÀÌºí ¾÷µ¥ÀÌÆ® ¹æ½ÄÀ» ÀÌ¿ëÇÏ¿© ±âÁ¸ DHT¿¡¼­ÀÇ ¶ó¿ìÆà Å×ÀÌºí ¾÷µ¥ÀÌÆ®¿¡ µû¸¥ ºÎÇϸ¦ ÁÙÀÌ´Â ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. ÁÖ±âÀûÀ¸·Î ÀÚ½ÅÀÇ ¶ó¿ìÆà Å×À̺íÀ» ¾÷µ¥ÀÌÆ®ÇÏ´Â ±âÁ¸ ¹æ½Ä(Proactive)°ú ´Þ¸®, Á¦¾ÈµÈ ¹æ½Ä¿¡¼­´Â µ¥ÀÌÅÍ ¿äûÀÌ µé¾î ¿ÔÀ» ¶§¸¸ ¶ó¿ìÆà Å×À̺íÀ» ¾÷µ¥ÀÌÆ®ÇÏ´Â ¹æ½Ä(Reactive)À» »ç¿ëÇÑ´Ù. Á¦¾ÈµÈ ¹æ½ÄÀº ¹öŬ¸® ´ëÇп¡¼­ ¸¸µé¾îÁø Chord ½Ã¹Ä·¹ÀÌÅÍ(I3)¸¦ ÀÌ¿ëÇÏ¿© ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ½ÇÇèÀ» ÅëÇÏ¿© Á¦¾ÈµÈ ¹æ½ÄÀÌ ±âÁ¸ ¹æ½Ä¿¡ ºñÇØ ¼º´ÉÀÌ Çâ»óµÇ¾úÀ½À» È®ÀÎÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
A DHT(Distributed Hash Table) based P2P is a method that compensates disadvantages of the existing unstructured P2P method. If a DHT algorithm is used, it can do fast data search and maintain search efficiency independent of the number of peers. The peers in a DHT method send messages periodically to keep the routing table updated. In a mobile environment, the peers in a DHT method should send messages more frequently to keep the routing table updated and reduce the failure of requests. However this results in increasing the overall network traffic. In this paper, we propose a method to reduce the update load of a routing table in the existing DHT by updating it in a reactive way. In the proposed reactive method, a routing table is updated only if a data request is coming whereas it is updated periodically in the existing proactive method. We perform experiments using Chord simulator(I3) made by UC Berkely. The experimental results show the performance improvement of the proposed method compared to the existing method.
Å°¿öµå(Keyword) ¸ð¹ÙÀÏ È¯°æ   ºÐ»ê Çؽ¬ Å×ÀÌºí   Chord   ¸®¾×Ƽºê   ÇÁ·Î¾×Ƽºê   ¶ó¿ìÆà Å×ÀÌºí ¾÷µ¥ÀÌÆ®   Mobile Environment   Distributed Hash Table   Chord   Reactive   Proactive   Routing Table Update  
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