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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) MQTT Broker¿¡¼­ ¿ì¼±¼øÀ§¿¡ µû¸¥ ¸Þ½ÃÁö 󸮸¦ À§ÇÑ ¹æ¹ý¿¡ °üÇÑ ¿¬±¸
¿µ¹®Á¦¸ñ(English Title) Method for Message Processing According to Priority in MQTT Broker
ÀúÀÚ(Author) ±è¼ºÁø   ¿ÀâÇå   Sung-jin Kim   Chang-heon Oh  
¿ø¹®¼ö·Ïó(Citation) VOL 21 NO. 07 PP. 1320 ~ 1326 (2017. 07)
Çѱ۳»¿ë
(Korean Abstract)
ÃÖ±Ù IoT´Â Á¦ÇÑµÈ ³×Æ®¿öÅ© ȯ°æ¿¡¼­ÀÇ µð¹ÙÀ̽º Åë½ÅÀ» ÃæÁ·½ÃÅ°±â À§ÇØ °æ·®È­ ÇÁ·ÎÅäÄÝ¿¡ ´ëÇÑ ¿¬±¸°¡ ÁøÇàÁßÀÌ´Ù. MQTT´Â ´ëÇ¥ÀûÀÎ °æ·®È­ ÇÁ·ÎÅäÄÝÀ̸ç, ¿À¹öÇìµå¸¦ ÃÖ¼ÒÈ­Çϱâ À§ÇØ ÀÛÀº °íÁ¤ Çì´õ¸¦ Áö¿øÇÏ°í, publish/subscribe±¸Á¶¸¦ äÅÃÇÔÀ¸·Î½á ½Ç½Ã°£¼ºÀ» º¸ÀåÇÑ´Ù. ÇÏÁö¸¸ MQTT´Â Áß¿ä µ¥ÀÌÅÍ¿¡ ´ëÇÑ ¿ì¼±¼øÀ§ 󸮸¦ Áö¿øÇÏÁö ¾Ê¾Æ ƯÁ¤ IoT ¼­ºñ½º¿¡¼­ÀÇ QoS¸¦ Á¦°øÇÒ ¼ö ¾ø´Ù. º» ³í¹®¿¡¼­´Â MQTT¿¡¼­ ´Ù¾çÇÑ IoT ¼­ºñ½ºÀÇ ¿ì¼±¼øÀ§¸¦ °í·ÁÇϱâ À§ÇÑ ¸Þ½ÃÁö ó¸® ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ¹æ¹ýÀº ³ëµå¿¡¼­ MQTTÀÇ °íÁ¤Çì´õ¿¡ ¿ì¼±¼øÀ§ Ç÷¡±×¸¦ Ãß°¡ÇÏ¿© ¸Þ½ÃÁö¸¦ Àü¼ÛÇϸç, broker¿¡¼­´Â ÇØ´ç ¸Þ½ÃÁö¿¡ ´ëÇÑ ¿ì¼±¼øÀ§¸¦ È®ÀÎÇÏ¿© ¿ì¼±ÀûÀ¸·Î ó¸®ÇÑ´Ù. ½ÇÇè ¹× Æò°¡¸¦ ÅëÇØ ¿ì¼±¼øÀ§¿¡ µû¶ó ³ëµå°£ÀÇ Á¾´Ü °£ Áö¿¬ÀÇ °¨¼Ò¸¦ È®ÀÎÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
Recently, IoT has been studying a lightweight protocol to satisfy device communication in a limited network environment. MQTT is a typical lightweight protocol. It supports small fixed headers to minimize overhead, and adopts publish/subscribe structure to guarantee real-time performance. However, MQTT does not support prioritization of important data and can not provide QoS in a specific IoT service. In this paper, we propose a message processing method to consider the priority of various IoT services in MQTT. In the proposed method, the priority flag is added to the fixed header of the MQTT in the node to transmit the message, and the broker confirms the priority of the corresponding message and processes it preferentially. Through experiment and evaluation, we confirmed the reduction of end-to-end delay between nodes according to priority.
Å°¿öµå(Keyword) IoT   MQTT   broker   ¿ì¼±¼øÀ§   QoS   MQTT   broker   priority  
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