TITLE

MQTT Broker에서 우선순위에 따른 메시지 처리를 위한 방법에 관한 연구

AUTHOR(S)
김성진; 오창헌
PUB. DATE
July 2017
SOURCE
Journal of the Korea Institute of Information & Communication En;Jul2017, Vol. 21 Issue 7, p1320
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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.
ACCESSION #
125498836

 

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