Proposal of MQTT distributed broker control mechanism

As the use of the IoT becomes widespread, the speed of data aggregation from end devices and data linkages between clouds becomes critical. In IoT services, vast amounts of data are often aggregated from tiny amounts of data generated from a large number of end devices. Therefore, if an IoT service is adopted in the current network infrastructures, a significant overhead is inevitable, such as through activities including name resolution using DNS in IP. In addition, as the header size in HTTP packets is relatively large, the load on the network further increases. To solve these problems, Information Centric networking (ICN) is being widely studied. Unlike the IP, the ICN aims to reduce the load on the network and shorten the data access time from the clients by distributing the data. In this study, we examined the mechanism of data linkage by using the following: (i) the MQ telemetry transport (MQTT) included in the ICN and (ii) shared memory blocks in the interworking points. From the experimental results obtained, we confirm that the clients in the proposed network configuration can acquire data with a uniform data access time independent of the number of interworking points.