 |
This figure depicts the key-sharing delay performances in the two scenarios.
Besides the encoding delay and the reconstruction delay, key-sharing delay also includes the communication delay between the publisher and the brokers.
As the number of brokers is increased, the key sharing delay also increases.
The primary reason behind this is the corresponding increase in the computational load of publishing n shares corresponding to n topics.
Publishing corresponding to topics requires the connecting, transmitting, and closing operations corresponding to each broker.
Thus, the required number of such operations increase in proportion to the number of brokers.
The key sharing delay of the Raspberry Pi Zero WH board is observed to be greater than that of Raspberry Pi 3 model B+ board due to the lower CPU performance and smaller memory size of the former.
|
IEEE/ICACT20220056 Slide.13
[Big Slide]