Objectives: The paper presents performance analysis of centralised and decentralised architecture
of IoT sensor networks. Two most popular security mechanisms for Sensor Networks based on their energy
consumption, which may lead to poor performance of the IoT system, are also evaluated. The Internet of
Things (IoT) technology aims to improve easy access to the information needed using devices.
Observations: It has been adopted by many time sensitive systems like self-driving car, automated traffic
control system and so on. However, more study is required to understand performance level of possible IoT
architectures over others.
Results: This paper explains different IoT sensor network architectures and models decentralised Wireless
Senor Networks (WSN) architecture. Simulation of these architectures and their popular security
primitives are compared in terms of their performance. This study can be a great resource to develop an
efficient IoT architecture and security framework with better performance.