Hierarchical multiobjective approach for optimising RFID reader deployment

Radio frequency identification (RFID) systems have received increased attention from academia and practitioners. RFID facilitates data acquisition and storage; it can provide accurate and real-time data without human intervention. This work proposes a new approach based on multi-level strategy with the aim to solve the deployment of RFID readers problem by focusing on the coverage, the interference and the number of deployed readers as the main objectives to optimise. In this way, speed constrained multi-objective particle swarm optimisation algorithm (SMPSO) is adopted in order to minimise the total number of readers required to identify all tags in a given area. The proposed multilevel approach based on SMPSO Algorithm is more efficient and converge rapidly which makes it ideal for our research involving optimal deployment of RFID readers. The simulation results show the effectiveness of the proposed approach.