Research on the Distributed Power Control Algorithm for RFID Readers

This paper presents an enhanced distributed power control algorithm (EDPC) for ratio frequency identification (RFID) reader aiming at the existing power control algorithm (DPC) deficiencies, such as the uncertainties of random backoff, difficult to set up parameters. In order to improve the reader network efficiency and reliability, the proposed EDPC algorithm properly set the reader working time slot, change the reader time-slot selecting mechanism. Simulation and experiment results show that the EDPC algorithm enlarged the reader detection range and shortened detection efficiency, enhanced the whole system performance, comparing to the DAPC and PPC algorithm.