An enhanced neighbor-friendly reader anti-collision algorithm in mobile RFID networks

Abstract

In radio frequency identification (RFID) systems with dense mobile RFID readers, reader collision is one of the main issues of interest. The existing anti-collision method called neighbor-friendly reader anti-collision (NFRA) algorithm is simple and easy to make readers aware of neighbors for minimizing reader collision. However, the simple backoff mechanism impairs the utilization rate of mobile readers. To resolve the aforementioned shortage, this paper attempts to propose an enhanced neighbor-friendly reader anti-collision (ENFRA) algorithm. For the sake of comparison, a series of numerical experiments are arranged. The simulation results demonstrate that the proposed ENFRA algorithm is more efficient in obtaining the utilization rate of mobile readers than the canonical NFRA algorithm.