Survey of the advances in reader anti-collision algorithms for RFID systems

In RFID systems, applying multiple readers will cause communication conflict or data interference (i.e. reader collision) when the readers within the interference region of each other attempt to access a tag by using the same frequency channel and at the same time. In order to solve this reader collision problem, many reader anti-collision algorithms have been proposed. This paper attempts to globally review of the main reader anti-collision algorithms and to further compare among these algorithms, and discusses the prospect of research and development in reader anti-collision field.