Key Issues of RFID Reader Network System

RFID system is used widely in different applications and comes in a myriad of forms today. It is doomed to be concerned by people and still be the hot spot of research in the next few years. In this paper, key issues of RFID reader network system are studied, such as taxonomy of RFID system, collision problems, security and privacy problems, etc. In the fifth section, integration of RFID and WSN (wireless sensor network) is also discussed simply. This paper can be served as a reference and guidance for both novice and experienced RFID researchers.