Performance Evaluation of Slotted Aloha Anti-Collision Protocol for Mobile RFID Tags Identification using NHPP

Radio Frequency Identification(RFID) plays an important role in identifying objects in evolving field oftheinternet of things (IoT).One important issue relates totheidentification of RFIDs. Despite wide research on this topic, not much work is performedin case when objects with RFID tags are mobile. The paperpresents a simulation-based study, employing non-homogeneous Poisson process to model variable number of tags in an interrogation area,to analyze the performance of the slotted aloha anti-collision protocol in themobile RFID tags identification. It is observedthat the maximum throughput of the protocol reduces as the number of tags increases, however, the throughput usually remains higher than that of aloha protocol in static environment.These results will help in developing better probabilistic anti-collision protocols for dynamic environment in future.