Performance Study on the Existing Pure ALOHA and Modified (Proposed) Pure ALOHA Anti-Collision Protocols for RFID Network

This paper is based on Pure ALOHA protocol in Radio Frequency Identification. Theoretical throughput analysis of the existing pure ALOHA was done and simulation was carried out for the same in the MATLAB. The results on throughput, number of collision and identification time was compared between the existing Pure ALOHA and Proposed Pure ALOHA. In this work, existing pure ALOHA was modified to give a better result. The authors proposed a new algorithm where a reader detects the signal strength of the responding tags and reads the tag with the greater signal strength upon collision thereby reducing the number of collision taking place.