Time-Based CSMA Protocol for Alleviating Collision Problem in RFID System

Radio Frequency Identification (RFID) System admits rapid identification of entities by itself in the discipline of pervasive computing. RFID system comprises readers and tags. Readers are communicating with the tag by broadcasting RF signals. In existing RFID system channel assignment, tag identification and collision is a vital issue. Henceforth efforts are requisite to minimize these issues. This work evaluating the throughput of the RFID system by incorporating time into Carrier Sense Multiple Access (CSMA) protocol. Time based CSMA (TCSMA) depends on CSMA below low contention and TDMA below high contention in RFID system. The performance can be measured by Mat lab simulator. Time Based CSMA improves the tag read rate and also reduces the collision problem when compared to the conventional algorithm. KeywordKey WordsTime, Collision, CSMA, RFID System, TCSMA.