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Survey of Standardized ISO 18000-6 RFID Anti-collision Protocols

The Radio Frequency Identification (RFID) technology has evolved rapidly in the past few years, due to great industry and scientific community investments. This paper has as its main objectives the complete descriptions and the performance comparison of the anti-collision algorithms of signals coming from the tags of the ISO 18000-6 and EPCglobal Gen2 standards. In our knowledge none of previous work in the literature emphasizes this point that is very important and has great impact to the industry, new researches and new developments. For each type of the standard ISO 18000-6 (A, B and C) a new anti-collision algorithm is specified. Through the algorithm study it was concluded that under certain circumstances the detection (reading) of all tags present in the same place is not guaranteed.