Conference Proceedings

An advanced tag detection technique for chipless RFID systems

C Divarathne, N Karmakar

2015 European Microwave Conference (EuMC) | Published : 2015


Chipless RFID systems have been identified as a major candidate to replace optical barcode systems in future. However, the main challenge is its less data encoding capacity. Researchers have attempted to overcome this by mainly improving the chipless tag design and the RFID reader architecture. However, they were using primitive tag detection techniques such as thresholds and moving averages. This paper presents a Maximum Likelihood (ML) based tag detection technique for chipless RFID systems. The detection technique does not require any channel knowledge and it jointly optimizes both the tag detection and the channel. The proposed technique is compatible with both frequency and time domain ..

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