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http://dx.doi.org/10.5762/KAIS.2011.12.9.4133

A Reliable Data Capture in Multi-Reader RFID Environments  

Lee, Young-Ran (Division of IT Education, Sunmoon University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.9, 2011 , pp. 4133-4137 More about this Journal
Abstract
Reliable Multi-Reader RFID identification is one of issues in Multi-Reader RFID realization program in recent. And the Multi-Reader RFID reader has difficulty to obtain reliable data in data capture layer. The reason is that unreliable readings such as a false positive reading and a false negative reading and missed readings can happen by reader collision problems, noise, or the mobility of tagged objects. We introduce performance metrics to solve these reader problems. We propose three solutions the Minimum Overlapped Read Zone (MORZ) with Received Signal Strength Indicator (RSSI), the Spatial-Temporal Division Access (STDA) method, and double bigger size of tags attached on the object. To show the improvement of the proposed methods, we calculate tag's successful read rates in a smart office, which consists of Multi-Reader RFID systems.
Keywords
RFID reader; Performance; Reliability; RSSI;
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