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Off late technological advances have motivated large-scale deployment of RFID systems. However, a number of critical design issues relating to efficient detection of tags remain unresolved. This paper addresses three important problems associated with tag detection in RFID systems: accurately detecting RFID tags in the presence of reader interference (reader collision avoidance problem); eliminating redundant tag reports by multiple readers (optimal tag reporting problem); and minimizing redundant reports from multiple readers by identifying a minimal set of readers that cover all tags present in the system (optimal tag coverage problem).
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