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Table 1 How RFID protocols handle the two phases of tag identification

From: Exploiting joint sparsity in compressed sensing-based RFID

 

Phase 1

Phase 2

 

Tag acquisition

Data read-out

FSA

Schedule responses into time slots (avoid collisions)

Sequential (list)

Buzz

Concurrent responses, CS measurement (exploit collisions)

Simultaneous (rate-less code)

CSF

Concurrent responses, CS measurement (exploit collisions)

Not required

CSR

Concurrent responses, CS measurement (exploit collisions)

Sequential or simultaneous