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Table 1 Summary table

From: Backscattering UWB/UHF hybrid solutions for multi-reader multi-tag passive RFID systems

  Single-reader Multi-reader
  Enhanced Q-algorithm Compressive sensing Enhanced Q-algorithm Compressive sensing
UHF ∙ Tag energization; ∙ Tag energization; ∙ Tag energization; ∙ Tag energization;
  ∙ Tag synchronization; ∙ Tag synchronization; ∙ Tag synchronization; ∙ Tag synchronization;
  ∙ Inventory and control commands; ∙ Special command for ∙ Inventory and control ∙ Special command for
   UHF CS decoding (CSQuery); commands; UHF CS decoding (CSQuery);
  ∙ Online power control;   ∙ Online power control; ∙ Single-frequency operations;
    ∙ Multi-frequency operations;  
UWB ∙ Tag population estimation; ∙ Tag population estimation; ∙ Readers’ communication/ cooperation; ∙ Readers’ communication/ cooperation;
  ∙ Ranging; ∙ Multi-code for tag groups identification ∙ Readers synchronization; ∙ Readers synchronization;
  ∙ Multi-code-aided estimation;   ∙ Tag population estimation; ∙ Multi-code for tag groups identification;
    ∙ Ranging;