Continuous Scanning with Mobile reader Estimate the tag density 70 只60 a50 p=30 If the reader 's power pw is set to a certain value the number of identified tags per cycle nc is varying as the tag s30 density p varies, with a very small 20 standard deviation 己10 20222 26 Reader power p (dBm) p Due to the small variance of nc, there Le is a very stable pattern betweennc Pland p that varies with p Table 1: The number of identified tags per cycleContinuous Scanning with Mobile Reader • Estimate the tag density If the reader’s power pw is set to a certain value, the number of identified tags per cycle nc is varying as the tag density ρ varies, with a very small standard deviation. Due to the small variance of nc, there is a very stable pattern between nc and ρ that varies with pw