naa a22 4500 510792596 CHVBK 20180411083325.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11277-012-0973-z doi (NATIONALLICENCE)springer-10.1007/s11277-012-0973-z A Low-Collision CSMA-Based Active RFID for Tracking Applications [Elektronische Daten] [Dawood Moeinfar, Hossein Shamsi] Hardware complexity, active Tag power consumption, and Multiple Tags collection method are three critical parameters in all active radio frequency identification systems. In this work, both the MCU and RF operations are performed in single chip, which makes the Tag hardware smaller. A lot amount of energy is restored by setting Tags in the sleep mode in the most of times. Four commands are used for this system. At first, a unique ID is dedicated to each Tag by the ID allocation command. The polling command is implemented for searching desired Tags. By using of the ID clearing command, the object loses the passing permission for a given time or permanently. Utilizing the collection command, the information of all surrounding Tags are collected and monitored, simultaneously. The Carrier Sense Multiple Access method is used and its performance is evaluated. The maximum transmission range of 80m at the output power of 4.5dBm is obtained. An active Tag with unique ID is mounted on each vehicle. Receiver sensitivity of 97dBm and current consumption of 1 $$\mu \text{ A}$$ in the sleep mode and 29.6mA in the active mode are reported. Springer Science+Business Media New York, 2013 Radio frequency Identification (RFID) nationallicence CC2530 nationallicence Active tags nationallicence Collection nationallicence Back-off nationallicence Carrier sense multiple access (CSMA) nationallicence Clear Channel assessment (CCA) nationallicence IEEE 802.15.4 nationallicence Sleep mode nationallicence Moeinfar Dawood Electrical Faculty, Payame Noor University (PNU), 438, Mahabad, Iran aut Shamsi Hossein Electrical Faculty, K.N.Toosi University of Technology, Seyedkhandan, Dr. Shariati Ave, 16315-1355, Tehran, Iran aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/4(2013-08-01), 2827-2847 0929-6212 71:4<2827 2013 71 11277 https://doi.org/10.1007/s11277-012-0973-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0973-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Moeinfar Dawood Electrical Faculty, Payame Noor University (PNU), 438, Mahabad, Iran aut NATIONALLICENCE 700 1- Shamsi Hossein Electrical Faculty, K.N.Toosi University of Technology, Seyedkhandan, Dr. Shariati Ave, 16315-1355, Tehran, Iran aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/4(2013-08-01), 2827-2847 0929-6212 71:4<2827 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer