This is the git repository for software defined RFID reader for USRP2. This work is based on Gen2 project (www.cgran.org/wiki/Gen2). Tested on: Ubuntu 10.10 (2.6.35-22-generic) GNU Radio 3.6.2 Hardware: gen2_reader: USRP N210, USRP RFX900 daughterboard, Two Alien ALR-8696-C circular polarized antennas. For more information: Yuanqing Zheng, Mo Li, "ZOE: Fast Cardinality Estimationn for Large-Scale RFID Systems", In Proc. of IEEE INFOCOM, 2013. Contact: Yuanqing Zheng (yuanqing1@ntu.edu.sg) PhD Candidate, School of Computer Engineering, Nanyang Technological University http://pdcc.ntu.edu.sg/wands/yqzheng/