Implementation of Embedded Testbeds Using USRP and GNU-Radio for Performance Measurement and Analysis of PPS and PCO-Based Time Synchronizations. - Hyun Jae Park; Cheol-woong Lee; Taeyoung Shin; Byeong-Hee Roh; Soo Bum Park; Jungwook Choi (Int. J. Interdiscip. Telecommun. Netw., 2021)