Title :
Evaluation of phase error in a software-defined radio network testbed
Author :
Corum, Steven ; Bonior, Jason D. ; Qiu, Robert C. ; Guo, Nan ; Hu, Zhen
Author_Institution :
Dept. of Electr. & Comput. Eng., Tennessee Technol. Univ., Cookeville, TN, USA
Abstract :
When building a sensor network testbed each system component must be completely understood both in its operation and as a possible source of error. We seek to quantify phase error in the USRP-N210 software-defined radio in order to determine how accurately this error can be calibrated out of a network of USRP-N210 based sensor nodes. We measure the frequency stability of a single tone created using a USRP-N210. We also measure the phase difference between two receivers which have been synchronized and are receiving the same signal.
Keywords :
cognitive radio; wireless sensor networks; USRP-N210 based sensor nodes; frequency stability; phase difference; phase error evaluation; single tone; software-defined radio network testbed; system component; wireless sensor network; Frequency measurement; Phase locked loops; Phase measurement; Receivers; Synchronization; Tomography; Wireless communication;
Conference_Titel :
Southeastcon, 2012 Proceedings of IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-1374-2
DOI :
10.1109/SECon.2012.6196922
