I intend on implementing cooperative beamforming techniques using USRPs (two USRPs send precoded versions of the same symbols to null out transmission at certain directions). I need the two USRPs to be almost perfectly synchronized in time and carrier frequency. What are the available time synchronization and local oscillator synchronization techniques using Gnuradio?
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---------------------------------------------------Mohammed Hassan Karmoose
Teaching Assistant, Electrical Engineering Dept.
Faculty of Engineering, Alexandria University
Al-Horeya Rd, El-Hadara, Alexandria, Egypt - 21544
Tel: (++203)592-1852 | Fax: (++203)592-1853