Hi all,
I'm working on implementation of MIMO system based on USRP2+UHD.
I used MIMO method #3, which uses 10Mhz and 1PPS external reference clock.
Also multiple USRP2s are connected to one PC though multiple Gbit Ethernet
connections.
I used multiple uhd_single_usrp_source and uhd_single_usrp_sink blocks to
create MIMO.
They are also connected to traditional GR blocks with some modifications.
After aligning two timetags, synchronization is pretty much satisfied.
However, using multiple uhd_single_usrp blocks seems not clever.
I just look over uhd_mimo_source and uhd_mimo_sink block codes.
Are they just for MIMO cable setup?
ps: is there anybody who built a MIMO system with more than two antenna
using USRP2s?
I want to talk with them seriously. =)
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