-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The USRP has a maximum bandwidth of about 16 MHz (using 8-bit samples instead of the usual 16), which is not even enough to cover one 802.11b/g channel (22 MHz Nyquist). Thus you'll have a hard time decoding b/g packets at faster than 1,2 Mbit rates (BBN has done some work facilitating the recovery of these packets).
On top of that, an (extremely, I think) optimistic lower bound for latency in a GNU radio system is over 1 millisecond from the RX antenna through the FPGA over the USB to the computer to your software back over the USB and out the TX antenna. This makes it _reallllllly_ hard to get the 10 _microsecond_ turnaround required for an 802.11b ACK, and carrier sense is meaningless with such a latency. Also, see Tom Rondeau's email of 12/05/2006 for more comments, but the short of it is that you're unlikely to be able to get any sort of reasonable interoperation between the USRP and commercial 802.11b/g hardware. - -Dan -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGw67By9GYuuMoUJ4RAqhgAKDENetmsE0mIa9dw3JyE787xo8KMQCfX+Pf Odcvnn/HpAQ8PDahyfKt0Fo= =Hre7 -----END PGP SIGNATURE----- _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
