Hi all,
I only have one computer and 2 USRPs. I am
trying to run OpenBTS and spectrum analyzer at the same time. OpenBTS uses
libusrp
of GNURadio and spectrum analyzer uses the libusrp as well. Is it ok to run
OpenBTS and
spectrum analyzer at the same time? How can I make OpenBTS choose the right
do to speed up the system
and have not succeeded.
Thank you,
Jane
--- On Thu, 10/8/09, Douglas Geiger wrote:
From: Douglas Geiger
Subject: Re: [Discuss-gnuradio] reducing the latency in tunnel.py
To: "George Nychis"
Cc: "Jane Chen" , discuss-gnuradio@gnu.org
Date: Thu
Hi all,
I would like to send a MAC layer control packet every 4
ms from computer A to computer B to tell B when to send data using USRP
and GNU Radio. It is like TDMA and a frame is 4 ms. I am trying to do
this work by modifying tunnel.py in the gnuradio-example folder. I
removed the carry sensin
Hi all,
I would like to send a MAC layer control packet every 4 ms from computer A
to computer B to tell B when to send data using USRP and GNU Radio. It is
like TDMA and a frame is 4 ms. I am trying to do this work by modifying
tunnel.py in the gnuradio-example folder. I removed the carry sensin
t;root" in the group usrp. The RTT of
tunnel.py is still about 30 ms.
/etc/group
root:x:0:root,useSDR
usrp:x:501:useSDR,root
Does anyone have any idea what's wrong?
Thank you,
Jane
--- On Wed, 8/12/09, Eric Blossom wrote:
From: Eric Blossom
Subject: Re: [Discuss-gnuradio] RT
Hi all,
I ran the tunnel.py, which is one of the gnuradio-examples, on two PCs (fedora
9 (kernel: 2.6.27), GNU Radio 3.2 and Intel Pentium D). The RTT is about
30ms. I read the paper "Enabling MAC Protocol Implementations on
Software-Defined Radios" which is written by George Nychis and found
Hi all,
According to the explaination of the In-band Signaling in the link
http://gnuradio.org/trac/wiki /InBandSignaling, In-band Signaling is what I
need for the MAC layer implementation. I try to find more information about it
on the mailinglist or the Web. I am wondering if In-band Signalin
Hi all,
Memory: 1008.6MiB
CPU: Processor 0: 2.8GHz and Processor 1:2.8GHz
OS: 2.6.27.23-78.2.50.fc.i686 (Fedora 9)
GNU Radio: neither 3.1.3 nor 3.2. (I
download the gnuradio in the trunk several months ago.)
I have two machines, A and B ( the same systems as shown above).
I would like to send o
Hi all,
When I use a simulator, I can easily get the throughput, delay, and packet loss
rate. However, it seems there is no this kind of function in GNU Radio with
USRP. I am wondering how you guys can know the throughput and delay. For
example, if I run tunnel.py, is it possible for me to know
Hi all,
I use gnuradio svn version and USRP1. I modified the simple_mac.py in
https://www.cgran.org/browser/projects/bbn_80211/branches/douggeiger. I got an
error and used pdb to debug. However, I still cannot solve it. Could anyone
please give me some hints how to solve this error?
Thank you,
Hi all,
I ran the 80211_mac/simple_mac.py. I have not succeeded to run the
simple_mac.py. Errors keep happening. I thought simple_mac.py used 802.11 PHY
such as barker codes. I think simple_mac.py does not use the 802.11 PHY after I
read the code again and got the error as following:
# ./sim
Hi all,
On machine A:
The README mentions that I should be able to ssh between the machines, web
browse, etc. I use ifconfig gr0 xxx.xxx.53.230 and ifconfig gr0
xxx..xxx.53.229 to give IP addresses to two machines (A and B). The machine
A connects to the Internet through eth0 with IP addre
Hi all,
My kernel is 2.6.26.6-79.fc9.i686 (Fedor 9)
GNURadio is 3.1.3
I ran the simple_mac.py and got an error as following:
# ./simple_mac.py
Traceback (most recent call last):
File "./simple_mac.py", line 51, in
from transmit_path import transmit_path
ImportError: No module named tr
Hi all,
I tried to subscribe the openbts mailing list, but I did not succeed. I sent
email to dburg...@kestrelsp.com to subscribe the openbts mailing list. Could
anyone please help me solve the following problem?
I tried to run the OpenBTS according to the instruction.
http://www.gnuradio.o
Hi all,
I
installed the OpenBTS and GNURadio (svn trunk). I did the svn update today. I
got a segmentation fault when I ran ./transceiver. I found others
also met this kind of segmentation fault, but I don't find any
solutions for it through google. Could anyone please tell me how to
solve this
Hi all,,
I read the [Discuss-gnuradio] and know that gr.hier_block is gone in current
GNU Radio.
http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg12193.html
I used the command: svn co https://www.cgran.org/cgran/projects/bbn_80211/trunk
bbn_80211
I checked out the bbn trunk and got
Hi all,
I have two USRPs. I would like to implement some functions (RTS and NAV)
in 802.11 MAC. Actually, I want to use RTS to control one of the nodes when to
send out packets. When the node recieves the RTS, it should set up its NAV.
Hence, the node will not send any packets out during the N
Hi all,
Is anyone working on 802.11 with USRP2 ? In
https://www.cgran.org/browser/projects , I found two projects, span_80211b and
bbn_80211; however, they have not been changed for months. Does anyone know any
projects are working on 802.11 with USRP2?
Thank you,
Jane
On Thu, Feb 19, 2009
Hi David,
We (Harvind and I) have no foreseeable plans to use OpenBTS with the USRP2.
There are several reasons we will stick with the USRP1, but if I detail them on
this list I'll risk getting cited for contempt of court. Really.
http://openbts.sourceforge.net/order.pdf
Could you pleas
Hi all,
Is anyone working on OpenBTS with USRP2? On the website,
http://www.gnuradio.org/trac/wiki/OpenBTS/DesktopTestingKit, OpenBTS has not
been used with URSP2. However, USRP2 is new and fast. I think more and more
people are going to use USRP2 to develp their SDR. Should I buy a USRP1
Hi all,
I have several antennas. I cannot distinguish between VERT900 and VERT2450.
There is no figure on the http://www.ettus.com/orderpage.html. Does anyone know
how I can know which antenna is VERT900 which I want to connect to RFX1800?
Thank you,
Jane
_
Hi all,
I am learning AirProbe to decode the GSM signal.
OS: fedora 9 (2.6.25.9)
GnuRadio:3.1.3
Following the link,
https://svn.berlin.ccc.de/projects/airprobe/wiki/WorkingWithTheUSRP, I
ran ./go.sh first_usrp_decim_112.cfile, but the GSM scanner showed
nothing as the attachment.
I have no idea
Hi all,
Because of the tight budget, I only have one GSM phone, one RFX900 daughter
card, and one USRP.
Is it possible to play with the OpenBTS with one RFX900 daughter card instead
of two?
Thank you,
Jane
___
Discuss-gnuradio mailing list
Hi,
Does anyon have the figure of OpenBTSArch.jpg?
Thank you,
Jane
___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Hi Fabian and Martin,
The problem is solved. Thank you so much for your time and help!!
Regards,
Jane
Martin Dvh wrote:
> Jane Chen wrote:
>> Hi,
>>
>> I also encountered the same errors.
>> USRPDevice.h:42: error: ‘usrp_standard_rx_sptr’ does not name a typ
Hi,
I also encountered the same errors.
USRPDevice.h:42: error: ‘usrp_standard_rx_sptr’ does not name a type
USRPDevice.h:43: error: ‘usrp_standard_tx_sptr’ does not name a type
Where can I get the "attached patch"???
Thank you,
Jane
Martin Dvh wrote:
> T. W. wrote:
>> Windows XP machine.
>>
7 7653 9006 ...+(.vS..
.
.
.
Thank you,
Jane
From: Doug Geiger
To: Jane Chen
Cc: discuss-gnuradio@gnu.org
Sent: Sunday, February 22, 2009 8:30:13 AM
Subject: Re: [Discuss-gnuradio] bbn_80211b_tap.py with tcpdump or wireshark
Are you getting any erro
Hi all,
I ran the bbn_80211b_tap.py. I used both tcpdump and wireshark to try to
capture the packets. However, it doesn't work.
My steps:
1. ./bbn_80211b_tap.py.
2.ifconfig gr0 192.168.111.2
3. tcpdump -i gr0 -e -X
I have no idea what's wrong.
Could anyone please help me to capture the 8
id not stop the ./bbn_80211b_tap.py correctly at the first
time. What should I do to avoid this kind of error?
Thank you,
Jane
From: Doug Geiger
To: Jane Chen
Cc: discuss-gnuradio@gnu.org
Sent: Saturday, February 21, 2009 8:52:34 AM
Subject: Re: [Discuss-gnuradio
Hi all,
I ran bbn_80211b_rx.py and got the information as follows:
PKT: len=163, rssi=-18, src=00:15:aa:55:6C:82, time=13720, rate=1 Mbps
PKT: len=163, rssi=-23, src=00:15:aa:55:6C:D2, time=21272, rate=1 Mbps
..
According to the information of packets, I don't think I can know if these
p
Thank you for your reply. The problem is solved. Thank you! I read the INSTALL
file and it did not mention ./bootstrap step.
From: Eric Blossom
To: Jane Chen
Cc: discuss-gnuradio@gnu.org
Sent: Thursday, February 19, 2009 5:28:25 PM
Subject: Re: [Discuss
Hi all,
I got the code through cvs -d anon...@acert.ir.bbn.com:/cvs/adroitgrdevel co
adroitgrdevel ,but there is no ./configure in gr-bbn.
I ran autoconf, but got errors as follows:
# autoconf
configure.ac:25: error: possibly undefined macro: AM_CONFIG_HEADER
If this token and others are
Hi all,
I searched on the [Discuss-gnuradio] and got some information that BBN
802.11 can only be used with
the earlier version of gnuradio..
About one and a half years ago (2007), I ran the BBN 802.11 with GNURadio 3.03
in Fedora 7. It worked well.
I have not used the USRP for a long time.
Hi all,
I would like use a USRP as a GSM base station. Is it possible to make it Tx and
Rx at the same time? How?
http://wireless.cs.uh..edu/presentation/2008/oct24_survey_spectrum_management_cogn_radio.pdf
In "A Survey on Spectrum Management in Cognitive Radio Networks" (the
link), (page 44) it
e the decimation factor lower
to see what the differences are between them.
Thank you,
Jane
From: Johnathan Corgan
To: Jane Chen
Cc: discuss-gnuradio@gnu.org
Sent: Wednesday, February 4, 2009 6:45:26 PM
Subject: Re: [Discuss-gnuradio] decimation rate of GSM
200
Hi all,
I have a question about the decimation rate of GSM (channel is 200kHz wide).
I search the decimation rate of GSM for GNURadio on the Google. I got some
information from
http://www.segfault.net/gsm/The_Beginners_Guide_to_analyzing_GSM_data_in_MatLab.pdf
However, I don't understand why
Hi all,
Does anyone have codes to decode GPRS and WiMax? I know BBN has 802.11b code. I
would like to know if anyone has GPRS and WiMax codes. I have used Google to
search for a while but cannot find codes to decode GPRS and WiMax. Can anyone
give me some hints?
Thank you,
Jane
__
Hi all,
I use the usrp_spectrum_sense.py in the gnuradio-example to do the spectrum
sensing. The gain is 45dB. I got the mag_squared of the fft output (m.data). I
think that I can treat it as power. I would like to draw the spectrogram. Does
any one know the unit of the m.data in the usrp_spectr
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