[Discuss-gnuradio] Re: Discuss-gnuradio Digest, Vol 64, Issue 61

[CHIN-YA HUANG]

Tom,

For the message 3, you mention that QAM 16 works well, but QAM64 does not. 
Is it still be the problem of receiver or anything else like the old message
about synchronization, interference, or frequency offset related issue ? 

Chin-Ya

>  
>  ------------------------------
>  
>  Message: 3
>  Date: Wed, 26 Mar 2008 09:32:02 -0500
>  From: Tom Rondeau <address@hidden>
>  Subject: Re: [Discuss-gnuradio] OFDM insufficient ports
>  To: Sarang Mandke <address@hidden>
>  Cc: address@hidden
>  Message-ID: <address@hidden>
>  Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>  
>  Sarang Mandke wrote:
>  > I used Tom Rondeau's changeset 7848 and applied it to my current 
>  > updated code.
>  > Currently I am getting a runtime error from ofdm sampler saying 
> that 
>  > there are "insufficient output ports".
>  >
>  > Has anyone faced a similar issue? Esp. for OFDM over air, this is a 
> 
>  > major prob.
>  
>  [changed name of subject fromexecute MATLAB code with mlab_call]
>  
>  That revision is still in the "work in progress" mode. Once I've 
> gotten 
>  a few minutes away from some traveling, I'll be making a few final 
>  checkin's and merging my current branch into the trunk. This should 
>  solve most issues with the OFDM system. I'm getting good performance 
> 
>  with BPSK, QPSK, and QAM16. QAM64 works but with fairly high error 
> rate 
>  over the air (but nothing channel coding can't correct for).
>  
>  Tom
>  
>  
>  
>  
>  
>  ------------------------------
>  
>  Message: 4
>  Date: Wed, 26 Mar 2008 08:07:38 -0700 (PDT)
>  From: mohamed adm <address@hidden>
>  Subject: [Discuss-gnuradio] Best GR-friendly  Linux distro ... Ubuntu
>       won !
>  To: address@hidden
>  Message-ID: <address@hidden>
>  Content-Type: text/plain; charset=iso-8859-1
>  
>  Ubuntu 7.10 Gusty seems to be more GR-friendly than
>  others, I tried it well and everything works fine, but
>  can't find USB info from "lsusb" or "/proc/bus/usb"!
>  any ideas?
>  
>  To install just follow wiki guides at:
>  http://gnuradio.org/trac/wiki/UbuntuInstall
>  
>  For lazy ones, with source just prepare the following:
>  #apt-get -y install g++ automake libtool python-dev
>  fftw3-dev libcppunit-dev libboost-dev sdcc libusb-dev
>  libasound2-dev libsdl1.2-dev python-wxgtk2.8
>  subversion guile-1.8 libqt3-mt-dev python-numpy-ext
>  swig
>  
>  Then:
>  #./configure
>  #make
>  #make install
>  
>  Alternatively, there are binary and source packages in
>  the Debian repository format at:
>  http://gnuradio.org/trac/wiki/DebianPackages
>  
>  Add this repoz:
>  deb http://gnuradio.org/ubuntu stable main contrib
>  deb-src http://gnuradio.org/ubuntu stable main
>  
>  Then:
>  #apt-get install gnuradio usrp
>  
>  
>  
>        
> ____________________________________________________________________________________
>  Never miss a thing.  Make Yahoo your home page. 
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>  
>  
>  
>  
>  ------------------------------
>  
>  Message: 5
>  Date: Wed, 26 Mar 2008 11:14:43 -0400
>  From: Michael Dickens <address@hidden>
>  Subject: Re: [Discuss-gnuradio] GNU Radio on VMWare
>  To: "Mr. mollasadra" <address@hidden>
>  Cc: address@hidden
>  Message-ID: <address@hidden>
>  Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
>  
>  On Mar 26, 2008, at 10:04 AM, Mr. mollasadra wrote:
>  > The only remaining question is: how many of those modules that ./ 
>  > configure said it was skipping am I suppose to get
>  > because they are  unnecessary  (depending on my operating system  
>  > requirements, sound card, etc) and how many were skipped
>  > because of the lack of some dependencies?
>  
>  Do you have a USRP attached to your computer that you're trying to use?
>  
>  I found, from the default install of FC8, that following the  
>  FedoraInstall instructions got all of the modules to compile that  
>  could be compiled (e.g. gr-audio-osx and -windows won't compile, 
> since  
>  they're not for Linux; -jack won't build if you don't have the jack  
> 
>  library; likewise for -comedi component).
>  
>  Most of the rest of the components require USRP to build ... I found  
> 
>  that all I needed to get USRP to compile was executing (as in the  
>  FedoraInstall page):
>  
>    export PATH=/usr/libexec/sdcc:$PATH
>  
>  before running ./configure , in order to provide the needed into to  
> 
>  configure to find 'sdcc' and its cohorts.  YMMV - MLD
>  
>  
>  
>  
>  ------------------------------
>  
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>  End of Discuss-gnuradio Digest, Vol 64, Issue 61
>  ************************************************
>