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Re: [Discuss-gnuradio] Looking for 802.11 MAC & PHY Package
From: |
Vanush Vaswani |
Subject: |
Re: [Discuss-gnuradio] Looking for 802.11 MAC & PHY Package |
Date: |
Thu, 16 Oct 2014 20:50:34 +1100 |
Is it possible to do 11ac on SDR?
On Wed, Oct 15, 2014 at 10:07 PM, Bastian Bloessl <address@hidden> wrote:
> Hi,
>
> On 10/10/2014 06:20 PM, Zhang, Jiayi wrote:
>>
>> Dear Marcus and Bloessl,
>>
>> Thanks for the reply. I also notice the fully functional gr-ieee802-11
>> package provide by Bloessl. Previously I thought it's only PHY, but as
>> Marcus mentioned it also include MAC. It seems to me in the
>> gr-ieee802-11-master package, the MAC does not run csma. I also find the
>> gr-ieee802-11-csma package, which is smaller than the master package but
>> indicate "csma" in name and one of examples.
>
>
> Sorry, I don't get what you mean with smaller. Are you talking about the
> file size of the sources?
> All branches add / parse the MAC header as defined in the standard. So the
> frame format is OK on all branches. The 'csma' branch implements channel
> access for broadcast frames.
>
>> After checking the Readme
>> and other pulications from WIME project, I cannot find detail
>> description regarding the MAC and CSMA function for the package.
>
>
> It's the one at the top
> http://www.ccs-labs.org/bib/bloessl2014timings/
>
>>
>> 1. Does the csma package should be used with the master package?
>
>
> No. 'csma' is the name of a branch. You would checkout and use that branch.
>
>> 2. Does the csma package support multiple nodes in an ad-hoc network?
>
>
> The CSMA implementation is for broadcast frames only. So depends on what you
> want to do.
>
>>
>> Return to Marcus's advice, do you mean that to realize the MAC (CSMA),
>> we still need implement FPGA (not the one in USRP?) to handle it in
>> hardware, no matter we use the software lib, e.g. GRU Radio or Click
>> Module Router?
>
>
> To support CSMA functionality you will have to change the FPGA otherwise you
> will not be able to meet the timing constraints of 802.11. For the broadcast
> case you only need some small changes.
> If you want to support ACKS and RTS/CTS you need a lot of functionality on
> the FPGA. In my opinion this will not happen on a N210, but AFAIK Ettus has
> a 802.11 implementation for RFNoC (i.e. for the FPGA) which most likely
> meets all timing constraints.
>
> Best,
> Bastian
>
>>
>> Many thanks for your help again!
>>
>> Best regards,
>> Jiayi
>>
>>
>> On Thu, Oct 9, 2014 at 4:05 PM, Marcus Müller <address@hidden
>> <mailto:address@hidden>> wrote:
>>
>> Hi Jiayi,
>>
>> :) gr-ieee802-11 is, as far as I know, the most comprehensive,
>> functional implementation so far. It *can* talk to consumer cards --
>> but
>> of course, that's not because it has a complete MAC implementation.
>> Actually, doing a really standards-compliant IEEE802.11agp MAC can't
>> really be done in host software alone -- the gigabit ethernet
>> interface
>> alone just has too much latency, and you'll have to be really fast
>> when
>> detecting ACK's, calculating checksums and sending out the reply. I
>> doubt you can implement a fully working IEEE802.11 MAC in software
>> alone
>> without touching the FPGA.
>>
>> Here's the official source code:
>> https://github.com/bastibl/gr-ieee802-11 has the source code, btw.
>>
>>
>> Greetings,
>> Marcus
>> On 09.10.2014 21:47, Zhang, Jiayi wrote:
>> > Dear Marcus and all,
>> >
>> > Many thanks for the advice regarding the Hydra and ORBIT project.
>> >
>> > Actually I'm looking for the open-source 802.11 PHY&MAC packages
>> which are
>> > compatible with Recent GNU Radio and USRP N210/X310.
>> >
>> > I've searched from internet and got some findings listed below:
>> > 1) Hydra PHY & MAC from University of Texas at Austin [1]
>> > 2) FTW IEEE802.11a/g/p OFDM Frame Encoder [2]
>> > 3) UWICORE m-HOP 802.11 MAC for USRP based on the FTW PHY [3]
>> > http://www.uwicore.umh.es/mhop-software.html
>> > *** All (1-3) only compatible with gnuradio-3.2.2 which was too
>> many years
>> > ago.
>> >
>> > 4) WIME IEEE 802.11a/g/p Transceiver for GNU Radio v3.7 [3]
>> > http://www.ccs-labs.org/software/gr-ieee802-11/
>> > *** This is a most recent package for gnuradio 3.7, but is PHY
>> only. Are
>> > there any MAC package which compatible with this WIME PHY?
>> >
>> > 5) ORBIT Project [5]
>> > *** This is a huge project which can be studied. Are there any
>> project
>> > provide both 802.11 MAC & PHY like Hydrd did before?
>> >
>> > Best regards,
>> > Jiayi
>> >
>> > [1] K. Mandke, Soon-Hyeok Choi, Gibeom Kim, R. Grant, R. Daniels,
>> Wonsoo
>> > Kim, R. W. Heath, Jr., and S. Nettles, “Early Results on Hydra: A
>> Flexible
>> > MAC/PHY Multihop Testbed,” Proc. of IEEE Vehicular Tech. Conf. ,
>> pp.
>> > 1896-1900, Dublin, Ireland, April 23 – 25, 2007.
>> > [2] http://www.cgran.org/wiki/ftw80211ofdmtx
>> > [3] J.R. Gutierrez-Agullo, B. Coll-Perales and J. Gozalvez, "An
>> IEEE 802.11
>> > MAC Software Defined Radio Implementation for Experimental Wireless
>> > Communications and Networking Research", Proceedings of the 2010
>> IFIP/IEEE
>> > Wireless Days (WD'10), 20-22 October 2010, Venice (Italy).
>> > [4] Bastian Bloessl, Michele Segata, Christoph Sommer and Falko
>> Dressler,
>> > "An IEEE 802.11a/g/p OFDM Receiver for GNU Radio," Proceedings of
>> ACM
>> > SIGCOMM 2013, 2nd ACM SIGCOMM Workshop of Software Radio
>> Implementation
>> > Forum (SRIF 2013), Hong Kong, China, August 2013, pp. 9-16.
>> > [5] http://www.orbit-lab.org/
>> >
>> >
>> > On Thu, Oct 9, 2014 at 1:02 PM, Marcus Müller
>> <address@hidden <mailto:address@hidden>>
>>
>> > wrote:
>> >
>> >> Yes. Nothing in GNU Radio or UHD (the USRP driver framework) is
>> >> distribution-specific, so transition from Ubuntu to Fedora
>> should not be
>> >> a problem
>> >>
>> >> Good luck with finding a "new version" of Hydra; I didn't find any
>> >> publication after 2009 on a quick first glance on google
>> scholar[1]. And
>> >> I couldn't find the source code anywhere. Honestly: If you don't
>> find
>> >> anything that proves otherwise, I'd presume that Hydra is kind
>> of dead
>> >> [2]. Please prove me wrong on this!
>> >>
>> >> There is the ORBIT lab that has come up with a rather
>> comprehensive
>> >> infrastructure for wireless testbeds, so you might want to look
>> at that[3].
>> >>
>> >> Greetings,
>> >> Marcus
>> >>
>> >> [1]
>> >>
>> >>
>>
>> http://scholar.google.de/scholar?q=%22Robert+W.+Heath%22+hydra&hl=en&as_sdt=0%2C5&as_ylo=2010&as_yhi=
>> >> [2] https://www.youtube.com/watch?v=r0yXqU-w9U0
>> >> [3] http://www.orbit-lab.org/
>> >> On 09.10.2014 16:41, Zhang, Jiayi wrote:
>> >>> Hi Marcus,
>> >>>
>> >>> Another question is that, if we development the software with
>> GNU Radio
>> >> and
>> >>> USRP in Ubuntu, is it easy to transfer to Fedora?
>> >> Thanks for your reply. I think the best way to us is to find the
>> new
>> >> version of Hydra package which is based on the recent GNU Radio
>> version
>> >> working with current USRP produces.
>> >>
>> >>> Many thanks!
>> >>>
>> >>> Regards,
>> >>> Jiayi
>> >>>
>> >>> On Wed, Oct 8, 2014 at 11:11 AM, Marcus Müller
>> <address@hidden <mailto:address@hidden>
>>
>> >>>
>> >>> wrote:
>> >>>
>> >>>> Hello Jiayi,
>> >>>>
>> >>>> 3.2.2 is *very* ancient. In fact, it's older than my
>> involvement with
>> >> GNU
>> >>>> Radio, and I think it will be very hard to find someone how's
>> still
>> >> using
>> >>>> it, so asking for experience, I'm afraid, is not going to
>> yield a lot of
>> >>>> responses in 2014.
>> >>>> Therefore, it will be nearly impossible to recreate an
>> environment with
>> >>>> all the GNU Radio dependencies that match the needs of GNU
>> Radio 3.2.2.
>> >>>>
>> >>>> I'm not familiar with Hydra itself; but if it uses GR 3.2.2
>> you won't be
>> >>>> able to use it with modern USRPs, you won't have much fun
>> developing new
>> >>>> applications for it, and in total it might be wise to look if
>> you can
>> >>>> either find a suitable substitute or port it to a modern GNU
>> Radio.
>> >>>>
>> >>>> However, I'm optimistic that someone else here has used Hydra,
>> and maybe
>> >>>> he has some more specific hints than I do.
>> >>>>
>> >>>> Greetings,
>> >>>> Marcus
>> >>>>
>> >>>>
>> >>>> On 08.10.2014 16:50, Zhang, Jiayi wrote:
>> >>>>
>> >>>> Dear all,
>> >>>>
>> >>>> I'm a beginner of GNURadio but I'm familiar with some basis of
>> Linux
>> >> when I
>> >>>> use C++ & IT++. Currently I'm trying to test the Hydra-0.4
>> package for
>> >>>> evaluation under the last ubuntu ver 14.04.1 32bit. During the
>> >> installation
>> >>>> of gnuradio-3.2.2, there is an error which I cannot find the
>> solution on
>> >>>> internet.
>> >>>>
>> >>>> gnuradio-3.2.2$ ./bootstrap && ./configure --prefix=$GR
>> >>>> …
>> >>>> checking for boost >= 1.35... yes
>> >>>> checking whether the boost::thread includes are available... yes
>> >>>> configure: error: Could not link against libboost_thread!
>> >>>>
>> >>>> ‘libboost-all-dev’ has already installed, including
>> >> ‘libboost-thread-dev’,
>> >>>> I tried both version 1.54 and 1.55 of libboost. I've also
>> searched the
>> >>>> error message in Google, even after I installed the
>> 'build-essential'
>> >>>> package, the error remains the same.
>> >>>>
>> >>>> I will be much appreciated if any of you have such an
>> experience and
>> >> would
>> >>>> feedback some solutions.
>> >>>>
>> >>>> Regards,
>> >>>> Jiayi (Vincent)
>
>
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