Re: [Discuss-gnuradio] Hardware for MIMO & Beamforming Experiment

[eva some]

Thank you Kyeong,

I am working on a publication paper (personal work) which involves MIMO stuff. I think I will go with LimeSDR which seems cheaper.

For a 2x2, can we still use Ettus MIMO Cable? If not, how the configuration plays out? Any links for reading will be much appreciated.

Thank you,

Eva

On Thu, Jun 13, 2019 at 9:11 PM Kyeong Su Shin <address@hidden> wrote:

Hello Evariste:

If 2 channels are sufficient, you can probably get away with USRP B210s (which is expensive but superior) or LimeSDRs. You can also use a MIMO cable to pair up two USRP N210s together.

If you need more channels, things get a bit expensive. You will need to consider USRP N3xx series or hook up multiple SDR transceivers together. The cheapest way that I can think of is implementing your own master clock generator and clock divider (A bit riskier than using Ettus's Octoclock, though).

I would use LimeSDRs or XTRXs for 2x2 MIMO setup if it is a personal project. I would ask for more budgets (and take Ali Dormiani's approach) if it is a serious research funded by an organization.

(* Please note that devices like USRP B210 have one shared LO for multiple channels. That means you cannot physically tune to different frequencies simultaneously, but you get phase coherence between the channels. The MIMO Cable + USRP N210 configuration is the other way around.)

Regards,

Kyeong Su Shin

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보낸 사람: eva some <address@hidden> 대신 Discuss-gnuradio <discuss-gnuradio-bounces+ksshin=address@hidden>
보낸 날짜: 2019년 6월 14일 금요일 오전 3:30:34
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제목: [Discuss-gnuradio] Hardware for MIMO & Beamforming Experiment

 

Hi dear community members!

I want to run experiments using MIMO and/or beamforming techniques with open source. However, I am getting stuck with hardware. Traditionally, I used USRPs N210 for experiments. I have only two.

Is there any cheap hardware that can support MIMO & beamforming applications on the market?

Thanks.

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Evariste Some

 EE

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Evariste Some

Temple College of Engineering, 

Master EE