== Using mmWave equipment on COSMOS SandBox1 (In Progress) ==

=== Description ===
A pair of Sivers EVK06002s, evaluation kits for Sivers IMA TRX BF/01, are deployed on COSMOS SandBox1. TRX BF/01 is a 16+16 IEEE802.11ad Beamforming Transceiver with a complete Radio front-end with 57-66 GHz mmWave frequency range.

Current mmWave setup in COSMOS SB1 looks as shown in the figure below.

|| [[Image(mmWaveSB1_withSW.jpg)]] ||

Baseband data samples to Sivers front-ends are fed by USRP X310s with BasicTX and BasicRX daughtercards. BasicTX (https://www.ettus.com/all-products/basictx/) daughtercard is a simple wideband (250MHz) interface to the raw DAC signals from USRP. Similarly BasicRX (https://www.ettus.com/all-products/basicrx/) provides a simple, wideband interface to USRP ADCs. The raw data can be generated/processed in the FPGA on USRP X310 and can be transferred to the host servers srv1-lg1, srv2-lg1 over 10G Ethernet link for further processing/storage.
Control software for Sivers front-ends runs on srv3-lg1 and srv4-lg1. srv3-lg1 is directly connected to Sivers SN0240 and srv4-lg1 is connected to Sivers SN0243. These servers also have a direct USB connection to the X310s, for JTAG programming.

This tutorial demonstrates how  to transmit and receive a signal in the 60GHz mmWave spectrum using these Sivers front-ends.
 
=== Prerequisites ===
In order to access the test bed, create a reservation and have it approved by the reservation service. Access to the resources is granted after the reservation is confirmed. Please follow the process shown on [wiki:cosmos_workflow the COSMOS work flow page] to get started. 

=== Resources required ===
4 servers srv1-lg1 to srv4-lg1, 2 USRP X310s, sdr2-md2, sdr2-md3 and both the Sivers platforms on COSMOS SB1.

=== Execution ===

==== Prepare the host nodes ====

 As shown in the figure above, Sivers control software runs on srv3,srv4, whereas the UHD/gnuradio application to generate/process data samples runs on srv1,srv2. So, appropriate images have to loaded on these servers.
 The image sivers_sb1_cosmos.ndz, has UHD and Sivers control software installed. 
* Load sivers_sb1_cosmos.ndz on srv3,srv4 
  {{{
  prasanthi@console:~$ omf load -i sivers_sb1_cosmos.ndz -t srv3-lg1,srv4-lg1
  }}}
* If using an example application from UHD, sivers_sb1_cosmos.ndz can be used on srv1 and srv2 as well. If using a custom UHD application or Gnuradio application, please load baseline_sdr_1804.ndz.
  {{{
  prasanthi@console:~$ omf load -i sivers_sb1_cosmos.ndz -t srv1-lg1,srv2-lg1
  }}} 

  {{{
  prasanthi@console:~$ omf load -i baseline_sdr_1804.ndz -t srv3-lg1,srv4-lg1
  }}}
* Turn the nodes on
  {{{
  prasanthi@console:~$ omf tell -a on -t rv1-lg1,srv2-lg1,srv3-lg1,srv4-lg1
  }}}

* Check the status
  {{{
  prasanthi@console:~$ omf stat -t all
  }}}
  {{{
  -----------------------------------------------
 Node: mob2-1.sb1.cosmos-lab.org         State: POWERON
 Node: mob3-1.sb1.cosmos-lab.org         State: POWERON
 Node: sdr2-lg1.sb1.cosmos-lab.org       State: POWERON
 Node: sdr2-md1.sb1.cosmos-lab.org       State: POWERON
 Node: sdr2-md2.sb1.cosmos-lab.org       State: POWERON
 Node: sdr2-md3.sb1.cosmos-lab.org       State: POWERON
 Node: srv1-lg1.sb1.cosmos-lab.org       State: POWERON
 Node: srv2-lg1.sb1.cosmos-lab.org       State: POWERON
 Node: srv3-lg1.sb1.cosmos-lab.org       State: POWERON
 Node: srv4-lg1.sb1.cosmos-lab.org       State: POWERON
-----------------------------------------------
  
  }}}

* ssh to the nodes, use option -Y if using GUI.

* Configure 10G data interface  

==== Prepare Sivers front-ends ====

==== Run the experiment ====
* Start transmit application on the TX node. 
{{{

}}}
  
* Start receive application on the RX node. 
{{{
  
}}}
  
  || [[Image(channel_sounding_display_orange.jpg]] ||