skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Explore Research Products in the PAR
It may take a few hours for recently added research products to appear in PAR search results.


  • Home
  • Search Results
  • Page 1 of 1

Search for: All records

Award ID contains: 2232464

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. ; (, Github)
    na (Ed.)
    This tutorial allows students to learn about physical layer over-the-air radio channel measurements. The tutorial allows them to transmit and receive continouous-wave (CW) signals on the POWDER wireless testbed. The learning objectives are: to be able to use the Shout measurement framework to automate TX/RX functions across multiple POWDER nodes; work with complex-valued signals in the time domain and frequency domain; compute the received power from a received complex-valued signal; and know how received power decreases as a function of path length. The tutorial involves code to be run on POWDER as well as a python notebook to process the received signals. 
    more » « less
    Accepted Manuscript Full Text Available
  2. ; (, https://github.com/npatwari/OFDM_RX_Tutorial)
    This tutorial allows students to build a software-defined receiver to demodulate an OFDM packet. The signals we use in the tutorial were transmitted and received over the air on the POWDER wireless testbed. Students have the receiver do synchronization, dropping of the cyclic prefix, performing the FFT, doing channel estimation using the pilot data, and then coding a symbol decision block. The bits generated from this are used to generate a string, which lets the student know that they have successfully completed the receiver design. 
    more » « less
    Accepted Manuscript Full Text Available
  3. ; ; ; ; (, https://github.com/npatwari/QPSK-RX-Tutorial)
    This tutorial allows students to build a software-defined receiver for a narrowband QPSK receiver. The receiver starts with a QPSK signal recorded over-the-air on the POWDER wireless network. Then it walks the student through synchronization in time, frequency, and phase. The student builds in convolution and downsampling. Then the student codes the symbol detector and appends bits to the output. At the end, they convert the bit vector to a string message that shows them that they successfully built the receiver. 
    more » « less
    Accepted Manuscript Full Text Available
  4. (, Washington University in St. Louis)
    Full Text Available 
  5. ; ; (, Computer Networks)
    Full Text Available 
  6. ; ; ; (, 2024 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM))
    Full Text Available