1 of 6

Security Programmable Metamaterial Antenna for Physical Layer Security

Week 3

By: Prachi Patel & Dylan Turner

2 of 6

Introductions:

Dylan Turner

Prachi Patel

3 of 6

Overall Goal Recap:

  • Achieve Directional Modulation with Metamaterial Antenna Array.

​

  • Working on implementing Symbol Precoding as a solution to the antenna’s frequency dependence.

​

  • We believe it can be achieved through a modification to the OFDM_TX block in GNU Radio.

​

​

4 of 6

Weekly Progress

  • Investigated the OFDM_TX flowgraph on a low level.
    • Viewed outputs for each block as Hex or Binary data.
    • Traced through the entire pipeline to ensure perfect understanding.
  • Studied related topics as we came across them in flowgraph, such as Cyclic Redundancy Check (CRC) which is essentially a tool used for error correction.

5 of 6

Weekly Progress - Example

CRC -> Repack Bits Flowgraph Representation

CRC -> Repack Bits Outputs

6 of 6

Goals for Next Week

  • We will investigate further into the flowgraph, starting with the OFDM carrier allocator block.

​

  • Explore potential solutions for integrating symbol precoding.

​