Distributed Spectrum Monitoring and Channel Sounding

WINLAB Summer Internship 2022

Group Members: Khyati Dinesh Patel, Mingkun Sun, Suhani Sengupta

Project Objective

The goal for this project is to create an.

Several objectives:

• Using nodes in COSMOS/ORBIT testbed to transmit refence signals
• Collect data from the transmission process with the portable SDRs
• Use both traditional and AI/ML analysis for channel characterization (including occupancy)

Reading material:

Planned to meet weekly at 12pm on Tuesday and 2pm on Thursday

Week 1 Activities

• Get familiar with ORBIT
• Research on software defined radio (SDR)

​https://docs.google.com/presentation/d/18y-KR-26cWC_B4IMgejSuFHgU7Zztm02BahSOzAQ2PY/edit?usp=sharing

Week 2 Activities

• Ran basic experiments on ORBIT testbed
• Studied more about SDRs and Channel Monitoring
• Learnt basics of Ubuntu

​https://docs.google.com/presentation/d/1tDdCJUifqPcJJajYK1ccHp0i87-eYpBleqFTrgJkD18/edit?usp=sharing

Week 3 Activities

• Researched about different Sandboxes in ORBIT
• Perform more experiments with SDRs
• Studied about different hardwares in ORBIT

Week 4 Activities

• In USRP capture the waveforms and plot it
• In sandbox, used 1 node as transmitter and other as receiver and observed the transmission process

Week 5 Activities

• Used 2 transmitter and 2 receiver to send data across each other and plot the wavefroms
• Conducted specturm sensing using USRP2

​https://docs.google.com/presentation/d/12CcwJCVAbB3vUg_9BMBOVxZOoqdefTIzyPtlPQfCr9k/edit#slide=id.g13ab0d2f38f_0_281

Week 6 Activities

• Tried resolving the FPGA and GNU errors
• Looked into different technical papers for ML approach used for spectrum sensing

​https://docs.google.com/presentation/d/10xLD871rF6XXtcBfv_XguKsUf9dgnpza/edit#slide=id.p1

Week 7 Activities

• Successfully conducted experiment using GNU radio and tried plotting the spectrum using GNU companion
• Conducted specturm sensing using USRP X310 and WISERD

​https://docs.google.com/presentation/d/1WlkUhwVz73NCovsCMCzIw6b4Fosd_VYB-8a2jqyUp-w/edit#slide=id.g13c41a826af_1_9

Week 8 Activities

• Successfully collected sample data from the spectrum sensing experiment using WISERD
• Still trying to resolve the errors faced using GNU companion
• Looked into few ML algorithms and try to finalize one by this weekend

Week 9 Activities

Week 10 Activities