Principles of OFDM

System Block Diagram
In this experiment, students are introduced to the basic principles of Orthogonal Frequency Division Multiplexing and will implement the IDFT function using a noncoherent demodulation for every subcarrier.
by Emona Tims
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This is lab 13 of 20 in the course, Communications Principles.

LEARNING OBJECTIVES


After completing this lab, students will be able to:
  1. Build an OFDM signal with 3 subcarriers
  2. Recover the data using an Integrate & Dump process
  3. Understand the meaning of orthogonality of subcarriers
  4. Recognise the data carrying capacity of multiple channels
  5. Describe the limitations due to PAPR
 

REQUIRED SKILLS

 
  • Basic proficiency using ELVIS III Instruments
  • Basic Circuits & Signals & Systems Knowledge
  • Introductory Communications Knowledge

NI ELVIS III

Engineering laboratory solution for project-based learning that combines instrumentation and embedded design with a web-driven experience, delivering a greater understanding of engineering fundamentals and system design.

Emona Communications Board for NI ELVIS III

Application board for the NI ELVIS III developed to teach introductory digital and analog communications topics using a completely hands-on approach.

LabVIEW

LabVIEW is systems engineering software for applications that require test, measurement, and control with rapid access to hardware and data insights.

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