Remember OFDM
Full name: Orthogonal Frequency-Division Multiplexing
Memory aid: Orthogonal Frequencies Divide the Message.
OFDM modulation and OFDMA multi-user resource allocation are related but distinct.
Study area: Wi-Fi & radio · Batch 6
Relevant study for: CompTIA A+ Core 1 220-1201 · CompTIA Network+ N10-009 · Cisco CCNA 200-301 · ISC2 CISSP 2024 outline
Practice with exam flashcards →Networking & Connectivity / Knowledge library
OFDM — Orthogonal Frequency-Division Multiplexing
Carries data using many orthogonal subcarriers.
Why learn OFDM — Orthogonal Frequency-Division Multiplexing?
Carries data using many orthogonal subcarriers.
Where it came from
OFDM modulation and OFDMA multi-user resource allocation are related but distinct.
- Memory aid (a learning cue, not the expansion): Orthogonal Frequencies Divide the Message.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand OFDM: Orthogonal Frequency-Division Multiplexing.
- Recall this memory aid: Orthogonal Frequencies Divide the Message.
- Explain the practical use: Carries data using many orthogonal subcarriers.
- Explain this distinction: OFDM modulation and OFDMA multi-user resource allocation are related but distinct.
- Identify OFDM in a device specification, architecture diagram, or system inventory.
Documentation and sources
- Wi-Fi Alliance technology (www.wi-fi.org)
- IEEE wireless LAN working group (www.ieee802.org)