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Orthogonal frequency-division multiplexing: Characters, History, Applications & Measurement

In telecommunications, orthogonal frequency-division multiplexing (OFDM) is a type of digital transmission used in digital modulation for encoding digital (binary) data on multiple carrier frequencies. OFDM has developed into a popular scheme for wideband digital communication, used in applications such as digital television and audio broadcasting, DSL…

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Orthogonal frequency-division multiplexing topic overview

The analysis highlights Characters, History, Applications and Measurement as prominent areas in the source structure around Orthogonal frequency-division multiplexing. 1 topic appears in more than one source area, which can help identify connections that are less obvious in a linear reading.

Related topics
232
Source areas
10
Connected nodes
243
Extracted relationships
38
Related term clusters
53
Bridge connections
243

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Characteristics and principles of operation · 67 topics
Overview · 62 topics
Example of applications · 43 topics
Usage · 35 topics
Idealized system model · 11 topics
Key features · 6 topics
Efficiency comparison between single carrier and multicarrier · 3 topics
Mathematical description · 3 topics
Other orthogonal transforms · 2 topics
History · 1 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

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Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Example of applications

Key features

Characteristics and principles of operation

Efficiency comparison between single carrier and multicarrier

Idealized system model

Mathematical description

Usage

Other orthogonal transforms

History

For the semantics nerds

You can skip this section if you’re here for content ideas and keyword inspiration.

Advanced semantic analysis

How Orthogonal frequency-division multiplexing connects Entity context

The extracted context around Orthogonal frequency-division multiplexing shows recurring relationship patterns in the source. For example, Orthogonal frequency-division multiplexing → April, C-Net C450, CDMA2000, Datame, Digita, Europe, F-OFDM, Fast, Flarion, Flash-OFDM, GSM, In February, In Finland, January, MHz, NMT-450, OFDM, Qualcomm. Use these groups to spot repeated connection types before inspecting the individual relationships.

Orthogonal frequency-division multiplexing

Top relations

related to Flash-OFDM · 18
Orthogonal frequency-division multiplexing → April, C-Net C450, CDMA2000, Datame, Digita, Europe, F-OFDM, Fast, Flarion, Flash-OFDM, GSM, In February, In Finland, January, MHz, NMT-450, OFDM, Qualcomm

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

ofdm used channel displaystyle signal modulation frequency orthogonal digital receiver interference using carrier cofdm symbol may wireless also multipath power

Orthogonal frequency-division multiplexing relationships Subject–Predicate–Object triples

TTTA extracted 38 structured relationships around Orthogonal frequency-division multiplexing. Examples in this analysis include digital television → instance of → used in applications and Ultrawideband → instance of → The reason that the guard interval consists of a copy of the end of the OFDM symbol is so that the receiver will integrate over an integer number of sinusoid cycles for each of…. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
digital televisioninstance ofused in applications0.80text
audio broadcastinginstance ofused in applications0.80text
DSL internet accessinstance ofused in applications0.80text
wireless networksinstance ofused in applications0.80text
power line networksinstance ofused in applications0.80text
and 4G/5G mobile communications.OFDM is a frequency-division multiplexinginstance ofused in applications0.80text
Ultrawidebandinstance ofThe reason that the guard interval consists of a copy of the end of the OFDM symbol is so that the receiver will integrate over an integer number of sinusoid cycles for each of…0.80text
in the interest of transmitted powerinstance ofThe reason that the guard interval consists of a copy of the end of the OFDM symbol is so that the receiver will integrate over an integer number of sinusoid cycles for each of…0.80text
cyclic prefix is skippedinstance ofThe reason that the guard interval consists of a copy of the end of the OFDM symbol is so that the receiver will integrate over an integer number of sinusoid cycles for each of…0.80text
nothing is sent during the guard intervalinstance ofThe reason that the guard interval consists of a copy of the end of the OFDM symbol is so that the receiver will integrate over an integer number of sinusoid cycles for each of…0.80text
DPSK or DQPSK is applied to each subcarrierinstance ofat the cost of delay between reception and decoding which also becomes comparable with OFDM.If differential modulation0.80text
equalization can be completely omittedinstance ofat the cost of delay between reception and decoding which also becomes comparable with OFDM.If differential modulation0.80text

Related concept clusters Related term clusters

The concept neighborhoods around Orthogonal frequency-division multiplexing bring nearby vocabulary together. In this analysis, examples include Carrier, Multiple and Subcarrier. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Orthogonal frequency-division multiplexing
    • Carrier
    • Multiple
    • Subcarrier
    • Using
    • Access
    • Time
    • System
    • Frequency
    • Cofdm
    • Subcarriers
    • Interference
    • Receiver
  • orthogonal frequency-division multiplexing
    • Carrier
    • Multiple
    • Subcarrier
    • Using
    • Access
    • Time
    • System
    • Frequency
    • Cofdm
    • Subcarriers
    • Interference
    • Receiver
  • digital transmission
    • Television
    • Cofdm
    • Used
    • Access
    • Standard
    • Power
    • Wireless
    • Ofdm
    • Mobile
    • Networks
    • System
    • Systems
  • carrier
    • Orthogonal
    • Multiple
    • Frequency
    • Using
    • Mobile
    • System
    • Wireless
    • Signal
    • Displaystyle
    • Digital
    • Used
    • Access
  • digital communication
    • Television
    • Cofdm
    • Mobile
    • Power
    • Used
    • Access
    • Networks
    • System
    • Standard
    • Systems
    • Wireless
    • Ofdm
  • internet access
    • Multiple
    • Also
    • Wireless
    • Communication
    • Mobile
    • Networks
    • Standard
    • Digital
    • Orthogonal
    • Ofdm
    • Coding
    • Power
  • wireless networks
    • Networks
    • Standard
    • Wireless
    • Power
    • Also
    • Access
    • Mobile
    • Used
    • Television
    • Digital
    • Ofdm
    • Multiple
  • power line networks
    • Wireless
    • Power
    • Also
    • Used
    • Interference
    • Receiver
    • Mobile
    • Television
    • Interval
    • Standard
    • Frequency
    • System

Connections between topic areas Semantic bridges

For Orthogonal frequency-division multiplexing, one of the stronger structural bridges in this analysis connects Orthogonal frequency-division multiplexing with Characteristics and principles of operation. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Orthogonal frequency-division multiplexing — Characteristics and principles of operation · splits 176 ⟂ 68
Orthogonal frequency-division multiplexing — Overview · splits 181 ⟂ 63
Orthogonal frequency-division multiplexing — Example of applications · splits 200 ⟂ 44
Orthogonal frequency-division multiplexing — Usage · splits 208 ⟂ 36
Orthogonal frequency-division multiplexing — Idealized system model · splits 232 ⟂ 12
Orthogonal frequency-division multiplexing — Key features · splits 237 ⟂ 7
Orthogonal frequency-division multiplexing — Efficiency comparison between single carrier and multicarrier · splits 240 ⟂ 4
Orthogonal frequency-division multiplexing — Mathematical description · splits 240 ⟂ 4
Orthogonal frequency-division multiplexing — Other orthogonal transforms · splits 241 ⟂ 3

Map overview Semantic statistics

Orthogonal frequency-division multiplexing

Nodes244
Edges243
Triples38
Avg. degree1.99
Density0.008197
Components1

Source & methodology

TTTA analyzes the structure around Orthogonal frequency-division multiplexing to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Characters, History, Applications & Measurement, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Orthogonal frequency-division multiplexing · EN edition · Analysis: TopicsToTalkAbout

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