Lesson plan
Interference (communication)
In telecommunications, an interference is that which modifies a signal in a disruptive manner, as it travels along a communication channel between its source and receiver. The term is often used to refer to the addition of unwanted signals to a useful signal. Common examples include: * Electromagnetic interference (EMI) * Co-channel interference (CCI), also known as crosstalk * Adjacent-channel interference (ACI) * Intersymbol interference (ISI) * Inter-carrier interference (ICI), caused by doppler shift in OFDM modulation (multitone modulation). * Common-mode interference (CMI) * Conducted interference Noise is a form of interference but not all interference is noise. Noise can also have multiple causes, such as temperature and material makeup of nearby objects and electronics. Dithering is a form of noise that can be used on purpose. In CDMA channels, interference can specifically be linked to simultaneous accessing of a single, identical channel by multiple individuals. Radio resource management aims at reducing and controlling the co-channel and adjacent-channel interference.
Article summary
In telecommunications, an interference is that which modifies a signal in a disruptive manner, as it travels along a communication channel between its source and receiver. The term is often used to refer to the addition of unwanted signals to a useful signal. Common examples include: * Electromagnetic interference (EMI) * Co-channel interference (CCI), also known as crosstalk * Adjacent-channel interference (ACI) * Intersymbol interference (ISI) * Inter-carrier interference (ICI), caused by doppler shift in OFDM modulation (multitone modulation). * Common-mode interference (CMI) * Conducted interference Noise is a form of interference but not all interference is noise. Noise can also have multiple causes, such as temperature and material makeup of nearby objects and electronics. Dithering is a form of noise that can be used on purpose. In CDMA channels, interference can specifically be linked to simultaneous accessing of a single, identical channel by multiple individuals. Radio resource management aims at reducing and controlling the co-channel and adjacent-channel interference.
Key claims
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.