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| Standards > Data Transmission Standards > |
Modulation Techniques
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ALSO CALLED: Digital Modulation Techniques
DEFINITION: Modulation is the addition of information (or the signal) to an electronic or optical signal carrier. Modulation can be applied to direct current (mainly by turning it on and off), to alternating current, and to optical signals. One can think of blanket waving as a form of
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| Your request for Modulation Techniques white papers returned limited or no results. The request has been expanded to include TDMA, CDMA and OFDM white papers.
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Licensed versus Unlicensed Wireless
| sponsored by Motorola, Inc.
WHITE PAPER:
Wireless communications can utilize either licensed or unlicensed-band equipment, but performance assumptions can lead organizations in the wrong direction. Read this paper to learn which is really best.
Posted: 08 Jun 2007 | Published: 16 Apr 2007
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MODULATION TECHNIQUES DEFINITION (continued): … modulation used in smoke signal transmission (the carrier being a steady stream of smoke). Morse code, invented for telegraphy and still used in amateur radio, uses a binary (two-state) digital code similar to the code used bymodern computers. For most of radio and telecommunication today, the carrier is alternating current ( AC) in a given range of frequencies. Common modulation methods include: |
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