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What is OFDMA and how can we compare it with TDMA and FDMA?

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What is OFDMA and how can we compare it with TDMA and FDMA?
posted Nov 17, 2014 by anonymous

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1 Answer

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OFDM : Orthogonal Frequency Division Multiplexing
It is a modulation method that divides a channel into multiple narrow orthogonal bands that are spaced so they don’t interfere with one another. Each band is divided into hundreds or even thousands of 15-kHz wide subcarriers.

FDMA: Frequency Division Multiple Access
Here a channel/band is divided into multiple sub bands & each is used by single user.

TDMA : Time Division Multiple Access
Here a single band/channel multiple time slots.

answer Sep 20, 2016 by Shivananda Gavalkar S
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