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  2. Single-carrier FDMA - Wikipedia

    en.wikipedia.org/wiki/Single-carrier_FDMA

    Single-carrier FDMA (SC-FDMA) is a frequency-division multiple access scheme. Originally known as Carrier Interferometry , it is also called linearly precoded OFDMA ( LP-OFDMA ). Like other multiple access schemes (TDMA, FDMA, CDMA, OFDMA), it deals with the assignment of multiple users to a shared communication resource.

  3. Channel access method - Wikipedia

    en.wikipedia.org/wiki/Channel_access_method

    The assignment of sub-carriers to users may be changed dynamically, based on the current radio channel conditions and traffic load. Single-carrier FDMA (SC-FDMA), a.k.a. linearly-precoded OFDMA (LP-OFDMA), is based on single-carrier frequency-domain-equalization (SC-FDE).

  4. Frequency-division multiple access - Wikipedia

    en.wikipedia.org/wiki/Frequency-division...

    Frequency-division multiple access (FDMA) is a channel access method used in some multiple-access protocols. FDMA allows multiple users to send data through a single communication channel, such as a coaxial cable or microwave beam, by dividing the bandwidth of the channel into separate non-overlapping frequency sub-channels and allocating each sub-channel to a separate user.

  5. Single channel per carrier - Wikipedia

    en.wikipedia.org/wiki/Single_channel_per_carrier

    Single channel per carrier (SCPC) refers to using a single signal at a given frequency and bandwidth. Most often, this is used on broadcast satellites to indicate that radio stations are not multiplexed as subcarriers onto a single video carrier , but instead independently share a transponder .

  6. Orthogonal frequency-division multiple access - Wikipedia

    en.wikipedia.org/wiki/Orthogonal_frequency...

    Averaging interferences from neighboring cells, using different basic carrier permutations between users in different cells; Interferences within the cell are averaged by using allocation with cyclic permutations; Enables single-frequency network coverage, where coverage problem exists and gives excellent coverage.

  7. Single-frequency network - Wikipedia

    en.wikipedia.org/wiki/Single-frequency_network

    Alternatives to using OFDM modulation in SFN self-interference cancellation would be: CDMA rake receivers.; MIMO channels (i.e. phased array antenna); Single-carrier frequency-domain-equalization (SC-FDE), i.e. single-carrier modulation combined with guard intervals and FFT-based frequency domain equalization, or its multi-user version Single-carrier FDMA (SC-FDMA).

  8. IMT-2000 - Wikipedia

    en.wikipedia.org/wiki/IMT-2000

    IMT-2000 TDMA Single Carrier. also known as EDGE, an intermediate 2.5G technology; IMT-2000 FDMA/TDMA. also known as DECT; To meet the IMT-2000 standards, a system ...

  9. E-UTRA - Wikipedia

    en.wikipedia.org/wiki/E-UTRA

    In the uplink LTE uses both OFDMA and a precoded version of OFDM called Single-Carrier Frequency-Division Multiple Access (SC-FDMA) depending on the channel. This is to compensate for a drawback with normal OFDM, which has a very high peak-to-average power ratio (PAPR). High PAPR requires more expensive and inefficient power amplifiers with ...

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