Used

Can an OFDM waveform be spread (DSSS)?

Can an OFDM waveform be spread (DSSS)?
  1. What is DSSS and OFDM?
  2. Is OFDM spread spectrum?
  3. What type of network is used in DSSS?
  4. How can spreading be achieved in DSSS?

What is DSSS and OFDM?

DSSS is used to provide support for 1 Mbps and 2 Mbps data rate. CCK for 5.5 and 11 Mbps while OFDM is used for higher data rate applications. OFDM is used in IEEE 802.11a, 11g, 11n, 11ac and 11ad versions. OFDM is employed along with MIMO to increase the data rate further.

Is OFDM spread spectrum?

OFDM can also be used as a spread spectrum modulation (OFDM-SS) [3, 4, 5] wherein spectral spreading is accomplished by putting the same data on all the carriers, producing a spreading factor equal to the number of carriers.

What type of network is used in DSSS?

Home Networks

DSSS is a form of CDMA (see Chapter 4). But instead of a pseudorandom binary sequence (PRBS), an 11-bit Barker code is used as the spreading sequence.

How can spreading be achieved in DSSS?

The spreading code can be transmitted in multiple ways like Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), or more complex modulation schemes like Quadrature Amplitude Modulation (QAM).

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