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OFDM transmission step-by-step
Understand OFDM and process each step using example values. A pilot sequence initializes the equalizer. Transmit an OFDM symbol and detect ISI-free.
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Guard interval and ISI-free OFDM transmission
Explore how OFDM implements an ISI-free transmission and verify the required guard interval length for a multipath channel. Modify the delay spread of a fading channel and check the received signal points for ISI.
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OFDM BER vs Eb/N0 in AWGN channel
Verify the theoretical BER of IEEE 802.11ac OFDM setups with simulation results! Why does OFDM show an increased BER compared to single carrier systems in AWGN channel?
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Peak-to-average power ratio of OFDM systems
Why do OFDM systems show a high peak-to-average power ratio? How does the PAPR depend on the number of subcarriers? Has the underlying M-QAM constellation size any impact?
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OFDM Parameter-Calculation
Learn the most important things about OFDM and its parameters. Show off your knowledge in the WiFi-parameter calculation exercise.
