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Oscillator phase noise is a common problem in communications modem design. This form of hardware circuit degradation has a very large impact in the higher-level modulation types used in typical ...

In last month’s column I described the principles behind OFDM, how it is generated and received and different parameters that can be adjusted to optimize the transmission for different uses. This ...

Have you ever heard terms like modulation scheme, orthoganal frequency division multiplexing (OFDM), or symbol rate and scratched your head? As new wireless standards emerge, we get excited about the ...