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We analyze the effect of Wiener phase noise on the capacity and signal-to-interference-plus-noise (SINR) ratio. Our analysis includes phase noise at the transmitter and receiver end of an OFDM communication link. We see that the capacity and SINR are random variables whose distribution depends on the phase noise and the fading channel. Using a Taylor series approximation, we show that the random variable,...
We study the performance of a two-hop full-duplex OFDM relay link, where the relay, or in-band repeater, amplifies and forwards its input signal on the same channel as the main transmitter. We derive new closed-form expressions for the end-to-end signal-to-interference and noise ratio (SINR) when the multipath channels are modeled with clustered exponential power-delay profiles. Our system model incorporates...
Orthogonal frequency division multiplexing system is known to be sensitive to nonlinear distortion due to its high peak-to-average power ratio (PAPR). Without proper linearization techniques, power efficiency is often compromised to control the nonlinear distortion caused by power amplifiers. The nonlinear distortion caused by a power amplifier is due to clipping distortion and compressive gain distortion...
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