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It is a well known fact that orthogonal frequency division multiplexing (OFDM) suffers from high peak to average power ratio (PAPR). The nonlinear distortion introduced by a high PAPR OFDM signal through practical amplifiers can further degrade the system performance. In this paper, we analyze the performance of a M-ary quadrature amplitude modulation (M-QAM) OFDM system which is subject to distortions...
It is a well known fact that orthogonal frequency division multiplexing (OFDM) suffers from high peak to average power ratio (PAPR). The nonlinear distortion introduced by an OFDM signal through practical amplifiers can further degrade the system performance. Due to the limited bandwidth in the radio frequency spectrum, it is impossible that wireless communication systems can operate in an environment...
In this paper, we investigate the effects of RF impairments and imperfect channel estimation (ICE) on the performance of quadrature amplitude modulation (QAM) for orthogonal frequency division multiplexing (OFDM) systems employing transmit diversity with two transmit antennas and one receive antenna in a Rayleigh fading environment. We derive the bit error rate (BER) expressions of space-time block...
In this paper, we investigate the effects of RF impairments and imperfect channel estimation (ICE) on the performance of quadrature amplitude modulation (QAM) for orthogonal frequency division multiplexing (OFDM) systems employing transmit diversity with two transmit antennas and one receive antenna in a Rayleigh fading environment. We derive the bit error rate (BER) expressions of space-time block...
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