Abstract
Transceiver hardware impairment (THI) is inevitable for high-date rate terahertz (THz) communication. Existing statistical analysis either neglects THI’s effect or provides approximate results when analyzing the performance of the THz system combined with channel fading and antenna misalignment. In this letter, we develop exact analytical expressions for the average signal-to-noise ratio (SNR), ergodic capacity, and average bit-error-rate (BER) performance of a THz wireless link under the combined effect of α-μ fading channel, zero-boresight pointing errors, and the Gaussian distributed THI. We also derive asymptotic expressions for the outage probability and average BER, which shows that the diversity order of the THz link is independent of THI’s parameters. Simulations validate the derived analytical results and demonstrate the impact of the THI parameters on the THz performance.
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