Achievable Rate of Indoor THz Communication Systems with Finite-Bit ADCs

Li, D., Qiao, D. and Zhang, L. (2018) Achievable Rate of Indoor THz Communication Systems with Finite-Bit ADCs. In: 10th International Conference on Wireless Communications and Signal Processing (WCSP 2018), Hangzhou, China, 18-20 Oct 2018, ISBN 9781538661192 (doi: 10.1109/WCSP.2018.8555900)

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In this paper, the achievable rate of the downlink terahertz (THz) communication systems equipped with finite-bit analog-to-digital converters (ADCs) at user sides is investigated. Considering the array of subarray antenna structure, the hybrid precoding with the maximum ratio transmission (MRT) and zero-forcing (ZF) precoding are applied at the baseband. The closed-form expression of the lower bound of the achievable rate is derived when the number of subarray antennas goes to infinity. It is shown that the coarse quantization distortion cannot be ignored in large antenna subarray regime. On the other hand, the rate loss caused by the phase uncertainties can be negligible in large subarray antenna regime. Overall, the impact of quantized receivers on the performance of indoor THz communication systems is characterized.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Zhang, Professor Lei
Authors: Li, D., Qiao, D., and Zhang, L.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Published Online:03 December 2018
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