A Nonlinear Detector for Uplink SC-FDE mm-Wave Hybrid Massive MIMO under Hardware Impairments

Date

2021-06-01

Author

Salman, Murat Babek
Güvensen, Gökhan Muzaffer

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In this paper, we propose a detector structure for fully connected hybrid massive MIMO systems with transceiver impairments at user equipments. In literature, memoryless compensation of nonlinear effects at the receiver side is recently proposed for systems employing frequency domain equalization. However, in these studies, the system model is restricted to be symbol sampled, where pulse shaping and fractional delays in channel impulse response (CIR) are not taken into consideration. However, memory effects of nonlinear distortion become more apparent when the system is considered in the upsampled signal domain. In this study, we propose a receiver architecture, where the received signal of each user is nonlinearly modified by the post-distortion unit with memory to recover the transmitted symbols. In addition, based on the proposed receiver structure, a novel detection criterion is introduced in order to compensate the distortion amplification due to fractional delays in the CIR. Lastly, performance improvement brought by the proposed detector is verified by numerical simulations.

Subject Keywords

Massive MIMO, Nonlinear post-distortion, Non-linear PA, Hybrid beamforming

URI

https://hdl.handle.net/11511/94011

DOI

https://doi.org/10.1109/icc42927.2021.9500524

Conference Name

2021 IEEE International Conference on Communications, ICC 2021

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

M. B. Salman and G. M. Güvensen, “A Nonlinear Detector for Uplink SC-FDE mm-Wave Hybrid Massive MIMO under Hardware Impairments,” presented at the 2021 IEEE International Conference on Communications, ICC 2021, Virtual, Online, Kanada, 2021, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/94011.