access icon free Full-duplex massive MIMO relaying systems with low-resolution ADCs over Rician fading channels

© The Institution of Engineering and Technology
Received 24/12/2018, Accepted 20/08/2019, Revised 06/07/2019, Published 22/08/2019

In this study, the authors study the achievable rate of the full-duplex massive multiple-input multiple-output (MIMO) relaying system with low-resolution analogue-to-digital converters (ADCs) over Rician fading channels, where maximum ratio combining/maximum ratio transmission are adopted. They first investigate the approximate rate with perfect channel state information by considering the effect of the quantisation error, the loop interference (LI) and the Rician K-factor. Then, they analyse the relationship between the achievable rate and several important variables in the Rician fading channel. It is shown that a large number of antenna arrays at the relay can compensate for the rate loss caused by quantisation at the relay end, and the quantisation bits at the destination have a greater influence on the rate than the quantisation bits at the relay end. In particular, as the number of antennas increases, the rate determined by the quantisation bits at the destination tends to a finite value. They also conclude that the Rician K-factor is proportional to the rate and the attenuation of the rate is very obvious when the LI is large. Finally, the simulation results are presented to verify their analysis.

Inspec keywords: analogue-digital conversion; antenna arrays; diversity reception; MIMO communication; Rician channels; quantisation (signal); radiofrequency interference; relay networks (telecommunication)

Other keywords: full-duplex massive multiple-input multiple-output relaying system; maximum ratio combining; quantisation bits; quantisation error; antenna arrays; loop interference; low-resolution analogue-to-digital converters; full-duplex massive MIMO relaying systems; low-resolution ADC; perfect channel state information; Rician fading channel; maximum ratio transmission; Rician K-factor

Subjects: Electromagnetic compatibility and interference; Radio links and equipment; Signal processing and conditioning equipment and techniques; Antenna arrays

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