RF-chain ADC resolution trade-off in MIMO hybrid architecture

Joshi, Satya; Juntti, Markku (2019-02-21)
 
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https://doi.org/10.1109/ACSSC.2018.8645217

Joshi, Satya
Juntti, Markku
Institute of Electrical and Electronics Engineers
21.02.2019

S. Joshi and M. Juntti, "RF-chain ADC Resolution Trade-off in MIMO Hybrid Architecture," 2018 52nd Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, USA, 2018, pp. 259-263. doi: 10.1109/ACSSC.2018.8645217

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doi:https://doi.org/10.1109/ACSSC.2018.8645217
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https://urn.fi/URN:NBN:fi-fe202003238723
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Abstract

The problem of spectral efficiency maximization for hybrid analog/digital transceiver architecture, subject to both transmit and receiver power constraints, is considered. With the processing power constraint of the receiver, the number of radio frequency (RF) chains and analog-to-digital (ADC) resolution used greatly affect the achievable transmission rate. We formulate an optimization problem to find this trade-off, and provide an (a) efficient algorithm to solve it. Numerical results show that for power constrained hybrid receiver, there is a trade-off between the number of RF chains and the ADC resolution, that can obtain maximal spectral efficiency.

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