RF-chain ADC Resolution Trade-off in MIMO Hybrid Architecture

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.

Joshi Satya, Juntti Markku

A4 Article in conference proceedings

Conference Record of the Fifty-Second Asilomar Conference on Signals, Systems & Computers

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

https://doi.org/10.1109/ACSSC.2018.8645217 http://urn.fi/urn:nbn:fi-fe202003238723