Energy-Efficient Analog Beamforming with Short Packets in Millimeter-Wave MIMO Systems

The energy-aware design of fully analog precoders and combiners is investigated in this paper. To that aim, we consider a millimeter-wave short-packet communication scenario where power consumption and hardware complexity constitute relevant factors. User terminals employ a single channel encoder an...

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Bibliographic Details
Published in:Conference record - Asilomar Conference on Signals, Systems, & Computers pp. 439 - 444
Main Authors: Borras, Jordi, Molina, Francesc, Lopez-Valcarce, Roberto, Sala-Alvarez, Josep
Format: Conference Proceeding
Language:English
Published: IEEE 01.11.2020
Subjects:
Analog beamforming
Array signal processing
Energy efficiency
Hardware
Millimeter wave communication
mmWave MIMO
packet error rate
Phase shifters
Receiving antennas
short-packet communication
Transmitting antennas
ISSN:2576-2303
Online Access:Get full text
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Summary:The energy-aware design of fully analog precoders and combiners is investigated in this paper. To that aim, we consider a millimeter-wave short-packet communication scenario where power consumption and hardware complexity constitute relevant factors. User terminals employ a single channel encoder and, at hardware level, they implement analog architectures that combine phase shifters and switches. Additionally, transmitting terminals also leverage a power control system. An energy efficiency figure of merit is considered, and its optimization subject to finite packet-length constraints is tackled cyclically over disconnected feasible sets. Numerical results are reported firstly, to illustrate the advantages of the proposed short-packet fully analog design, secondly, to compare its performance to that of on-off beamforming, and finally, to discuss the optimality of proposed optimization algorithm.
ISSN:2576-2303
DOI:10.1109/IEEECONF51394.2020.9443474