Approximate expressions for BER performance in downlink mmWave MU-MIMO hybrid systems with different data detection approaches

Millimetre-wave (mmWave) communications have been regarded as a key technology for the next-generation cellular systems since the huge available bandwidth can potentially provide the rates of multiple gigabits per second. Conventional precoding and combining techniques are impractical at mmWave scen...

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Bibliographic Details
Published in:IET communications Vol. 14; no. 14; pp. 2223 - 2230
Main Authors: Ortega, Alvaro Javier, Sampaio-Neto, Raimundo, David, Rodrigo Pereira
Format: Journal Article
Language:English
Published: The Institution of Engineering and Technology 25.08.2020
Subjects:
approximate BER expressions
approximation theory
BER performance
bit error rate
cellular radio
combining techniques
data detection
downlink mmWave MU‐MIMO hybrid systems
error statistics
hardware complexity
hybrid precoder‐combiner
massive MU‐MIMO mmWave systems
millimetre wave communication
millimetre‐wave communications
MIMO communication
Monte Carlo method
Monte Carlo methods
next generation networks
next‐generation cellular systems
power consumption
precoding
precoding techniques
Research Article
semianalytic approach
statistical moments
approximation theory
Monte Carlo method
approximate BER expressions
next generation networks
millimetre-wave communications
hybrid precoder-combiner
semianalytic approach
millimetre wave communication
precoding
data detection
massive MU-MIMO mmWave systems
bit error rate
power consumption
statistical moments
Monte Carlo methods
next-generation cellular systems
downlink mmWave MU-MIMO hybrid systems
BER performance
combining techniques
hardware complexity
precoding techniques
MIMO communication
cellular radio
error statistics
ISSN:1751-8628, 1751-8636
Online Access:Get full text
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Summary:Millimetre-wave (mmWave) communications have been regarded as a key technology for the next-generation cellular systems since the huge available bandwidth can potentially provide the rates of multiple gigabits per second. Conventional precoding and combining techniques are impractical at mmWave scenarios due to manufacturing costs and power consumption. Hybrid alternatives have been considered as a promising technology to provide a compromise between hardware complexity and system performance. This study examines, using a semi-analytic approach, the downlink performance of massive MU-MIMO mmWave systems in terms of the bit error rate (BER). Also, a general expression is derived to estimate an upper bound/approximation to the BER performance via the Monte Carlo method, which can be used for any hybrid precoder/combiner, modulation and different data detectors. Numerical results evidence that the approximate BER expressions provide values very close to the ones obtained through simulation using only two statistical moments related to parameters of the system, mean and variance.
ISSN:1751-8628
1751-8636
DOI:10.1049/iet-com.2019.1235