Energy Efficiency Analysis of Antenna Selection Techniques in Massive MIMO-OFDM System with Hardware Impairments
Joint Authors
Source
Journal of Computer Networks and Communications
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-15
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Information Technology and Computer Science
Abstract EN
In massive multiple-input multiple-output (M-MIMO) systems, a large number of antennas increase system complexity as well as the cost of hardware.
In this paper, we propose an M-MIMO-OFDM model using per-subcarrier antenna selection and bulk antenna selection schemes to mitigate these problems.
Also, we derive a new uplink and downlink energy efficiency (EE) equation for the M-MIMO-OFDM system by taking into consideration the antenna selection schemes, power scaling factor (g=0.25, 0.5), and a range of hardware impairments {κBS, κUE ϵ (0, 0.052, 0.12)}.
In addition, we investigate a trend of EE by varying various parameters like number of base station antennas (BSAs), SNR, level of hardware impairments, total circuit power consumption, power optimization, antenna selection schemes, and power scaling factor in the proposed M-MIMO-OFDM model.
The simulation results thus obtained show that the EE increases with increase in the value of SNR.
Also, it increases abruptly up to 100 number of BSA.
However, the increase in the EE is not significant in the range of 125 to 400 number of BSA.
Further, the bulk antenna selection technique has comparatively more EE than the per-subcarrier antenna selection.
Moreover, EE gaps between antenna selection schemes decrease with increase in the value of hardware impairments and power scaling factor.
However, as the hardware degradation effect increases, the EE of the bulk antenna selection scheme suffers more degradation as compared to the Per-subcarrier antenna selection scheme.
It has also been observed that EE performance is inversely proportional to the total circuit power consumption (λ+γ) and it increases with the power optimization.
American Psychological Association (APA)
Singal, Anuj& Kedia, Deepak. 2018. Energy Efficiency Analysis of Antenna Selection Techniques in Massive MIMO-OFDM System with Hardware Impairments. Journal of Computer Networks and Communications،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1182810
Modern Language Association (MLA)
Singal, Anuj& Kedia, Deepak. Energy Efficiency Analysis of Antenna Selection Techniques in Massive MIMO-OFDM System with Hardware Impairments. Journal of Computer Networks and Communications No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1182810
American Medical Association (AMA)
Singal, Anuj& Kedia, Deepak. Energy Efficiency Analysis of Antenna Selection Techniques in Massive MIMO-OFDM System with Hardware Impairments. Journal of Computer Networks and Communications. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1182810
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1182810