NDLI: Trade-offs between the quality of service, computational cost and cooling complexity in interference-dominated multi-user SDMA systems

Content Provider	IET Digital Library
Author	Aslan, Yanki Puskely, Jan Roederer, Antoine Yarovoy, Alexander
Abstract	The future fifth generation (5G) systems will aim to design low-cost phased array base station antenna systems at mm-waves for simultaneous multiple beamforming with enhanced spatial multiplexing, limited interference, acceptable power consumption, suitable processing complexity, and passive cooling. In this study, a multi-user space division multiple access (SDMA) model is developed to investigate the trade-off between the quality of service (QoS), computational complexity in beamforming and cooling requirements for various use cases, and a number of users. The QoS at the user ends is rated by assessing the statistical signal-to-interference-plus-noise ratios (SINRs). Two beamforming algorithms, namely conjugate beamforming (CB) and zero-forcing (ZF), are considered and compared. Depending on the deployment scenario, rotated and optimised array layouts are proposed to be used in CB with the least computational complexity while providing relatively good QoS. Different reduced-complexity ZF algorithms are introduced as a compromise between the SINR performance and computational burden. The impact of the number of simultaneously served users on the thermal management in active integrated 5G base station antenna arrays is investigated as well.
Starting Page	144
Ending Page	151
Page Count	8
ISSN	17518628
Volume Number	14
e-ISSN	17518636
Issue Number	Issue 1, Jan (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/14/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.0206
Journal	IET Communications
Publisher Date	2019-11-07
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	5G Mobile Communication Acceptable Power Consumption Active Integrated 5G Base Station Antenna Array Antenna Array Antenna Phased Array Array Base Station Antenna System Array Layouts Array Signal Processing Beamforming Algorithm Beamforming Cooling Requirements Communication Switching Computational Burden Computational Complexity Computational Cost Cooling Complexity Different Reduced-complexity ZF Algorithm Electromagnetic Compatibility Enhanced Spatial Multiplexing Future Fifth Generation System Interference Interference-dominated Multiuser SDMA System Millimetre Wave Antenna Array Millimetre Wave Communication Mm-Wave Mobile Radio System Multiple Access Communication Multiuser Space Division Multiple Access Model Passive Cooling Quality of Service Radio Frequency Interference Relatively Good QoS Signal Processing And Detection Simultaneous Multiple Beamforming Simultaneously Served User Space Division Multiple Access Space Division Multiplexing Statistical Signal-to-interference-plus-noise Ratios Suitable Processing Complexity
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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