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Related Experiment Video

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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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User Oriented Transmit Antenna Selection in Massive Multi-User MIMO SDR Systems.

Shida Zhong¹, Haogang Feng¹, Peichang Zhang¹

¹College of Electronics and Information Engineering, Shenzhen University, Nanhai Avenue 3688, Shenzhen 518060, China.

Sensors (Basel, Switzerland)

|September 3, 2020

Summary

This summary is machine-generated.

This study introduces a new transmit antenna selection (TxAS) method for multi-user MIMO systems. The user-oriented smart TxAS (UOSTxAS) scheme enhances data rates for priority users while maintaining performance for others.

Keywords:

massive multi-user multiple-input multiple-output (massive MU-MIMO)precoding software defined radio (SDR)transmit antenna selection user-oriented

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Area of Science:

Wireless Communications
Signal Processing

Background:

Multi-user MIMO (MU-MIMO) systems offer high data rates but face challenges in optimizing performance across diverse user needs.
Conventional MU-MIMO systems can be improved with efficient antenna selection strategies.

Purpose of the Study:

To propose a novel transmit antenna selection (TxAS) aided MU-MIMO system.
To enhance data rates for users with varying Quality of Service (QoS) requirements.
To reduce decoding complexity using zero-forcing beamforming (ZFBF).

Main Methods:

Developed a user-oriented smart TxAS (UOSTxAS) scheme prioritizing QoS.
Implemented a zero-forcing beamforming (ZFBF) linear precoding scheme.
Utilized a software-defined radio (SDR) MIMO communication hardware platform for real-world testing.

Main Results:

The UOSTxAS scheme significantly improves data rates for priority users compared to conventional MU-MIMO.
Performance for common users requiring lower data rates is reasonably maintained.
The implemented SDR platform demonstrates the practical viability of the UOSTxAS MU-MIMO scheme.

Conclusions:

TxAS is an effective technique for enhancing MU-MIMO system performance.
The UOSTxAS scheme offers a balanced approach to meet diverse user QoS demands.
The developed SDR prototype represents a significant advancement in practical UOSTxAS MU-MIMO implementation.