Performance Analysis of Linear Precoding Techniques over the Fading Channel for MU-MIMO

Doneriya, Archana; Panchal, Manish; Lal, Jaya Dipti

doi:10.1109/icacat.2018.8933697

Cited by 9 publications

(2 citation statements)

References 15 publications

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“…Following that, ZCT precoding technique as one of the most notable linear precoding techniques for OFDM based NOMA systems will be discussed. [21] We will also review the delta sigma modulator for visible light communication channel for OFDM based NOMA system. Finally, the ZCT precoded DSM OFDM based NOMA system design will be discussed.…”

Section: Proposed System Design and Considerationsmentioning

confidence: 99%

An Efficient PAPR Reduction Scheme for Delta Sigma Modulated Hybrid NOMA System

Mathur

Deepa

2023

Preprint

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System based on orthogonal frequency division multiplexing with non-orthogonal multiple access represents one of the most promising technology for the next generation of broadcasting and communication systems. One of the main challenges in OFDM-based systems is achieving a high peak-to-average power ratio (PAPR). This paper proposes a novel precoding method, namely Zadoff-Chu matrix transform, for PAPR reduction in OFDM NOMA systems. On top of that, continuous-magnitude OFDM signals require an expensive mixed-signal DAC, and LED drivers need to be modified. Using delta-sigma modulators (DSM), we propose that continuous magnitude OFDM symbols can be converted into signals of LED driver using visible light OFDM systems by introducing ZCT precoded DSM based OFDM NOMA system in this work. This can reduce nonlinear distortion in the DAC and driving circuits due to a high PAPR. We demonstrate that the developed scheme successfully reduces PAPR in a remarkably better way.

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Section: Proposed System Design and Considerationsmentioning

confidence: 99%

An Efficient PAPR Reduction Scheme for Delta Sigma Modulated Hybrid NOMA System

Mathur

Deepa

2023

Preprint

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“…Achievable sum rate and BER of block diagonalization (BD), ZF, and MRT were analysed depending on SNR and the number of transmitter-receiver antennas. The authors in [31] analysed sum rate performance and BER of MMSE and ZF precoder for MU-MIMO downlink with assuming CSI. Rayleigh, Rician and Nakagami fading channels have been considered.…”

Section: Literature Reviewmentioning

confidence: 99%

Performance analysis of linear detection for uplink massive MIMO system based on spectral and energy efficiency with Rayleigh fading channels in 3D plotting pattern

Soufy

Nashwan

Al-Kamali

et al. 2023

The Journal of Engineering

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Massive multiple-input multiple-output (MIMO) is a critical component of 5G cellular networks, which utilizes large numbers of antennas at both the transmitter and receiver to enhance throughput and radiated energy efficiency. Various linear detection techniques are employed with massive MIMO to counteract path loss and interference, and maximize throughput. The first aim of this paper is to analyse the performance of uplink massive MIMO system for different linear detection techniques including: Maximum ratio combining (MRC), zero-forcing (ZF), regularized ZF (RZF) and minimum mean squared error (MMSE) over Rayleigh channel model. The second aim is to jointly investigate the optimal values of signal-to-noise ratio (SNR), the number of antennas M and the number of users K for maximizing the spectral efficiency (SE) and energy efficiency (EE) through simulation using MATLAB and 3D plotting patterns. The obtained results show that the best SE and EE are achieved by uplink massive MIMO setup while using optimal values of SNR, M and K. It is observed that MMSE achieved the best performance. However, it requires estimation of average SNR at BS. Therefore, the best choice is ZF or RZF without any need for SNR estimation.

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A novel precoded digitized OFDM based NOMA system for future wireless communication

Mathur

Deepa

2022

Optik

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Performance Analysis of Linear Precoding Techniques over the Fading Channel for MU-MIMO

Cited by 9 publications

References 15 publications

An Efficient PAPR Reduction Scheme for Delta Sigma Modulated Hybrid NOMA System

An Efficient PAPR Reduction Scheme for Delta Sigma Modulated Hybrid NOMA System

Performance analysis of linear detection for uplink massive MIMO system based on spectral and energy efficiency with Rayleigh fading channels in 3D plotting pattern

A novel precoded digitized OFDM based NOMA system for future wireless communication

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