Hybrid Precoding Technique With Iterative Algorithm for MIMO-OFDM System

Lee, Seulgi; Lee, Wonseok; Ro, Jae-Hyun; You, Young-Hwan; Song, Hyoung‐Kyu

doi:10.1109/access.2020.3024691

Cited by 11 publications

(6 citation statements)

References 33 publications

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“…Lee [17] presented an iterative schemes-based analog precoding matrix for the MIMO-OFDM system. Additionally, one suitable precoding matrix with higher power than the hybrid precoding matrix was chosen for obtaining the optimal performance.…”

Section: Related Workmentioning

confidence: 99%

Error Correction Using Hybrid Coding Algorithm for BER Reduction in MIMO-OFDM

2022

IJIES

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The integration of multiple input multiple output (MIMO) -orthogonal frequency division multiplexing (OFDM) has massively received attention due to its reliability, spatial multiplexing gain and improved spatial diversity gain. However, the MIMO-OFDM is affected because of the errors that occurred during the communication such as inter symbol interference, and inter carrier interference (ICI). In this research, the error correction using hybrid coding algorithm (EC-HCA) is proposed for correcting the errors that occurred during the data transmission. The combination of quasi cyclic low-density parity check (QC-LDPC) and space time block coding (STBC) approaches are used in the hybrid coding which helps to achieve better data broadcasting over the MIMO-OFDM. Here, the interference among the transmitting antennas is avoided by using the STBC. Therefore, the ICI and inter symbol interference (ISI) that occurred in the MIMO-OFDM is minimized by the EC-HCA and it leads to achieving less BER. The performance of the EC-HCA method is analyzed by means of the bit error rate (BER) and peak signal to noise ratio (PSNR). The existing researches such as AED, PC-CC and TC-OPA are used to evaluate the performance of the EC-HCA method. The PSNR of the EC-HCA for 2 × 2 MIMO-OFDM is 10.24 dB which is high when compared to the AED, PC-CC and TC-OPA.

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Section: Related Workmentioning

confidence: 99%

Error Correction Using Hybrid Coding Algorithm for BER Reduction in MIMO-OFDM

2022

IJIES

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“…In mmWave communication, hybrid precoding techniques for wideband systems are a critical problem. In order to mitigate the performance decrease caused by frequency selectivity, a number of works have been studied recently in [13,14,16,17]. An improved hybrid beamforming model for mm-wave multi-user massive MIMO has been proposed in [18].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Beamforming for Massive MIMO Antenna Array Processor in 5G Wireless Communication

Razi,

Hasan,

Hossain

2024

Preprint

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In order to overcome limitations in available frequency ranges, regulatory agencies such as the FCC are actively searching for ways to maximize the efficiency of bandwidth usage and improve customer satisfaction within the field of radio communication. This study highlights the crucial significance of Massive Multiple Input Multiple Output (MIMO) systems in addressing these problems in 5G wireless networks, resulting in improved spectrum efficiency and stability. The study presents a geometric channel model for massive MIMO systems that make use of Uniform Linear Array (ULA), Uniform Rectangular Array (URA), and Uniform Circular Array (UCA). Following that, a hybrid beamforming system is introduced, which integrates enhanced algorithms in both digital and analog precoders. This innovative methodology significantly minimizes approximation errors, thus improving spectral efficiency (SE). A comparative analysis is performed by implementing the hybrid beamforming algorithm on different array topologies to evaluate the differences between fully digital and hybrid systems. Although there is a slight decrease in SE, the hybrid model offers a notable benefit by requiring fewer antenna components upto 98.43%, making it an attractive choice in terms of performance and cost. Moreover, the study emphasizes the exceptional efficacy of the hybrid approach in the URA system, particularly when combined with specific array configurations and found 38.72 bits/s/Hz SE.

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“…In order to meet the needs of global mobile communication in the next ten to fteen years, the International Telecommunication Union has launched the IMT-Advanced International Mobile Communication Enhancement System, hereinafter referred to as the IMT-A project. e IMT-A system is speci cally de ned as a mobile communication system with capabilities exceeding IMT-2000, capable of providing advanced and extensive telecommunication services based on packet transmission including mobile and xed network support [2]. e IMT-A system has the following important characteristics: on the basis of maintaining cost e ciency and supporting a wide range of exible services and applications, it can achieve a high degree of universality worldwide; it has the ability to support mobile services and xed network services; it can provide higher quality mobile services; its terminals have global applicability; it can provide friendly applications, services, and devices; it can support worldwide roaming capabilities and provide enhanced peak rates and highquality transmission to meet new business and application requirements.…”

Section: Introductionmentioning

confidence: 99%

Study on Cooperative Multipoint Communication Precoding Algorithm under SLNR-MMSE Framework

Fan

2022

Advances in Multimedia

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With the rapid growth of demand for wireless data services and the continuous introduction of new air interface technologies, mobile communication systems continue to face new challenges in supporting high-speed multimedia service transmission and achieving seamless coverage. In order to meet the requirements of the IMS system in terms of bandwidth, peak rate, communication throughput, etc., multiantenna enhancement technology and cooperative multipoint transmission technology have become research hotspots as key technologies. In the study of multiuser system, this paper focuses on the precoding technology based on noncode book, based on the minimum mean square error criterion and the maximum letter leakage noise ratio criterion, studies the precoding technology of different multiuser systems, expounds the collaborative multipoint transmission system, and makes a basic classification. The signal leakage-to-noise ratio precoding algorithm and the minimum mean square error precoding algorithm are analyzed in detail. In view of the shortcomings of these two algorithms, this paper takes the minimum sum of the total mean square error of the system as the optimization goal of the combinations of precoding and power allocation. The precoding algorithm of SLNR-MMSE is proposed. The simulation analysis shows that the proposed algorithm has certain advantages over other algorithms in terms of bit error rate and system capacity. It shows that this study is important for optimizing collaborative multipoint communication system.

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Hybrid Precoding Technique With Iterative Algorithm for MIMO-OFDM System

Cited by 11 publications

References 33 publications

Error Correction Using Hybrid Coding Algorithm for BER Reduction in MIMO-OFDM

Error Correction Using Hybrid Coding Algorithm for BER Reduction in MIMO-OFDM

Hybrid Beamforming for Massive MIMO Antenna Array Processor in 5G Wireless Communication

Study on Cooperative Multipoint Communication Precoding Algorithm under SLNR-MMSE Framework

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