An Efficient Hybrid PAPR Reduction for 5G NOMA-FBMC Waveforms

Кумар, Арун; Ambigapathy, Sivabalan; Masud, Mehedi; Jaha, Emad Sami; Chakravarty, Sumit; Sengar, Kanchan

doi:10.32604/cmc.2021.019092

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…D2D is one of the most popular techniques in 5G and beyond 5G. It enables the devices to transmit the information without passing it through a channel network [6]. In these techniques, the devices that are close to each other can interconnect and transmit data between them.…”

Section: Introductionmentioning

confidence: 99%

A Novel Approximate Message Passing Detection for Massive MIMO 5G System

Gour¹,

Pareek²,

Rajagopal³

et al. 2023

Computer Systems Science and Engineering

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Massive-Multiple Inputs and Multiple Outputs (M-MIMO) is considered as one of the standard techniques in improving the performance of Fifth Generation (5G) radio. 5G signal detection with low propagation delay and high throughput with minimum computational intricacy are some of the serious concerns in the deployment of 5G. The evaluation of 5G promises a high quality of service (QoS), a high data rate, low latency, and spectral efficiency, ensuring several applications that will improve the services in every sector. The existing detection techniques cannot be utilised in 5G and beyond 5G due to the high complexity issues in their implementation. In the proposed article, the Approximation Message Passing (AMP) is implemented and compared with the existing Minimum Mean Square Error (MMSE) and Message Passing Detector (MPD) algorithms. The outcomes of the work show that the performance of Bit Error Rate (BER) is improved with minimal complexity.

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Section: Introductionmentioning

confidence: 99%

A Novel Approximate Message Passing Detection for Massive MIMO 5G System

Gour¹,

Pareek²,

Rajagopal³

et al. 2023

Computer Systems Science and Engineering

View full text Add to dashboard Cite

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“…NOMA and OFDM both are multi-carrier techniques, where the single carrier is divided into several orthogonal subcarriers. High PAPR is seen as one of the huge constraints for the MCT waveforms [4]. There are several PAPR algorithms [5] implemented for OFDM which efficiently lessen the PAPR of conventional method.…”

Section: Introductionmentioning

confidence: 99%

PAPR Reduction of NOMA Using Vandermonde Matrix-Particle Transmission Sequence

Кумар¹,

Gupta²,

Sharma³

et al. 2022

Computer Systems Science and Engineering

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Non-Orthogonal Multiple Access (NOMA) is an ideal choice for 5G waveforms due to their characteristics such as high data rate, massive device connectivity, high spectral access, and effective frequency selective fading. Thus, it permits gigantic connectivity. The spectrum overlaps with NOMA, which consents several operators to segment the spectrum at the same frequency. These features make NOMA more suitable for use beyond 5G. Peak to Average Power (PAPR) is a major problem in Multi-Carrier Techniques (MCT) like NOMA and it also degrades the performance of the amplifier. The Partial Transmission Sequence (PTS) is a superior algorithm for moderating the PAPR. However, it also increases the complexity of the structure. The PAPR is reduced in NOMA by multiplying the NOMA signal with optimised phase vectors (P). The phase vectors are generated by using the Vandermonde Matrix (VM). In this work, we proposed a VM-PTS algorithm for the NOMA system, and the number of computations to search the optimal phase vectors for NOMA high PAPR signal is less as compared with existing PTS. The outcomes demonstrate that the performance of the recommended PTS in terms of PAPR, Bit Error Rate (BER), and complexity is better than the conventional PTS (C-PTS).

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Signalling overhead diminution in M-MIMO using NOMA transmission

Imran,

Hayat,

Ngah

2024

Discov Appl Sci

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With the increase in demand for mobile and Internet of Things devices, Orthogonal Multiple Access (OMA) cannot manage the maximum number of users. In this technique, the number of radio frequencies must be equivalent to the number of users. It causes to increase in signalling overhead. Therefore, it requires special attention to reduce the signalling overhead to escalate the spectral and energy efficiency. This paper investigates different Non Orthogonal Multiple Access (NOMA) techniques, and the results are compared with OMA techniques. A novel NOMA technique Multi User Shared Access (MUSA) is applied. It adjusts maximum users and has good spectral and energy efficiency compared to OMA techniques. In this proposed technique, maximum complex spreading codes are generated for the users and each user picks that code and transmits its data at the same radio frequency chain. The proposed scheme MUSA-NOMA has 12.8% more energy efficiency and 6.51% spectral efficiency compared to SCMA-NOMA and 32% more energy efficiency and 18.5% spectral efficiency compared to OMA. Article highlights Imagine you're using your phone in a crowded area where many people are also trying to connect, signalling congestion will occur. In traditional setups, it is difficult to manage everyone's signals. Instead of dealing with each person's signal separately, NOMA allows the communication system to treat similar groups together, streamlining the process. It's like having group discussions instead of one-on-one talks, making the whole communication setup more efficient and less complicated. This way, your phone and the network can handle many connections more smoothly, providing a better experience for everyone.

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An Efficient Hybrid PAPR Reduction for 5G NOMA-FBMC Waveforms

Cited by 6 publications

References 16 publications

A Novel Approximate Message Passing Detection for Massive MIMO 5G System

A Novel Approximate Message Passing Detection for Massive MIMO 5G System

PAPR Reduction of NOMA Using Vandermonde Matrix-Particle Transmission Sequence

Signalling overhead diminution in M-MIMO using NOMA transmission

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