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Throughput, Spectral, and Energy Efficiency of 5G Massive MIMO Applications Using Different Linear Precoding Schemes

Ibrahim Salah Kamel Hussein Rahouma Aziza I. Hussein Mohamed M. Mabrook
International Journal of Electronics and Telecommunications | 2023 | vol. 69 | No 1 | 185-191 | DOI: 10.24425/ijet.2023.144349
Keywords throughput massive MIMO spectral efficiency energy efficiency trade off
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Abstract

On fifth-generation wireless networks, a potential massive MIMO system is used to meet the ever-increasing request for high-traffic data rates, high-resolution streaming media, and cognitive communication. In order to boost the trade-off between energy efficiency (EE), spectral efficiency (SE), and throughput in wireless 5G networks, massive MIMO systems are essential. This paper proposes a strategy for EE 5G optimization utilizing massive MIMO technology. The massive MIMO system architecture would enhance the trade-off between throughput and EE at the optimum number of working antennas. Moreover, the EE-SE tradeoff is adjusted for downlink and uplink massive MIMO systems employing linear precoding techniques such as Multiple -Minimum Mean Square Error (M-MMSE), Regularized Zero Forcing (RZF), Zero Forcing (ZF), and Maximum Ratio (MR). Throughput is increased by adding more antennas at the optimum EE, according to the analysis of simulation findings. Next, utilizing M MMSE instead of RZF and ZF, the suggested trading strategy is enhanced and optimized. The results indicate that M-MMSE provides the best tradeoff between EE and throughput at the determined optimal ratio between active antennas and active users equipment’s (UE).
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Authors and Affiliations

Ibrahim Salah
1
Kamel Hussein Rahouma
2 3
Aziza I. Hussein
4
ORCID: ORCID
Mohamed M. Mabrook
5 1
ORCID: ORCID
  1. CCE Department, Faculty of Engineering, Nahda University, Beni-Suef, Egypt
  2. Department of Electrical Engineering, Faculty of Engineering, Minia University, Minia, Egypt
  3. Faculty of Computer Science, Nahda University, Beni-Suef, Egypt
  4. Electrical & Computer Eng. Dept., Effat University, Jeddah, KSA
  5. Faculty of Navigation Science & Space Technology, Beni-Suef University, Beni-Suef, Egypt

Subcarrier Filtering For Spectrally Efficient Multicarrier Modulation Schemes and Its Impact on PAPR: A Unified Approach

Kiran V. Shanbhag Dayakshini Sathish
International Journal of Electronics and Telecommunications | 2023 | vol. 69 | No 4 | 785-791 | DOI: 10.24425/ijet.2023.147702
Keywords OFDMA PAPR subcarrier filtering MCM scheme spectral efficiency prototype filter
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Abstract

Multicarrier modulation (MCM) based schemes have been a major contributing factor in revolutionizing cellular networks due to their ability to overcome fading. One of the popular scheme orthogonal frequency division multiple access (OFDMA), having been part of 4G, is also adapted as part of 5G enhanced mobile broadband (eMBB). Though it has several advantages, spectral efficiency (SE) and peak to average power ratio (PAPR) have been two major concerns which have attracted lot of attention resulting in proposals of several other MCM schemes. But most of these studies have treated the two issues independently. This paper in particular studies the subcarrier filtering approach to improve the spectral efficiency of MCM scheme and its impact on the overall PAPR of such schemes. The analysis shows that the PAPR improvement is also achieved by such filters meant for spectral confinement and the simulation results validate the same provoking.
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Authors and Affiliations

Kiran V. Shanbhag
1
Dayakshini Sathish
2
  1. Dept. of ECE, Anjuman Institute of Technology and Management, Bhatkal and Visvesvaraya Technological University, India
  2. Dept. of ECE, St Joseph Engineering Collegee, Mangaluru and Visvesvaraya Technological University, India

Analysis of Coverage and Area Spectral Efficiency under Various Design Parameters of Heterogeneous Cellular Network

Anum Abbasi M. Mujtaba Shaikh Safia Amir Dahri Sarfraz Ahmed Soomro Fozia Aijaz Panhwar
International Journal of Electronics and Telecommunications | 2021 | vol. 67 | No 4 | 639-645 | DOI: 10.24425/ijet.2021.137857
Keywords Heterogeneous network Coverage Area Spectral Efficiency 5G Ultra-dense network
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Abstract

As day by day the population is increasing, the use of mobile phones and different applications is increasing which requires high data rate for transmission. Homogeneous cellular network cannot fulfill the demand of mobile users, so creating a heterogeneous cellular network (HCN) is a better choice for higher coverage and capacity to fulfil the increasing demand of upcoming 5G and ultra-dense cellular networks. In this research, the impact of antenna heights and gains under varying pico to macro base stations density ratio from 2G to 5G and beyond on two-tier heterogeneous cellular network has been analyzed for obtaining optimum results of coverage and area spectral efficiency. Furthermore, how the association of UEs affects the coverage and ASE while changing the BSs antenna heights and gains has been explored for the two-tier HCN network model. The simulation results show that by considering the maximum macro BS antenna height, pico BS antenna height equal to user equipment (UE) antenna height and unity gains for both macro and pico tiers, the optimum coverage and area spectral efficiency (ASE) for a two-tier fully loaded heterogeneous cellular network can be obtained.
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Bibliography

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Authors and Affiliations

Anum Abbasi
1
M. Mujtaba Shaikh
1
Safia Amir Dahri
1
Sarfraz Ahmed Soomro
1
Fozia Aijaz Panhwar
1
  1. Department of Telecommunication Engineering, Quaid-e-Awam University of Engineering, Science & Technology (QUEST), Nawabshah, Sindh, Pakistan

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