Transmission Techniques for 5G and Beyond

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: closed (10 December 2021) | Viewed by 418

Special Issue Editor

1. Instituto de Telecomunicações, 1049-001 Lisboa, Portugal
2. Department of Sciences and Technologies, Universidade Autónoma de Lisboa, 1169-023 Lisboa, Portugal
Interests: cellular communications; 5G and beyond; massive-MIMO; millimeter-wave communications; block transmission techniques; NOMA
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Special Issue Information

Dear Colleagues,

Transmission techniques, such as massive multiple-input multiple-output (MIMO), non-orthogonal multiple access (NOMA), block transmission techniques, or millimeter-wave communications (mm-Wave) are expected to be a crucial part of 5G (Fifth Generation) systems and beyond. Similar techniques are being adopted by IEEE 802.11 standards, such as in 802.11ad, where orthogonal frequency-division multiple access (OFDMA), mm-Wave, and massive MIMO (m-MIMO) is utilized. However, mm-Wave transmissions have significant problems, such as high free-space path losses, very small diffraction effects, huge losses due to obstacles and implementation difficulties, namely with power amplification. On the other hand, small wavelengths mean that we can have small antennas and small-sized antenna aggregates with a large number of elements, facilitating the deployment of m-MIMO schemes. The use of multiple antennas at both the transmitter and receiver aims to improve performance or to increase the symbol rate of systems, but it usually requires higher implementation complexity. m-MIMO schemes involving several tens or even hundreds of antenna elements are central technologies of 5G systems, where higher capacity and spectral efficiency are required, as compared to previous systems, but where low complexity is an important issue. OFDM/A suffers from a high peak-to-average power ratio. NOMA is an alternative multiple access technique, which tends to present better spectral efficiency, but clustering is still a limitation, and coordination between users (coordinated NOMA) makes it more effective.

This Special Issue, “Transmission Techniques for 5G and Beyond”, will provide an overview of 5G communications and beyond, in terms of network, services, and requirements, while describing advances in transmission techniques foreseen for future versions. All new ideas about how to improve performance, capacity, and/or spectrum efficiency of transmission techniques for 5G and beyond, while keeping computational cost at an acceptable level are most welcome. Contributions to this Special Issue should provide an overview of how the proposed transmission techniques bring added value to the advances of cellular communications, in terms of performance and/or advanced requirements.

The topics of this Special Issue include, but are not limited to the following:

  • 5G and beyond
  • Massive MIMO
  • Millimeter-wave communications
  • Block transmission techniques
  • Non-orthogonal multiple access

Prof. Mário Marques da Silva Silva
Guest Editor

Manuscript Submission Information

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Published Papers

There is no accepted submissions to this special issue at this moment.
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