Power Allocation and Equivalent Transmit FDA Beamspace for 5G mmWave NOMA Networks: Meta-Heuristic Optimization Approach

Most of the existing works in millimeter wave (mmWave) and non-orthogonal multiple access (NOMA) communications (mmWave NOMA) employs phased array (PA) antennas which yield only angle beamspace without range dependent, range-interference suppression and "dot-shaped" array resolution. In th...

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Vydáno v:IEEE transactions on vehicular technology Ročník 71; číslo 9; s. 9635 - 9646
Hlavní autoři: Nusenu, Shaddrack Yaw, Huaizong, Shao, Ye, Pan
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.09.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
5G mobile communication
Algorithms
and 5G
Angle-range beamspace
Antenna arrays
Antennas
Array signal processing
Efficiency
Equivalence
frequency diverse array (FDA)
Heuristic
Heuristic methods
Millimeter waves
Mixers
mmWave communications
NOMA
non-orthogonal multiple access (NOMA)
Nonorthogonal multiple access
Optimization
Phased arrays
Power management
Receiving antennas
Resource management
Transmitting antennas
ISSN:0018-9545, 1939-9359
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Popis
Shrnutí:Most of the existing works in millimeter wave (mmWave) and non-orthogonal multiple access (NOMA) communications (mmWave NOMA) employs phased array (PA) antennas which yield only angle beamspace without range dependent, range-interference suppression and "dot-shaped" array resolution. In this paper, we propose a collocated transmitter (Tx) - receiver (Rx) mmWave NOMA system where frequency diverse array (FDA) antennas are utilized. FDA employs small frequency increments across the element indices which yields angle-range dependent beamspace. Herein, an equivalent radiate beamspace is designed to serve the users. Further, to ensure user equity, we formulate objective function to max-min achievable sum rate subject to power allocation and BS equivalent FDA transmit beamspace along the users. Since the problem is not convex, a boundary-compressed Bat meta-heuristic optimization algorithm is devised to provide a sub-optimal solution by optimizing the frequency increments to synthesis the BS beamspace along the users. The achievable secrecy rate, cost efficiency (CE), economic efficiency (ECE), and secrecy energy efficiency (SEE) are derived for the users. Both theoretical analysis and simulation results indicate that the proposed scheme would constitute an excellent nominee for 5G mmWave NOMA communication applications.
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ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2022.3180778