Full-Duplex Non-Orthogonal Multiple Access Cooperative Overlay Spectrum-Sharing Networks With SWIPT
| Autor: | Quang Nhat Le, Octavia A. Dobre, Nam-Phong Nguyen, Animesh Yadav, Ruiqin Zhao |
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| Rok vydání: | 2021 |
| Předmět: |
Signal Processing (eess.SP)
Access network Optimization problem Computer Networks and Communications Renewable Energy Sustainability and the Environment business.industry Iterative method Computer science Transmitter Duplex (telecommunications) 020206 networking & telecommunications Throughput 02 engineering and technology Transmission (telecommunications) FOS: Electrical engineering electronic engineering information engineering 0202 electrical engineering electronic engineering information engineering Wireless 020201 artificial intelligence & image processing Electrical Engineering and Systems Science - Signal Processing business Computer network |
| Zdroj: | IEEE Transactions on Green Communications and Networking. 5:322-334 |
| ISSN: | 2473-2400 |
| Popis: | This paper proposes a novel non-orthogonal multiple access (NOMA) assisted cooperative spectrum sharing network, in which one of the full-duplex (FD) secondary transmitters (STs) is chosen among many for forwarding the primary transmitter's and its own information to primary receiver and secondary receivers, respectively, using NOMA technique. To stimulate the ST to conduct cooperative transmission and sustain its operations, the simultaneous wireless information and power transfer (SWIPT) technique is utilized by the ST to harvest the primary signal's energy. In order to evaluate the proposed system's performance, the outage probability and system throughput for the primary and secondary networks are derived in tight closed-form approximations. Further, the sum rate optimization problem is formulated for the proposed cooperative network and a rapid convergent iterative algorithm is proposed to obtain the optimized power allocation coefficients. Numerical results show that FD, SWIPT, and NOMA techniques greatly boost the performance of cooperative spectrum-sharing network in terms of outage probability, system throughput, and sum rate compared to that of half-duplex NOMA and the conventional orthogonal multiple access-time division multiple access networks. accepted for publication in the IEEE Transactions on Green Communications and Networking |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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