Energy-Efficient Downlink for Non-Orthogonal Multiple Access with SWIPT under Constrained Throughput

Non-Orthogonal Multiple Access (NOMA) has been proposed recently as an emerging radio access technology for the Fifth Generation (5G) to achieve high spectral efficiency (SE). In addition, simultaneous wireless information and power transfer (SWIPT) has been receiving exceptional attention because of its role in increasing energy efficiency (EE). In this paper, the performance of the downlink SWIPT-NOMA system has been evaluated. In this paper, signal to interference and noise ratio (SINR) is derived for near and far users with outage probability for each user, where the near user acts as an energy harvesting (EH) node. The Genetic algorithm (GA) is used as an optimization technique for the power splitting ratio and power allocation coefficients to maximize the EE under eligible SE. The outage probability for the near and far user is taken into consideration for the optimization process. In this work, the results from the SE–EE metric show that the maximum EE reached 0.325 Mbits/J at SE of 9 bits/sec/Hz.

[1]  Rosdiadee Nordin,et al.  Intelligent cooperation management of multi-radio access technology towards the green cellular networks for the twenty-twenty information society , 2017, Telecommun. Syst..

[2]  Di Yuan,et al.  Power and Channel Allocation for Non-Orthogonal Multiple Access in 5G Systems: Tractability and Computation , 2016, IEEE Transactions on Wireless Communications.

[3]  Rosdiadee Nordin,et al.  Wireless Energy Harvesting with Cooperative Relaying under the Best Relay Selection Scheme , 2019, Energies.

[4]  Phone Lin,et al.  Toward self-sustainable cooperative relays: state of the art and the future , 2015, IEEE Communications Magazine.

[5]  H. Vincent Poor,et al.  Cooperative Non-Orthogonal Multiple Access in 5G Systems , 2015, IEEE Communications Letters.

[6]  Gregory W. Wornell,et al.  Cooperative diversity in wireless networks: Efficient protocols and outage behavior , 2004, IEEE Transactions on Information Theory.

[7]  Rosdiadee Nordin,et al.  Energy Harvesting with Link Adaptation under Different Wireless Relaying Schemes , 2018, J. Commun..

[8]  H. Vincent Poor,et al.  Cooperative Non-orthogonal Multiple Access With Simultaneous Wireless Information and Power Transfer , 2015, IEEE Journal on Selected Areas in Communications.

[9]  Xiao Ma,et al.  Orthogonal Power Division Multiple Access: A Green Communication Perspective , 2016, IEEE Journal on Selected Areas in Communications.

[10]  Rosdiadee Nordin,et al.  Survey of Green Radio Communications Networks: Techniques and Recent Advances , 2013, J. Comput. Networks Commun..

[11]  Geoffrey Ye Li,et al.  An Overview of Sustainable Green 5G Networks , 2016, IEEE Wireless Communications.

[12]  Rosdiadee Nordin,et al.  Energy harvesting with cooperative networks and adaptive transmission , 2017, 2017 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT).

[13]  Rosdiadee Nordin,et al.  How to make key 5G wireless technologies environmental friendly: A review , 2018, Trans. Emerg. Telecommun. Technol..

[14]  Jinho Choi,et al.  Non-Orthogonal Multiple Access in Downlink Coordinated Two-Point Systems , 2014, IEEE Communications Letters.

[15]  Jun Li,et al.  Design of Generalized Analog Network Coding for a Multiple-Access Relay Channel , 2015, IEEE Transactions on Communications.

[16]  Octavia A. Dobre,et al.  Power-Domain Non-Orthogonal Multiple Access (NOMA) in 5G Systems: Potentials and Challenges , 2016, IEEE Communications Surveys & Tutorials.

[17]  In-Ho Lee,et al.  Non-Orthogonal Multiple Access in Coordinated Direct and Relay Transmission , 2015, IEEE Communications Letters.

[18]  George K. Karagiannidis,et al.  A Survey on Non-Orthogonal Multiple Access for 5G Networks: Research Challenges and Future Trends , 2017, IEEE Journal on Selected Areas in Communications.

[19]  In-Ho Lee,et al.  Capacity Analysis of Cooperative Relaying Systems Using Non-Orthogonal Multiple Access , 2015, IEEE Communications Letters.

[20]  Mahamod Ismail,et al.  Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review , 2017 .

[21]  H. Vincent Poor,et al.  A Survey of Energy-Efficient Techniques for 5G Networks and Challenges Ahead , 2016, IEEE Journal on Selected Areas in Communications.