Wireless-Powered Cooperative MIMO NOMA Networks: Design and Performance Improvement for Cell-Edge Users
Abstract
:1. Introduction
- Extending our previous work in terms of single-input single-output (SISO) NOMA strategy [17], we introduce a realistic scenario with multiple antennas which is equipped at the far NOMA user in the considered NOMA. This model also employs multiple-antenna BS. To provide the capability for energy harvesting, the near NOMA user can re-use the harvested power to serve the far NOMA user, who has a weaker channel condition. Two schemes are investigated with or without the existence of a direct link between the BS, and hence performance of far NOMA user is determined.
- We first examine outage performance at the near user, who has a single antenna. Then, we derive outage probability expressions for the near NOMA user and the outage comparison is exhibited with the far NOMA user. The number of deployed antennas or location arrangement of the BS, relay, and destination node are examined as crucial impacts on the considered outage performance.
- In addition, to extract further metrics and highlight the system behavior, throughput performance of these users is presented. Targeting the threshold signal-to-noise ratio (SNR), optimal throughput can be achieved via a numerical method. Such an evaluation is presented in the numerical results section.
- Our findings reveal that a higher number of transmit antennas at the BS provides a superior outage probability for both the near and far users compared to the traditional model. In addition, outage performance of the far NOMA user will be improved when increasing the number of its received antennas. Moreover, comparing the proposed multiple-antenna NOMA system with different locations of the user and energy-harvesting time, we provide detailed guidelines for the design of real cooperative NOMA, achieving better outage performance.
2. System Model
- Scheme I: The intends to communicate with the far user under the assistance of the near user . In this situation, is regarded as the relaying user and the DF protocol is employed to decode and forward information to . A direct link does not exist between and .
- Scheme II: Under the existence of a direct link between and , a relay link is still employed to support . As a result, a more complex process can be seen at the far NOMA user, as two signal streams are received. The question is of which scheme is suitable for application in such a NOMA network.
3. Exact Outage and Throughput in Delay-Limited Mode of Two Proposed Schemes
3.1. Scheme I: NOMA Network without Direct Link between and Far User
3.2. Scheme II: NOMA with Presence of Direct Link between and Far User
3.3. Throughput Performance
4. Numerical Results
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Appendix A. Proof of Lemma 1
Appendix B. Proof of Proposition 1
References
- Islam, S.M.R.; Zeng, M.; Dobre, O.A.; Kwak, K. Performance analysis of cooperative NOMA schemes in spatially random relaying networks. IEEE Wirel. Commun. 2018, 25, 40–47. [Google Scholar] [CrossRef]
- Islam, S.M.R.; Avazov, N.; Dobre, O.A.; Kwak, K.-S. Power-Domain Non-Orthogonal Multiple Access (NOMA) in 5G Systems: Potentials and Challenges. IEEE Commun. Surv. Tutor. 2017, 19, 721–742. [Google Scholar] [CrossRef]
- Wan, D.; Wen, M.; Ji, F.; Yu, H.; Chen, F. Non-Orthogonal Multiple Access for Cooperative Communications: Challenges, Opportunities, and Trends. IEEE Wirel. Commun. 2018, 25, 109–117. [Google Scholar] [CrossRef]
- Ding, Z.; Liu, Y.; Choi, J.; Sun, Q.; Elkashlan, M.; Poor, H.V. Application of non-orthogonal multiple access in LTE and 5G networks. IEEE Commun. Mag. Technol. 2017, 55, 185–191. [Google Scholar] [CrossRef]
- Do, D.-T.; Nguyen, H.-S.; Voznak, M.; Nguyen, T.-S. Wireless powered relaying networks under imperfect channel state information: System performance and optimal policy for instantaneous rate. Radioengineering 2017, 26, 869–877. [Google Scholar] [CrossRef]
- Nguyen, X.-X.; Do, D.-T. Optimal power allocation and throughput performance of full-duplex DF relaying networks with wireless power transfer-aware channel. EURASIP J. Wirel. Commun. Netw. 2017, 2017, 152. [Google Scholar] [CrossRef]
- Nguyen, X.-X.; Do, D.-T. Maximum Harvested Energy Policy in Full-Duplex Relaying Networks with SWIPT. Int. J. Commun. Syst. 2017, 30, e3359. [Google Scholar] [CrossRef]
- Nguyen, K.-T.; Do, D.; Nguyen, X.-X.; Nguyen, N.-T.; Ha, D.-H. Wireless information and power transfer for full duplex relaying networks: Performance analysis. In Recent Advances in Electrical Engineering and Related Sciences (AETA 2015); Springer: Berlin/Heidelberg, Germany, 2015; pp. 53–62. [Google Scholar]
- Zhang, Z.; Ma, Z.; Xiao, M.; Ding, Z.; Fan, P. Full-duplex device-to-device aided cooperative non-orthogonal multiple access. IEEE Trans. Veh. Technol. 2017, 66, 4467–4471. [Google Scholar] [CrossRef]
- Liu, H.; Ding, Z.; Kim, K.J.; Kwak, K.S.; Poor, H.V. Decode-and-Forward Relaying for Cooperative NOMA Systems With Direct Links. IEEE Trans. Wirel. Commun. 2018, 17, 8077–8093. [Google Scholar] [CrossRef]
- Nguyen, T.-L.; Do, D.-T. Exploiting Impacts of Intercell Interference on SWIPT-assisted Non-orthogonal Multiple Access. Wirel. Commun. Mobile Comput. 2018, 2018, 2525492. [Google Scholar] [CrossRef]
- Do, D.-T.; Nguyen Van, M.-S.; Hoang, T.-A.; Voznak, M. NOMA-Assisted Multiple Access Scheme for IoT Deployment: Relay Selection Model and Secrecy Performance Improvement. Sensors 2019, 19, 736. [Google Scholar] [CrossRef]
- Kader, M.F.; Uddin, M.B.; Islam, S.M.R.; Shin, S.Y. Capacity and outage analysis of a dual-hop decode-and-forward relay-aided NOMA scheme. Dig. Signal Process. 2019, 88, 138–148. [Google Scholar] [CrossRef]
- Deng, D.; Fan, L.; Lei, X.; Tan, W.; Xie, D. Joint user and relay selection for cooperative NOMA networks. IEEE Access 2017, 5, 20220–20227. [Google Scholar] [CrossRef]
- Han, T.; Gong, J.; Liu, X.; Islam, S.M.R.; Li, Q.; Bai, Z.; Kwak, K.S. On Downlink NOMA in Heterogeneous Networks with Non-Uniform Small Cell Deployment. IEEE Access 2018, 6, 31099–31109. [Google Scholar] [CrossRef]
- Liu, Y.; Qin, Z.; Elkashlan, M.; Gao, Y.; Hanzo, L. Enhancing the physical layer security of non-orthogonal multiple access in large-scale networks. IEEE Trans. Wirel. Commun. 2017, 16, 1656–1672. [Google Scholar] [CrossRef]
- Do, D.-T.; Le, C. Application of NOMA in Wireless System with Wireless Power Transfer Scheme: Outage and Ergodic Capacity Performance Analysis. Sensors 2018, 18, 3501. [Google Scholar] [CrossRef]
- Nguyen, T.; Do, D. Power Allocation Schemes for Wireless Powered NOMA Systems with Imperfect CSI: System model and performance analysis. Int. J. Commun. Syst. 2018, 31, e3789. [Google Scholar] [CrossRef]
- Zaidi, S.K.; Hasan, S.F.; Gui, X. Evaluating the Ergodic Rate in SWIPT-Aided Hybrid NOMA. IEEE Commun. Lett. 2018, 22, 1870–1873. [Google Scholar] [CrossRef]
- Pei, L.; Yang, Z.; Pan, C.; Huang, W.; Chen, M.; Elkashlan, M.; Nallanathan, A. Energy-Efficient D2D Communications Underlaying NOMA-Based Networks With Energy Harvesting. IEEE Commun. Lett. 2018, 22, 914–917. [Google Scholar] [CrossRef]
- Wang, Y.; Wu, Y.; Zhou, F.; Chu, Z.; Wu, Y.; Yuan, F. Multi-Objective Resource Allocation in a NOMA Cognitive Radio Network With a Practical Non-Linear Energy Harvesting Model. IEEE Trans. Commun. 2017, 65, 1077–1091. [Google Scholar] [CrossRef]
- Hedayati, M.; Kim, I. On the Performance of NOMA in the Two-User SWIPT System. IEEE Trans. Veh. Technol. 2018, 67, 11258–11263. [Google Scholar] [CrossRef]
- Ding, Z.; Adachi, F.; Poor, H.V. The application of MIMO to non-orthogonal multiple access. IEEE Trans. Wirel. Commun. 2016, 15, 537–552. [Google Scholar] [CrossRef]
- Al-Abbasi, Z.Q.; So, D.K.C.; Tang, J. Resource allocation for MU-MIMO non-orthogonal multiple access (NOMA) system with interference alignment. In Proceedings of the 2017 IEEE International Conference on Communications (ICC), Paris, France, 21–25 May 2017; pp. 1–6. [Google Scholar]
- Wang, H.; Zhang, R.; Song, R.; Leung, S.H. A novel power minimization precoding scheme for MIMO-NOMA uplink systems. IEEE Commun. Lett. 2018, 22, 1106–1109. [Google Scholar] [CrossRef]
- Ding, Z.; Schober, R.; Poor, H.V. A general MIMO framework for NOMA downlink and uplink transmission based on signal alignment. IEEE Trans. Wirel. Commun. 2016, 15, 4438–4454. [Google Scholar] [CrossRef]
- Chen, Z.; Ding, Z.; Dai, X.; Karagiannidis, G.K. On the Application of Quasi-Degradation to MISO-NOMA Downlink. IEEE Trans. Signal Process. 2016, 64, 6174–6189. [Google Scholar] [CrossRef]
- Chen, X.; Zhang, Z.; Zhong, C.; Ng, D.W.K. Exploiting MultipleAntenna Techniques for Non-Orthogonal Multiple Access. IEEE J. Sel. Areas Commun. 2017, 35, 2207–2220. [Google Scholar] [CrossRef]
- Zhang, X.; Chen, F.; Wang, W. Outage Probability Study of Multiuser Diversity in MIMO Transmit Antenna Selection Systems. IEEE Signal Process Lett. 2007, 14, 161–164. [Google Scholar] [CrossRef]
- Lei, L.; Yuan, D.; Ho, C.K.; Sun, S. Power and Channel Allocation for Non-Orthogonal Multiple Access in 5G Systems: Tractability and Computation. IEEE Trans. Wirel. Commun. 2016, 15, 8580–8594. [Google Scholar] [CrossRef]
- Wei, Z.; Ng, D.W.K.; Yuan, J.; Wang, H.M. Optimal Resource Allocation for Power-Efficient MC-NOMA with Imperfect Channel State Information. IEEE Trans. Commun. 2017, 65, 3944–3961. [Google Scholar] [CrossRef]
- Sun, Y.; Ng, D.W.K.; Ding, Z.; Schober, R. Optimal Joint Power and Subcarrier Allocation for MC-NOMA Systems. In Proceedings of the 2016 IEEE Global Communications Conference (GLOBECOM), Washington, DC, USA, 4–8 December 2016; pp. 1–6. [Google Scholar]
- Cui, J.; Ding, Z.; Fan, P. Outage Probability Constrained MIMO-NOMA Designs Under Imperfect CSI. IEEE Trans. Wirel. Commun. 2018, 17, 8239–8255. [Google Scholar] [CrossRef]
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Le, C.-B.; Do, D.-T.; Voznak, M. Wireless-Powered Cooperative MIMO NOMA Networks: Design and Performance Improvement for Cell-Edge Users. Electronics 2019, 8, 328. https://doi.org/10.3390/electronics8030328
Le C-B, Do D-T, Voznak M. Wireless-Powered Cooperative MIMO NOMA Networks: Design and Performance Improvement for Cell-Edge Users. Electronics. 2019; 8(3):328. https://doi.org/10.3390/electronics8030328
Chicago/Turabian StyleLe, Chi-Bao, Dinh-Thuan Do, and Miroslav Voznak. 2019. "Wireless-Powered Cooperative MIMO NOMA Networks: Design and Performance Improvement for Cell-Edge Users" Electronics 8, no. 3: 328. https://doi.org/10.3390/electronics8030328