التفاصيل البيبلوغرافية
| العنوان: |
Energy Efficient Beamforming Design for MISO Non-Orthogonal Multiple Access Systems. |
| المؤلفون: |
Al-Obiedollah, Haitham Moffaqq, Cumanan, Kanapathippillai, Thiyagalingam, Jeyarajan, Burr, Alister G., Ding, Zhiguo, Dobre, Octavia A. |
| المصدر: |
IEEE Transactions on Communications; Jun2019, Vol. 67 Issue 6, p4117-4131, 15p |
| مصطلحات موضوعية: |
BEAMFORMING, MULTIUSER computer systems, ENERGY consumption, MULTIPLE access protocols (Computer network protocols), SIGNAL processing, APPROXIMATION algorithms |
| مستخلص: |
When considering the future generation wireless networks, non-orthogonal multiple access (NOMA) represents a viable multiple access technique for improving the spectral efficiency. The basic performance of the NOMA is often enhanced using downlink beamforming and power allocation techniques. Although downlink beamforming has been previously studied with different performance criteria, such as sum-rate and max–min rate, it has not been studied in the multiuser, multiple-input single-output (MISO) case, particularly with the energy efficiency criteria. In this paper, we investigate the design of an energy efficient beamforming technique for downlink transmission in the context of a multiuser MISO-NOMA system. In particular, this beamforming design is formulated as a global energy efficiency (GEE) maximization problem with minimum user rate requirements and transmit power constraints. By using the sequential convex approximation technique and the Dinkelbach’s algorithm to handle the non-convex nature of the GEE-Max problem, we propose two novel algorithms for solving the downlink beamforming problem for the MISO-NOMA system. Our evaluation of the proposed algorithms shows that they offer similar optimal designs and are effective in offering substantial energy efficiencies compared with the designs based on conventional methods. [ABSTRACT FROM AUTHOR] |
|
Copyright of IEEE Transactions on Communications is the property of IEEE and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder