An Energy-Efficient Approach Towards Power Allocation in Non-Orthogonal Multiple Access Full-Duplex AF Relay Systems

Ankit Gupta, Sudip Biswas, Keshav Singh, Tharmalingam Ratnarajah, Mathini Sellathurai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

An optimization problem for non-orthogonal multiple access full-duplex (FD) amplify-and-forward relay system is formulated to maximize the system energy efficiency, subject to a total transmit power. By introducing a variable transformation, the original non-convex fractional problem is transformed into a tractable one via successive convex approximation approach and Dinkelbach's method. Further, the near-optimal solution is obtained through Lagrangian dual decomposition. Numerical results show that the proposed algorithm in FD mode significantly outperforms conventional orthogonal multiple access and sum rate maximization schemes.
Original languageEnglish
Title of host publication2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Electronic)978-1-5386-3512-4
DOIs
Publication statusPublished - 27 Aug 2018

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