New Efficient Energy-Saving Techniques for Resource Allocation in Downlink OFDMA Transmission Systems

Joumana Farah (1) , Elie Sfeir (1) , Charbel Abdel Nour (2, 3, 4) , Catherine Douillard (2, 3, 4)

1 ULFG2 - Faculté de Génie en électricité et électronique, Branche 2 (Université Libanaise)
2 Lab-STICC_IMTA_CACS_IAS
3 IMT Atlantique - ELEC - Département Electronique
4 Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance

This paper considers the problem of Base Station power minimization in downlink Orthogonal Frequency Division Multiple Access (OFDMA) systems. It aims at providing new solutions for the reduction of the total energy consumption. Such solutions rely on joint subcarrier and power allocation, under the constraints of requested per-user data rate. Practical results show that the proposed techniques allow a significant decrease of transmission power with an affordable complexity, compared to well-referenced methods from the literature.

Mots clés: OFDMA; Index Terms-OFDMA; power allocation; power reduction; subcarrier assignment; waterfilling

Domaines: Théorie de l'information [cs.IT]; Electronique; Traitement du signal et de l'image [eess.SP]

Joumana Farah, Elie Sfeir, Charbel Abdel Nour, Catherine Douillard. New Efficient Energy-Saving Techniques for Resource Allocation in Downlink OFDMA Transmission Systems. ISCC 2017 : The 22nd IEEE Symposium on Computers and Communications, Jul 2017, Crete, Greece. pp.1056 - 1062, ⟨10.1109/ISCC.2017.8024665⟩. ⟨hal-01617338⟩