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Title: A Multi-antenna Iterative Frequency-domain Detection for Power-efficient NOMA Schemes
Authors: Guerreiro, João
Carvalho, Paulo Montezuma
Diniz, Rui
Silva, Mário Marques da
Keywords: Wireless Communications
Efficient Power Amplification
MIMO Systems
Issue Date: 19-Jun-2019
Publisher: Proceedings of 41st Progress in Electromagnetics Research Symposium 2019 (PIERS 2019)
Abstract: The transmitted signals in non-orthogonal multiple access (NOMA) schemes can have substantial envelope °uctuations, not to mention the inherent high interference levels. This means that a high price in terms of power e±ciency can be payed to achieve the substantial ca- pacity gains of NOMA systems. In this paper we consider the use single-carrier signals combined with NOMA schemes in the downlink transmission. We present a multi-antenna transmission technique that is compatible with the use of high-e±ciency power ampli¯ers and does not require any pre-processing and allows the use of power-e±cient ampli¯ers. Moreover, an e±cient detection is achieved using iterative receivers with joint multi-user detection and equalization. Our performance results show that the proposed technique allows high power e±ciency, with bit-error-rate (BER) performance close to the matched ¯lter bound (MFB).
Peer Reviewed: yes
Appears in Collections:DCT - Artigos/Papers

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