Outage Analysis of TAS-NOMA Systems With Multi-Antenna Users Over α-μ Fading

Fuente: arXiv
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Auteurs principaux: García, Fernando D. Almeida, Alvarado, Maria C. Luna, Jiménez, Lenin P. Jiménez, Fraidenraich, Gustavo, Yacoub, Michel D., Garzón, Nathaly V. Orozco, Vega-Sánchez, José D., Mora, Henry R. Carvajal
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Publié: 2025
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author García, Fernando D. Almeida
Alvarado, Maria C. Luna
Jiménez, Lenin P. Jiménez
Fraidenraich, Gustavo
Yacoub, Michel D.
Garzón, Nathaly V. Orozco
Vega-Sánchez, José D.
Mora, Henry R. Carvajal
author_facet García, Fernando D. Almeida
Alvarado, Maria C. Luna
Jiménez, Lenin P. Jiménez
Fraidenraich, Gustavo
Yacoub, Michel D.
Garzón, Nathaly V. Orozco
Vega-Sánchez, José D.
Mora, Henry R. Carvajal
contents This paper analyzes the outage performance of downlink NOMA systems with transmit antenna selection (TAS) and multi-antenna users over α-μ fading. Maximal-ratio combining (MRC) and equal-gain combining (EGC) are considered, with imperfect successive interference cancellation (ipSIC) explicitly modeled. Exact closed-form outage probability (OP) expressions and asymptotic results are derived, offering insights into diversity and coding gains. Simulations validate the analysis, showing that TAS improves the far user's performance and that MRC outperforms EGC. The results also quantify the loss from ipSIC, and highlight the impact of power allocation on joint OP. The proposed framework serves as a unified tool for evaluating TAS-NOMA systems under generalized fading, providing design insights for B5G/6G networks.
format Preprint
id arxiv_https___arxiv_org_abs_2512_00609
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Outage Analysis of TAS-NOMA Systems With Multi-Antenna Users Over α-μ Fading
García, Fernando D. Almeida
Alvarado, Maria C. Luna
Jiménez, Lenin P. Jiménez
Fraidenraich, Gustavo
Yacoub, Michel D.
Garzón, Nathaly V. Orozco
Vega-Sánchez, José D.
Mora, Henry R. Carvajal
Signal Processing
This paper analyzes the outage performance of downlink NOMA systems with transmit antenna selection (TAS) and multi-antenna users over α-μ fading. Maximal-ratio combining (MRC) and equal-gain combining (EGC) are considered, with imperfect successive interference cancellation (ipSIC) explicitly modeled. Exact closed-form outage probability (OP) expressions and asymptotic results are derived, offering insights into diversity and coding gains. Simulations validate the analysis, showing that TAS improves the far user's performance and that MRC outperforms EGC. The results also quantify the loss from ipSIC, and highlight the impact of power allocation on joint OP. The proposed framework serves as a unified tool for evaluating TAS-NOMA systems under generalized fading, providing design insights for B5G/6G networks.
title Outage Analysis of TAS-NOMA Systems With Multi-Antenna Users Over α-μ Fading
topic Signal Processing
url https://arxiv.org/abs/2512.00609