A Hybrid Uplink Multiple Access Method Based on NOMA and SDMA - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue IEEE Access Année : 2023

A Hybrid Uplink Multiple Access Method Based on NOMA and SDMA

Résumé

We introduce a hybrid uplink multiple access method with a multi-antenna base station (BS) and two naive single-antenna users. Both users with no channel state information (CSI) have low computational power and simultaneously transmit their information to the receiver on the same frequency band. The CSI is assumed to be available only at the receive side. Both perfect and imperfect CSI scenarios are inspected. The decoding process at the BS relies on an adaptive combination of two eminent multiple access techniques, namely power-domain non-orthogonal multiple access and space-division multiple access. In order to reap the advantages of both approaches, the hybrid algorithm attentively switches between two multiple access methods depending on the transmit power and channels of the users. It is shown that a considerable reduction in the transmit power of the users can be attained in terms of sum rate and outage probability criteria, which are suitable performance metrics when the transmitters are not provided with any form of CSI. In addition, the investigated techniques are statistically analyzed by deriving novel and original analytical expressions for all the considered schemes.
Fichier principal
Vignette du fichier
OZYURT_2023_A_Hybrid_Uplink_Multiple_Access_Method_Based_on_NOMA_and_SDMA.pdf (4.53 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Licence : CC BY NC ND - Paternité - Pas d'utilisation commerciale - Pas de modification

Dates et versions

hal-04195258 , version 1 (04-09-2023)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Serdar Özyurt, Eric Pierre Simon, Murat Torlak. A Hybrid Uplink Multiple Access Method Based on NOMA and SDMA. IEEE Access, 2023, 11, pp.89265-89276. ⟨10.1109/ACCESS.2023.3305959⟩. ⟨hal-04195258⟩
10 Consultations
11 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More