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Wireless Personal Communications
Erschienen in: Wireless Personal Communications 3/2018

28.07.2018

GPU Accelerated Successive Interference Cancellation for NOMA Uplink with User Clustering

verfasst von: Talgat Manglayev, Refik Caglar Kizilirmak, Yau Hee Kho, Nor Asilah Wati Abdul Hamid

Erschienen in: Wireless Personal Communications | Ausgabe 3/2018

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Abstract

Non-orthogonal multiple access (NOMA) can achieve high throughput by using the same time and frequency resources for multiple users. NOMA distinguishes multiple users in power domain by computationally-heavy successive interference cancellation (SIC) method. Recently, outsourcing baseband computations to graphics processing units (GPUs) have become an attractive solution for some wireless communication applications, particularly for the ones include parallel processing. Although SIC is a sequential operation, when user clustering is deployed, multiple SIC operations are required and GPU based computation becomes a natural solution to alleviate the high computation demand of SIC receivers. In this work, we implemented GPU based SIC implementation for uplink NOMA systems with user clustering and our results reveal a significant speedup when compared to that of using central processing unit based computations.
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Nächster Artikel Correction to: GPU Accelerated Successive Interference Cancellation for NOMA Uplink with User Clustering

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Fußnoten
1
NOMA can be implemented in code domain such as in code division multiple access (CDMA) systems. In this work, NOMA refers to power domain NOMA.
 
2
In some uplink NOMA systems, transmit powers of the UEs are kept the same for all UEs relying on the distinction between channel gains for different UEs. From computation perspective, either with or without power control, SIC receiver will do the same computations.
 
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Metadaten
Titel
GPU Accelerated Successive Interference Cancellation for NOMA Uplink with User Clustering
verfasst von
Talgat Manglayev
Refik Caglar Kizilirmak
Yau Hee Kho
Nor Asilah Wati Abdul Hamid
Publikationsdatum
28.07.2018
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 3/2018
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-018-5915-y

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