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Erschienen in: Photonic Network Communications 1/2021

15.06.2021 | Original Paper

Projected block-wise SIC detection for communication systems with non-negativity constraints

verfasst von: Abdelouahab Bentrcia

Erschienen in: Photonic Network Communications | Ausgabe 1/2021

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Abstract

Recently, a number of projected successive interference cancellation (PSIC) and projected parallel interference cancellation (PPIC) structures, which make use of the non-negativity constraint in incoherent OCDMA systems to enhance their performance, have been proposed and studied in (Seleem et al. in IEEE Commun Lett 16:1721–1724, 2012). Although these structures showed improved performance, they still inherit the same shortcomings of the conventional SIC/PIC structures such as large detection delay for the SIC detector and slow convergence speed for the PIC detector. In this work, we propose a new projected block-wise SIC (PBSIC) structure that not only exploits the non-negativity constraint but also overcomes the drawbacks associated with the conventional SIC/PIC structures. In particular, it largely reduces the detection delay of the PSIC detector of (Seleem et al. in IEEE Commun Lett 16:1721–1724, 2012), while it enjoys the same fast convergence speed. Two approaches for decreasing the computational complexity of the proposed detector are investigated. Simulation results are in total agreement with our theoretical findings.

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Fußnoten
1
A flop stands for floating point operation. Operations such as addition, multiplication, subtraction, division and compare are considered as one flop.
 
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Metadaten
Titel
Projected block-wise SIC detection for communication systems with non-negativity constraints
verfasst von
Abdelouahab Bentrcia
Publikationsdatum
15.06.2021
Verlag
Springer US
Erschienen in
Photonic Network Communications / Ausgabe 1/2021
Print ISSN: 1387-974X
Elektronische ISSN: 1572-8188
DOI
https://doi.org/10.1007/s11107-021-00942-y

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