Labeling-Based Recipient Identification with Low-Order Modulation

Labeling-Based Recipient Identification (LABRID) brings the possibility of representing the destination station address in a Bit-Interleaved Coded Modulation with Iterative Decoding (BICM-ID) system by a signal labeling rule. Low-order modulations, such as BPSK or QPSK, pose a general problem for BI...

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Main Author: Maciej Krasicki
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/13/2/425
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author Maciej Krasicki
author_facet Maciej Krasicki
author_sort Maciej Krasicki
collection DOAJ
description Labeling-Based Recipient Identification (LABRID) brings the possibility of representing the destination station address in a Bit-Interleaved Coded Modulation with Iterative Decoding (BICM-ID) system by a signal labeling rule. Low-order modulations, such as BPSK or QPSK, pose a general problem for BICM-ID due to a limited convergence of iterative decoding. In the context of LABRID, they have one more drawback—a small number of different labeling rules in general; the number of the optimal ones, which exhibit the maximal asymptotic coding gain, is reduced even further. Meanwhile, LABRID needs a sizable collection of different optimal labeling rules to serve many users in large wireless networks. In this paper, the author suggests the use of hypercube BPSK or QPSK labeling to overcome all these challenges. By means of the Reactive Tabu Search (RTS) algorithm, more than 1500 equivalent optimal hypercube labeling rules are found. Analytical error bounds of the system are developed and supported by simulation experiments. Then, the focus is moved to the criterion to determine the frame destination at the LABRID receiver; a simple threshold-based method is proposed to keep the incorrect decision probability below <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mrow><mo>−</mo><mn>5</mn></mrow></msup></semantics></math></inline-formula>. Finally, it is shown that LABRID outperforms a reference BICM-ID system in terms of computational complexity.
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spelling doaj.art-778a7ab0a1584bbd8d3838cfcbb2e8242024-01-26T16:14:55ZengMDPI AGElectronics2079-92922024-01-0113242510.3390/electronics13020425Labeling-Based Recipient Identification with Low-Order ModulationMaciej Krasicki0Institute of Radiocommunications, Poznan University of Technology, Polanka 3, 61-131 Poznan, PolandLabeling-Based Recipient Identification (LABRID) brings the possibility of representing the destination station address in a Bit-Interleaved Coded Modulation with Iterative Decoding (BICM-ID) system by a signal labeling rule. Low-order modulations, such as BPSK or QPSK, pose a general problem for BICM-ID due to a limited convergence of iterative decoding. In the context of LABRID, they have one more drawback—a small number of different labeling rules in general; the number of the optimal ones, which exhibit the maximal asymptotic coding gain, is reduced even further. Meanwhile, LABRID needs a sizable collection of different optimal labeling rules to serve many users in large wireless networks. In this paper, the author suggests the use of hypercube BPSK or QPSK labeling to overcome all these challenges. By means of the Reactive Tabu Search (RTS) algorithm, more than 1500 equivalent optimal hypercube labeling rules are found. Analytical error bounds of the system are developed and supported by simulation experiments. Then, the focus is moved to the criterion to determine the frame destination at the LABRID receiver; a simple threshold-based method is proposed to keep the incorrect decision probability below <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mn>10</mn><mrow><mo>−</mo><mn>5</mn></mrow></msup></semantics></math></inline-formula>. Finally, it is shown that LABRID outperforms a reference BICM-ID system in terms of computational complexity.https://www.mdpi.com/2079-9292/13/2/425coded modulationdiversityiterative decodinglabeling map
spellingShingle Maciej Krasicki
Labeling-Based Recipient Identification with Low-Order Modulation
Electronics
coded modulation
diversity
iterative decoding
labeling map
title Labeling-Based Recipient Identification with Low-Order Modulation
title_full Labeling-Based Recipient Identification with Low-Order Modulation
title_fullStr Labeling-Based Recipient Identification with Low-Order Modulation
title_full_unstemmed Labeling-Based Recipient Identification with Low-Order Modulation
title_short Labeling-Based Recipient Identification with Low-Order Modulation
title_sort labeling based recipient identification with low order modulation
topic coded modulation
diversity
iterative decoding
labeling map
url https://www.mdpi.com/2079-9292/13/2/425
work_keys_str_mv AT maciejkrasicki labelingbasedrecipientidentificationwithlowordermodulation