Low-Overhead Iterative Channel Parameter Estimation for Multi-User OAM Wireless Backhaul Article Swipe
Wen-Xuan Long
,
Nian Li
,
Yuan Liu
,
Mallikarjun Shankar
,
Rui Chen
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1109/tbc.2024.3434676
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1109/tbc.2024.3434676
This paper considers the issue of acquiring channel state information (CSI) for multi-user orbital angular momentum (MU-OAM) wireless backhaul between the macro base station (MBS) and small base stations (SBSs) within broadcasting networks. Unlike prior works, we assume that each SBS transmits a pilot signal of length one on each multiplexed OAM mode and subcarrier, resulting in the coherent observations collected at the MBS. Then, we construct the data sets using the coherent observations, the components of which independently contain arbitrarily assumed positional information. The amplitude-phase multiple signal classification (AP-MUSIC) algorithm, a novel variant of the MUSIC, then conducts a two-dimensional (2-D) search on the amplitude and phase of the data component in both the OAM mode and frequency domains for estimating positions at each iteration. These estimates, together with the observations, are used to iteratively update the data sets, ultimately refining the distances and AoAs of all SBSs. The theoretical analysis and simulation results indicate that this solution not only yields the precise CSI for the MU-OAM system, but also markedly reduces the training overhead, compared to existing alternatives.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1109/tbc.2024.3434676
- OA Status
- green
- Cited By
- 2
- References
- 14
- Related Works
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- OpenAlex ID
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All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W4401211401Canonical identifier for this work in OpenAlex
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https://doi.org/10.1109/tbc.2024.3434676Digital Object Identifier
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Low-Overhead Iterative Channel Parameter Estimation for Multi-User OAM Wireless BackhaulWork title
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-08-01Full publication date if available
- Authors
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Wen-Xuan Long, Nian Li, Yuan Liu, Mallikarjun Shankar, Rui ChenList of authors in order
- Landing page
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https://doi.org/10.1109/tbc.2024.3434676Publisher landing page
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YesWhether a free full text is available
- OA status
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greenOpen access status per OpenAlex
- OA URL
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https://orbilu.uni.lu/handle/10993/62402Direct OA link when available
- Concepts
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Backhaul (telecommunications), Computer science, Wireless, Computer network, Channel (broadcasting), Overhead (engineering), Electronic engineering, Telecommunications, Engineering, Operating systemTop concepts (fields/topics) attached by OpenAlex
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2Total citation count in OpenAlex
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2025: 1, 2024: 1Per-year citation counts (last 5 years)
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14Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.two-dimensional | 100 |
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| cited_by_percentile_year.min | 90 |
| countries_distinct_count | 3 |
| institutions_distinct_count | 5 |
| sustainable_development_goals[0].id | https://metadata.un.org/sdg/7 |
| sustainable_development_goals[0].score | 0.7099999785423279 |
| sustainable_development_goals[0].display_name | Affordable and clean energy |
| citation_normalized_percentile.value | 0.67770687 |
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| citation_normalized_percentile.is_in_top_10_percent | False |