Coded Water-Filling for Multi-User Interference Cancellation Article Swipe

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Yuan Li , Zicheng Ye , Huazi Zhang , Jun Wang , Jianglei Ma , Wen Tong ·

YOU? · · 2024 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2410.14136

In this paper, we study the system-level advantages provided by rateless coding, early termination and power allocation strategy for multiple users distributed across multiple cells. In a multi-cell scenario, the early termination of coded transmission not only reduces finite-length loss akin to the single-user scenario but also yields capacity enhancements due to the cancellation of interference across cells. We term this technique \emph{coded water-filling}, a concept that diverges from traditional water-filling by incorporating variable-length rateless coding and interference cancellation. We formulate a series of analytical models to quantify the gains associated with coded water-filling in multi-user scenarios. First, we analyze the capacity gains from interference cancellation in Additive White Gaussian Noise (AWGN) channels, which arises from the disparity in the number of bits transmitted by distinct users. Building upon this, we broaden our analysis to encompass fading channels to show the robustness of the interference cancellation algorithms. Finally, we address the power allocation problem analogous to the water-filling problem under a multi-user framework, proving that an elevation in the water-filling threshold facilitates overall system capacity enhancement. Our analysis reveals the capacity gains achievable through early termination and power allocation techniques in multi-user settings. These results show that coded water-filling is instrumental for further improving spectral efficiency in crowded spectrums.

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Computer Science

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Interference (communication) Computer science Single antenna interference cancellation Telecommunications Decoding methods Channel (broadcasting)

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2410.14136
PDF: https://arxiv.org/pdf/2410.14136
OA Status: green
Related Works: 10
OpenAlex ID: https://openalex.org/W4403995539

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OpenAlex ID: https://openalex.org/W4403995539

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DOI: https://doi.org/10.48550/arxiv.2410.14136

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Title: Coded Water-Filling for Multi-User Interference Cancellation

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Type: preprint

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Language: en

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Publication year: 2024

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Publication date: 2024-10-18

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Authors: Yuan Li, Zicheng Ye, Huazi Zhang, Jun Wang, Jianglei Ma, Wen Tong

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Landing page: https://arxiv.org/abs/2410.14136

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PDF URL: https://arxiv.org/pdf/2410.14136

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Concepts: Interference (communication), Computer science, Single antenna interference cancellation, Telecommunications, Decoding methods, Channel (broadcasting)

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Cited by: 0

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