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arXiv 2005.07900cs.ITmath.IT
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多用户二进制子空间线性调频信号的重构

Reconstruction of Multi-user Binary Subspace Chirps

Tefjol Pllaha, Olav Tirkkonen, Robert Calderbank

摘要:

本文研究了由$N = 2^m$维的二进制子空间线性调频信号(BSSC)组成的复数格拉斯曼线的码本。BSSC是二进制啁啾(BC)的推广,它们的条目是单位的四次方根或零。BSSC由非零子空间中的BC组成,由开-关模式描述。探索潜在的二元辛几何,我们提供了一个统一的框架BSSC重建-开关模式和BC识别相关的稳定子状态的基础Heisenberg-Weyl代数。在多用户随机接入的情况下,我们表现出可靠的重建多个同时发送的BSSC具有低复杂度的可行性。

英文摘要:

We consider codebooks of Complex Grassmannian Lines consisting of Binary Subspace Chirps (BSSCs) in $N = 2^m$ dimensions. BSSCs are generalizations of Binary Chirps (BCs), their entries are either fourth-roots of unity, or zero. BSSCs consist of a BC in a non-zero subspace, described by an on-off pattern. Exploring the underlying binary symplectic geometry, we provide a unified framework for BSSC reconstruction---both on-off pattern and BC identification are related to stabilizer states of the underlying Heisenberg-Weyl algebra. In a multi-user random access scenario we show feasibility of reliable reconstruction of multiple simultaneously transmitted BSSCs with low complexity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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