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Sparse Antenna Array Based Positional Modulation Design With a Low-Complexity Metasurface
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DOI：10.1109/ACCESS.2020.3027285.png)
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Abstract
En 中文
Positional modulation (PM) has been introduced recently where a given modulation pattern can only be received at certain desired positions. To achieve it, the multi-path effect is exploited for positional modulation with the aid of metasurface acting as a low-cost flexible reflecting surface. In this paper, sparse antenna array based positional modulation design is proposed for the first time; to reduce the implementation complexity of the metasurface, the number of active units is also minimised for a given PM design requirement. Design examples are provided to show the effectiveness of the proposed design.
Keywords:
Modulation
Transmitters
Linear antenna arrays
Electromagnetics
Phased arrays
Positional modulation
directional modulation
metasurface
sparse antenna array
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