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- W4313153171 abstract "In this work, we present a time efficient solution to the initial beam alignment/acquisition of a hybrid beamforming millimeter wave communication system. Our proposal is based on adding a frequency dependent beamforming device at the transmitter which is capable of simultaneously testing all spatial angles and, therefore, any set of possible beamformers from an analog codebook. Such a device employed outperforms any kind of consecutive beamformer testing, e.g., exhaustive search, in terms of testing overhead and receive power loss after beamforming. To further increase the time efficiency, a variable length testing technique in combination with the frequency dependent beamformer is described, which is adaptive to any signal to noise ratio or varying channel condition. Especially in the low signal to noise ratio regime, an overall speed-up can be achieved. The described radar-like solution to the initial beam alignment problem may act as an enabler for mmWave communication in fast-varying and challenging environments." @default.
- W4313153171 created "2023-01-06" @default.
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- W4313153171 date "2022-10-11" @default.
- W4313153171 modified "2023-10-16" @default.
- W4313153171 title "Fast Beam Alignment Via True Time Delay Frequency Dependent Beamforming Using Fixed and Variable Length Tests" @default.
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- W4313153171 doi "https://doi.org/10.1109/past49659.2022.9975036" @default.
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