The Roman army was one of the fiercest armies ever assembled. It was disciplined, well trained, and well equipped. This combination meant the Roman army played a crucial role in Rome’s expansion from ...

Abstract: The decimation-in-time (DIT) fast Fourier transform (FFT) very often has advantage over the decimation-in-frequency (DIF) FFT for most real-valued applications, like speech/image/video ...

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Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...