Time-Frequency Warped Waveforms for Well-Contained Massive Machine Type Communications

This paper proposes a novel time-frequency warped waveform for short symbols, massive machine-type communication (mMTC), and internet of things (IoT) applications. The is composed asymmetric raised cosine (RC) pulses to increase the signal containment in time frequency domains. has low power tails domain, hence better performance presence delay spread offsets. time-axis warping unitary transform applied control occupancy space compensate usage high roll-off factor at symbol edges. explains step-by-step analysis determining factors profile functions. Gains are presented over conventional Zero-tail Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing (ZT-DFT-s-OFDM), Cyclic prefix (CP) DFT-s-OFDM schemes simulations section.