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"Gyre precoding and t-transformation-based gfdm system for uav-aided mm" by Joarder Jafor Sadique, Shaikh Enayet Ullah et al.

In this paper, an unmanned aerial vehicle (UAV)-aided multi-antenna configured downlink mmWave cooperative generalized frequency division multiplexing (GFDM) system is proposed. To provide physical layer security (PLS), a 3D controlled Lorenz mapping system is introduced. Further-more, the combination of T-transformation spreading codes, walsh Hadamard transform, and discrete Fourier transform (DFT) techniques are integrated with a novel linear multi-user multiple-input multiple-output (MU-MIMO) gyre precoding (GP) for multi-user interference reduction. Furthermore, concatenated channel-coding with multi-user beamforming weighting-aided maximum-likelihood and zero forcing (ZF) signal detection schemes for an improved bit error rate (BER) are also used. The system is then simulated with a single base station (BS), eight massive machine-type communications (mMTC) users, and two UAV relay stations (RSs). Numerical results reveal the robustness of the proposed system in terms of PLS and an ....

Cooperative Unmanned Aerial Vehicle , Eneralized Frequency Division Multiplexing , Yre Precoding , Massive Machine Type Communication , Out Of Band , Hysical Layer Security , Signal To Interference Plus Noise Ratio , T Transformation Spreading Codes ,

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