This paper proposes a joint optimization mechanism for packet length and power in the scenario of covert short D2D communication, so as to effectively improve communication performance between pairs subject constraint. Specifically, we construct short-packet model assisted by further propose notion effective throughput (ECT) quantitatively characterize trade-off covertness reliability IoT state...

The recent train accidents [5]–[7] focused much attention on the safety of rail industry sector. It is timely to have an column dedicated current state, as well planned evolution industry, and role played by communication computing technologies for accident-free