Abstract: A communication-based train control (CBTC) system is an automated train control system that uses bidirectional train-ground communications to ensure the safe operation of rail vehicles. CBTC ...

Abstract: In this paper, we analyze the outage performance of a rate-splitting multiple access (RSMA)-aided semi-grant-free (SGF) transmission system, in which a grant-based user (GBU) and multiple ...

Rebuilding a dead supercar is hard, but rebuilding one the manufacturer won’t support is worse. Part 3 shows how extreme the challenge became. The money, the stress, and the risks kept stacking up.

This luxury car was completely wrecked, and rebuilding it seemed impossible. Thousands were already spent just trying to bring it back. Then something unexpected happened, the company behind the car ...

Poor reliability is a car problem that isn't as prevalent as it used to be. Automatic transmissions were among the worst offenders, with some going from smoothly shifting between gears while ...