The 5G library is a free, downloadable add-on for LTE System Toolbox™. It provides functions and link-level reference designs that enable you to explore the behavior and performance of new 3GPP radio technologies. The library allows you to simulate channel models including tapped delay line (TDL) and clustered delay line (CDL) channel models (as specified in 3GPP TR 38.900), and new radio waveforms including candidate algorithms to improve spectral efficiency by limiting out-of-band emissions. These algorithms include: Filtered OFDM (F-OFDM), Windowed OFDM (W-OFDM), and Cyclic Prefix OFDM (CP-OFDM). Link-level simulation reference design enables you to measure the throughput of a 5G link using the provided waveforms and channel models. The 5G library builds on the infrastructure in LTE System Toolbox, so you can easily construct end-to-end simulations and measure the performance impact of different algorithms. You can modify the provided link-level reference design to evaluate your own receiver algorithms and experiment with other proposed 5G technologies.