LTE Basics and MATLAB Code Resources

This section introduces the basics of LTE and provides links to LTE MATLAB code. LTE (Long-Term Evolution) is the most recent in the 3GPP series of cellular wireless communication standards.

LTE Components

LTE networks consist of two main components:

• eNodeB: This is the evolved NodeB, functionally equivalent to a base station in earlier cellular technologies.
• UE: This stands for User Equipment, which refers to the mobile device or phone.

Downlink and Uplink

As with other cellular standards, LTE uses the concepts of downlink and uplink for communication:

• Downlink: Refers to the transmission of data from the eNodeB to the UE.
• Uplink: Refers to the transmission of data from the UE to the eNodeB.

Modulation Techniques

LTE employs different modulation techniques for downlink and uplink transmissions:

• OFDMA (Orthogonal Frequency Division Multiple Access): Used in the downlink.
• SC-FDMA (Single-Carrier Frequency-Division Multiple Access): Used in the uplink.

LTE MATLAB Code from Vienna University of Technology

The Vienna University of Technology has developed very useful MATLAB code for LTE simulations. You can find links to download the following simulators:

• Downlink link-level simulator
• Uplink link-level simulator
• Downlink system simulator

Links to LTE Source Code Download

These links will take you to the download pages for the respective simulators:

• https://www.nt.tuwien.ac.at/research/mobile-communications/lte-simulators/
• https://www.nt.tuwien.ac.at/research/mobile-communications/lte-a-downlink-link-level-simulator/
• https://www.nt.tuwien.ac.at/research/mobile-communications/lte-downlink-system-level-simulator/
• https://www.nt.tuwien.ac.at/research/mobile-communications/lte-uplink-link-level-simulator/