LTE In Industry
LteSuite can be used as part of your design and verification workflow of PHY/MAC subsystems for LTE. You can accelerate your development and identify potential design mistakes early on in the development process avoiding last-minute hold-ups.Some typical uses of the LteSuite software include:
- Generation of LTE-compliant waveforms
- Development/testing of PHY-layer algorithms
- PAPR reduction
- Channel estimation
- MIMO transmission / detection
- Development/testing of MAC-layer algorithms
- Multi-user scheduling
- Link-adaptation
Use case: Development of a custom scheduling algorithm
The scheduling process in LTE is not restricted by the 3GPP standards in order to promote competition between products from different vendors. LteSystem is the ideal simulation platform for the development and testing of scheduling algorithms since it provides:- LTE-compliant downlink transmission chain
- LTE-compliant channel information feedback mechanism
- Sophisticated MIMO channel modelling capabilities
The figure below demonstrates the allocation of time-frequency resources to multiple users (shown with different colours) corresponding to three basic scheduling algorithms supplied with LteSystem.
It is clear that the different allocation approaches will have a significant impact on the system-level performance but also on the QoS experienced by the users.
Release-1 of LteSystem supports channel-aware scheduling for maximising the performance of the scheduling process. Release-2 supports a full L2 implementation which enables cross-layer QoS-aware scheduling.
LteSuite is a powerful simulation tool for use on the research and teaching of OFDMA-based communication systems such as 3GPP – LTE. It offers invaluable insight on the MIMO-OFDMA transmission chain and the impact of specific procedures on the overall link-level and system-level performance.
Research with LteSuite
Using LteSuite as part of the research workflow allows you to spend more time and effort on actual research than on the simulation platform itself. The modular implementation of the LteLink and LteSystem toolboxes for MATLAB enables the straightforward integration of user-designed algorithms and their effortless comparison with the performance of conventional PHY and MAC-layer algorithms.Use case: Research on the effect of user velocity on cell-throughput
The figure below corresponds to a study performed with the LteSystem Toolbox for MATLAB. The cell-throughput of an LTE system is depicted as a function of the users’ speed for the 4 reporting modes in LTE (Wideband, UE-Selected Periodic/Aperiodic and Higher-Layer selected).
Further investigation on the above scenario could lead to an algorithm for adapting the reporting mode used according to a user’s speed.
Teaching with LteSuite
The efficient design and meaningful graphical output of LteSuite makes it a priceless tool in helping students visualize complex PHY or MAC-layer processes such as:- Channel coding
- Modulation
- MIMO precoding
- MIMO propagation
- Channel-estimation
- MIMO detection
- Link-adaptation
- Multi-user scheduling
Use case: Demonstration of the effect of frequency-selective fading
The figures below are generated with LteWave and demonstrate the effect of a frequency-selective channel on a 16-QAM modulated signal.
Frequency response and constellation-diagram for a flat-response channel
Frequency response and constellation-diagram for a frequency-selective channel
The effect of the frequency-selective channel on the signal can be visualised by the students and the effect of noise can be easily distinguished from the effect of frequency fading (both signals have the same average SNR = 30 dB).
Significant discounts are available for eligible institutions. For more details please contact us on
info at antcor dot com
