NR V2X SL Link-Level repository

On this webpage, you can find the largest existing dataset of NR V2X Sidelink (SL) link-level results.
The dataset consists of 6188 Block Error Rate (BLER) vs Signal-to-Noise Ratio (SNR) curves obtained with a custom MATLAB-based link-level simulator (openly available on UWICORE's GitHub repository) and covers all the possible combinations of channel models, Tx-Rx relative speed values, number of subchannels, and DMRS patterns identified by the latest version of the default NR V2X SL parameters set defined by 3GPP [1] and ETSI [2]. The default NR V2X SL parameters set is reported in Table 1.

The NR V2X SL link-level dataset is openly available can be downloaded as a compressed archive (.zip) by clicking on this link.
If you use this dataset, please acknowledge our work by citing this paper.
For any enquiries about the dataset or to report any issues, please contact Luca Lusvarghi (llusvarghi@umh.es) and Baldomero Coll-Perales (bcoll@umh.es).

The link-level dataset is structured to facilitate the identification of the link-level results corresponding to a specific NR V2X SL configuration. The structure of the dataset is illustrated by the following figure:

Each figure (reported in Matlab's .fig format) includes three BLER vs SNR curves which separately capture the PHY layer performance of the TB, 1st-stage SCI, and 2nd-stage SCI transmission. For each BLER vs SNR curve, we also provide the corresponding Look-Up Table (LUT) in csv format.

For example, if we concentrate on the Highway propagation environment, LOS channel model, 0 km/h transmitter-receiver relative speed, 2 subchannels (N_sub = 2), and 3 OFDM symbols DMRS pattern configuration (N_DMRS = 3), then the dataset path to follow in order to find the corresponding BLER vs SNR curve (in both .fig and .csv format) is the following:

Note that the name of each figure reports the configuration of the default NR V2X SL parameters that have been used to generate it. Please also be aware that, according to NR-V2X SL specifications, the configuration with N_sub = 1 supports only the N_DMRS = 2 pattern.

In NR-V2X SL, the maximum TB size that can be transmitted depends on the selected TB MCS, the number of employed subchannels (N_sub), and the selected DMRS pattern (N_DMRS). The maximum TB size corresponding to the different MCS, N_sub and N_DMRS configurations allowed by the NR-V2X SL parameters set is reported in Tables 2, 3, 4, 5, and 6.

¹According to NR-V2X SL specifications, the configuration with N_sub = 1 supports only the N_DMRS = 2 pattern.

Note that BLER vs SNR curves are obtained (and named) varying the MCS employed for encoding the TB. In NR-V2X SL, the 1st-stage SCI MCS is fixed (QPSK-101) and does not depend on the TB MCS. On the other hand, the 2nd-stage SCI is always transmitted using QPSK modulation but has a coding rate that depends on the coding rate of the associated TB.
The mapping between TB and 2nd-stage SCI MCS is reported in Table 7.

References

[1] 3GPP, "TS 37.885; Study on evaluation methodology of new Vehicle-to-Everything (V2X) use cases for LTE and NR (v15.3.0), Release 15," 3GPP, Tech. Rep., June 2019.

[2] ETSI, "LTE-V2X and NR-V2X Access layer specification for Intelligent Transport Systems operating in the 5 GHz frequency band; Release 2," ETSI EN 303 798 V 2.0.1, Oct. 2023.

[3] 3GPP, "TS 38.214 NR; Physical layer procedures for data (v17.9.0, Release 17)," 3GPP Tech. Spec., April 2024.