CPSQDSIM – Site-Specific Channel Model Simulator

Model Overview

CPSQDSIM is a MATLAB-based site-specific quasi-deterministic (QD) channel model simulator developed by the Radio Signal Processing Laboratory at Niigata University. It generates grid-wise multipath component (MPC) datasets — called PathGridData — that describe the propagation channel at each grid point in a target area, enabling spatially-consistent channel simulation for millimeter-wave mobile systems.

The simulator combines deterministic information from ray tracing with site-specific statistical parameters (LSPs and SSPs) measured from field campaigns in Yokohama, enabling accurate reproduction of real-world propagation for 5G/6G mmWave system evaluation.

Simulator Inputs & Outputs

PathGridData Structure

System Framework

CPSQDSIM framework: Ray tracing output and optional user SSP/LSP are fed into the SSP Generator, LSP Generator, and Path Generation Engine to produce grid-wise PathGridData. The Path Generation Engine supports both site-general 3GPP map-based and site-specific CPS QD models.

MATLAB GUI

• Map View
• Path View

Heat map of simulated channel parameters overlaid on street map, with LSP CDF plots and parameter tables.

Path generation view showing delay-angle power spectrum (PDP, APS) for individual grid points.

Citation

If you use CPSQDSIM or the site-specific statistical parameters in your research, please cite the following papers:

@article{tsukada2025millimeter,
  author  = {Tsukada, Hibiki and Suzuki, Naoya and
             Bag, Banibrata and Takahashi, Riku and
             Kim, Minseok},
  title   = {{Millimeter-Wave Urban Cellular Channel
             Characterization and Recipe for
             High-Precision Site-Specific Channel
             Simulation}},
  journal = {IEEE Transactions on Vehicular Technology},
  volume  = {74},
  number  = {3},
  pages   = {3598--3612},
  year    = {2025},
  doi     = {10.1109/TVT.2024.3492719}
}

@article{takada2024cyber,
  author  = {Takada, Jun-ichi and Keerativoranan,
             Nopphon and {Tran Huu}, Binh Minh and
             Nagao, Tatsuya and Hayashi, Takahiro and
             Kim, Minseok and Kishiki, Yukiko and
             Horihata, Kenshi and {Siy Ching}, Gilbert
             and Sugiyama, Kento and Saito, Kentaro and
             Imai, Tetsuro and Hirose, Miyuki and
             Haniz, Azril and Sawada, Hirokazu and
             Matsumura, Takeshi},
  title   = {{Cyber-Physical Wireless Channel
             Emulation}},
  journal = {IEICE Transactions on Communications},
  volume  = {J107-B},
  number  = {11},
  pages   = {531--549},
  year    = {2024},
  note    = {In Japanese}
}

Related Publications

• IEEE TVT 2025
  H. Tsukada, N. Suzuki, B. Bag, R. Takahashi, M. Kim, "Millimeter-Wave Urban Cellular Channel Characterization and Recipe for High-Precision Site-Specific Channel Simulation," IEEE Trans. Veh. Technol., vol. 74, no. 3, pp. 3598–3612, Mar. 2025.
  DOI Link
• IEICE Trans. 2024
  J. Takada, N. Keerativoranan, B. M. Tran Huu, T. Nagao, T. Hayashi, M. Kim, Y. Kishiki, K. Horihata, G. S. Ching, K. Sugiyama, K. Saito, T. Imai, M. Hirose, A. Haniz, H. Sawada, T. Matsumura, "Cyber-Physical Wireless Channel Emulation," IEICE Trans. Commun., vol. J107-B, no. 11, pp. 531–549, Nov. 2024. (in Japanese)