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Zenodo
2023
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| Online Access: | https://doi.org/10.1145/3592149.3592167 |
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| _version_ | 1866901215895355392 |
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| author | Pagin M. Lagén S. Bojovic B. Polese M. Zorzi M. |
| author_facet | Pagin M. Lagén S. Bojovic B. Polese M. Zorzi M. |
| contents | Channel modeling is a fundamental task for the design and evaluation of wireless technologies and networks, before actual prototyping, commercial product development and real deployments. The recent trends of current and future mobile networks, which include large antenna systems, massive deployments, and high-frequency bands, require complex channel models for the accurate simulation of massive MIMO (m-MIMO) in millimeter wave (mmWave) and Terahertz (THz) bands. To address the complexity/accuracy trade-off, a spatial channel model has been defined by 3GPP (TR 38.901), which has been shown to be the main bottleneck of current system-level simulations in ns-3. In this paper, we focus on improving the channel modeling efficiency for large-scale MIMO system-level simulations. Extensions are developed in two directions. First, we improve the efficiency of the current 3GPP TR 38.901 implementation code in ns-3, by allowing the use of the Eigen library for more efficient matrix algebra operations, among other optimizations and a more modular code structure. Second, we propose a new performance-oriented MIMO channel model for reduced complexity, as an alternative model suitable for mmWave/THz bands, and calibrate it against the 3GPP TR 38.901 model. Simulation results demonstrate the proper calibration of the newly introduced model for various scenarios and channel conditions, and exhibit an effective reduction of the simulation time (up to 16 times compared to the previous baseline) thanks to the various proposed improvements. © 2023 ACM. |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_1145_3592149_3592167 |
| institution | Zenodo |
| language | |
| publishDate | 2023 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Improving the Efficiency of MIMO Simulations in ns-3 Pagin M. Lagén S. Bojovic B. Polese M. Zorzi M. Antennas Codes (symbols) Complex networks Economic and social effects Efficiency Matrix algebra Millimeter waves Mobile telecommunication systems Product design Terahertz waves Wireless networks 'current Channel modelling Commercial products Design and evaluations Network simulation Ns-3 System level simulation Tera Hertz Terahertz band Wireless technologies MIMO systems Channel modeling is a fundamental task for the design and evaluation of wireless technologies and networks, before actual prototyping, commercial product development and real deployments. The recent trends of current and future mobile networks, which include large antenna systems, massive deployments, and high-frequency bands, require complex channel models for the accurate simulation of massive MIMO (m-MIMO) in millimeter wave (mmWave) and Terahertz (THz) bands. To address the complexity/accuracy trade-off, a spatial channel model has been defined by 3GPP (TR 38.901), which has been shown to be the main bottleneck of current system-level simulations in ns-3. In this paper, we focus on improving the channel modeling efficiency for large-scale MIMO system-level simulations. Extensions are developed in two directions. First, we improve the efficiency of the current 3GPP TR 38.901 implementation code in ns-3, by allowing the use of the Eigen library for more efficient matrix algebra operations, among other optimizations and a more modular code structure. Second, we propose a new performance-oriented MIMO channel model for reduced complexity, as an alternative model suitable for mmWave/THz bands, and calibrate it against the 3GPP TR 38.901 model. Simulation results demonstrate the proper calibration of the newly introduced model for various scenarios and channel conditions, and exhibit an effective reduction of the simulation time (up to 16 times compared to the previous baseline) thanks to the various proposed improvements. © 2023 ACM. |
| title | Improving the Efficiency of MIMO Simulations in ns-3 |
| topic | Antennas Codes (symbols) Complex networks Economic and social effects Efficiency Matrix algebra Millimeter waves Mobile telecommunication systems Product design Terahertz waves Wireless networks 'current Channel modelling Commercial products Design and evaluations Network simulation Ns-3 System level simulation Tera Hertz Terahertz band Wireless technologies MIMO systems |
| url | https://doi.org/10.1145/3592149.3592167 |