The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform
G. Gielen - One of the best experts on this subject based on the ideXlab platform.
-
Dedicated S y s tem-Level Simulation of AX Modulators
2020Co-Authors: K. Francken, M. Vogels, G. GielenAbstract:A new approach is presented for significantly speeding up system-Level Simulation of AX modulators. The method is based on high-Level Simulation that can be com- bined with an acceleration algorithm and has been imple- mented in C. Also, the decimator has been included yielding a complete and fast Simulation of the whole converter. This reduces the bottleneck seen in system-Level Simulation of complete systems, e.g. receiver front-ends. Different topolo- gies are included as well as the effects of most important nonidealities. Experimental results show the effectiveness of the approach.
-
DAISY-CT: a high-Level Simulation tool for continuous-time /spl Delta//spl Sigma/ modulators
Proceedings 2002 Design Automation and Test in Europe Conference and Exhibition, 2002Co-Authors: K. Francken, M. Vogels, E. Martens, G. GielenAbstract:To reduce the long circuit-Level Simulation time of /spl Delta//spl Sigma/ modulators, a variety of techniques and tools exist that use high-Level models for discrete-time (DT) /spl Delta//spl Sigma/ modulators. There is, however, no rigorous methodology implemented in a tool for the continuous-time (CT) counterpart. Therefore, we have developed a methodology for the high-Level Simulation of CT /spl Delta/E modulators and implemented this method in a user-friendly tool. Key features are the Simulation speed, accuracy and extensibility. Nonidealities such as finite gain, finite GBW, output impedance and also the important effect of jitter are modelled. Finally, experiments were carried out using the tool, exploring important design trade-offs.
-
Dedicated system-Level Simulation of /spl Delta//spl Sigma/ modulators
Proceedings of the IEEE 2001 Custom Integrated Circuits Conference (Cat. No.01CH37169), 2001Co-Authors: K. Francken, M. Vogels, G. GielenAbstract:A new approach is presented for significantly speeding up system-Level Simulation of /spl Delta//spl Sigma/ modulators. The method is based on high-Level Simulation that can be combined with an acceleration algorithm and has been implemented in C. Also, the decimator has been included yielding a complete and fast Simulation of the whole converter. This reduces the bottleneck seen in system-Level Simulation of complete systems, e.g. receiver front-ends. Different topologies are included as well as the effects of most important nonidealities. Experimental results show the effectiveness of the approach.
Dacheng Yang - One of the best experts on this subject based on the ideXlab platform.
-
system Level Simulation methodology and platform for mobile cellular systems
IEEE Communications Magazine, 2011Co-Authors: Li Chen, Xin Zhang, Wenwen Chen, Bin Wang, Hongyang Chen, Dacheng YangAbstract:System-Level Simulation has been widely used to evaluate the comprehensive performance of different mobile cellular systems. System-Level Simulation methodologies for different systems have been discussed by different organizations and institutions. However, the framework for a unified Simulation methodology and platform has not been established. In this article, we propose a general unified Simulation methodology for different cellular systems. Both the design of the Simulation structure and the establishment of the Simulation platform are studied. Meanwhile, the unified modeling and the realization of various modules related to the system-Level Simulation are presented. The proposed unified Simulation methodology and the general Simulation platform can be used to evaluate the performance of multiple mobile communication systems fairly. Finally, the overall performance of LTE and Mobile WiMAX systems is evaluated through the proposed framework. The key Simulation results for both Full Buffer and VoIP traffics are presented and discussed. It is shown that the LTE system exhibits better performance than Mobile WiMAX.
-
Study on link-Level Simulation in multi-cell LTE downlink system
2011 4th IEEE International Conference on Broadband Network and Multimedia Technology, 2011Co-Authors: Yang Zhang, Xin Zhang, Dacheng YangAbstract:Simulation of wireless communication system is usually divided into system-Level and link-Level. Link-Level Simulation is generally used to simulate the point-to-point physical layer technologies with propagation model taken into account, which means it is based on single-cell and single terminal scenario. Multi-cell model is not often studied in link-Level mainly due to its high complexity. So we usually consider the impact of Gaussian white noise with fading in link-Level Simulation but ignore the impact of interference from other cells. This paper brings a new perspective of link-Level Simulation for long term evolution (LTE) system under multi-cell scenario. By analyzing downlink interference in multi-cell, we demonstrate the interference power is no longer flat in frequency domain, and the correlation between interference is affected by cell IDs. So we believe that link-Level Simulation under multi-cell is more significant for evaluation of a practical system, especially for its control channel. We take LTE downlink control channel as an example, and propose a new method for link-Level Simulation in multi-cell scenario. The Simulation results confirm our analysis.
K. Francken - One of the best experts on this subject based on the ideXlab platform.
-
Dedicated S y s tem-Level Simulation of AX Modulators
2020Co-Authors: K. Francken, M. Vogels, G. GielenAbstract:A new approach is presented for significantly speeding up system-Level Simulation of AX modulators. The method is based on high-Level Simulation that can be com- bined with an acceleration algorithm and has been imple- mented in C. Also, the decimator has been included yielding a complete and fast Simulation of the whole converter. This reduces the bottleneck seen in system-Level Simulation of complete systems, e.g. receiver front-ends. Different topolo- gies are included as well as the effects of most important nonidealities. Experimental results show the effectiveness of the approach.
-
DAISY-CT: a high-Level Simulation tool for continuous-time /spl Delta//spl Sigma/ modulators
Proceedings 2002 Design Automation and Test in Europe Conference and Exhibition, 2002Co-Authors: K. Francken, M. Vogels, E. Martens, G. GielenAbstract:To reduce the long circuit-Level Simulation time of /spl Delta//spl Sigma/ modulators, a variety of techniques and tools exist that use high-Level models for discrete-time (DT) /spl Delta//spl Sigma/ modulators. There is, however, no rigorous methodology implemented in a tool for the continuous-time (CT) counterpart. Therefore, we have developed a methodology for the high-Level Simulation of CT /spl Delta/E modulators and implemented this method in a user-friendly tool. Key features are the Simulation speed, accuracy and extensibility. Nonidealities such as finite gain, finite GBW, output impedance and also the important effect of jitter are modelled. Finally, experiments were carried out using the tool, exploring important design trade-offs.
-
Dedicated system-Level Simulation of /spl Delta//spl Sigma/ modulators
Proceedings of the IEEE 2001 Custom Integrated Circuits Conference (Cat. No.01CH37169), 2001Co-Authors: K. Francken, M. Vogels, G. GielenAbstract:A new approach is presented for significantly speeding up system-Level Simulation of /spl Delta//spl Sigma/ modulators. The method is based on high-Level Simulation that can be combined with an acceleration algorithm and has been implemented in C. Also, the decimator has been included yielding a complete and fast Simulation of the whole converter. This reduces the bottleneck seen in system-Level Simulation of complete systems, e.g. receiver front-ends. Different topologies are included as well as the effects of most important nonidealities. Experimental results show the effectiveness of the approach.
M. Vogels - One of the best experts on this subject based on the ideXlab platform.
-
Dedicated S y s tem-Level Simulation of AX Modulators
2020Co-Authors: K. Francken, M. Vogels, G. GielenAbstract:A new approach is presented for significantly speeding up system-Level Simulation of AX modulators. The method is based on high-Level Simulation that can be com- bined with an acceleration algorithm and has been imple- mented in C. Also, the decimator has been included yielding a complete and fast Simulation of the whole converter. This reduces the bottleneck seen in system-Level Simulation of complete systems, e.g. receiver front-ends. Different topolo- gies are included as well as the effects of most important nonidealities. Experimental results show the effectiveness of the approach.
-
DAISY-CT: a high-Level Simulation tool for continuous-time /spl Delta//spl Sigma/ modulators
Proceedings 2002 Design Automation and Test in Europe Conference and Exhibition, 2002Co-Authors: K. Francken, M. Vogels, E. Martens, G. GielenAbstract:To reduce the long circuit-Level Simulation time of /spl Delta//spl Sigma/ modulators, a variety of techniques and tools exist that use high-Level models for discrete-time (DT) /spl Delta//spl Sigma/ modulators. There is, however, no rigorous methodology implemented in a tool for the continuous-time (CT) counterpart. Therefore, we have developed a methodology for the high-Level Simulation of CT /spl Delta/E modulators and implemented this method in a user-friendly tool. Key features are the Simulation speed, accuracy and extensibility. Nonidealities such as finite gain, finite GBW, output impedance and also the important effect of jitter are modelled. Finally, experiments were carried out using the tool, exploring important design trade-offs.
-
Dedicated system-Level Simulation of /spl Delta//spl Sigma/ modulators
Proceedings of the IEEE 2001 Custom Integrated Circuits Conference (Cat. No.01CH37169), 2001Co-Authors: K. Francken, M. Vogels, G. GielenAbstract:A new approach is presented for significantly speeding up system-Level Simulation of /spl Delta//spl Sigma/ modulators. The method is based on high-Level Simulation that can be combined with an acceleration algorithm and has been implemented in C. Also, the decimator has been included yielding a complete and fast Simulation of the whole converter. This reduces the bottleneck seen in system-Level Simulation of complete systems, e.g. receiver front-ends. Different topologies are included as well as the effects of most important nonidealities. Experimental results show the effectiveness of the approach.
Li Chen - One of the best experts on this subject based on the ideXlab platform.
-
system Level Simulation methodology and platform for mobile cellular systems
IEEE Communications Magazine, 2011Co-Authors: Li Chen, Xin Zhang, Wenwen Chen, Bin Wang, Hongyang Chen, Dacheng YangAbstract:System-Level Simulation has been widely used to evaluate the comprehensive performance of different mobile cellular systems. System-Level Simulation methodologies for different systems have been discussed by different organizations and institutions. However, the framework for a unified Simulation methodology and platform has not been established. In this article, we propose a general unified Simulation methodology for different cellular systems. Both the design of the Simulation structure and the establishment of the Simulation platform are studied. Meanwhile, the unified modeling and the realization of various modules related to the system-Level Simulation are presented. The proposed unified Simulation methodology and the general Simulation platform can be used to evaluate the performance of multiple mobile communication systems fairly. Finally, the overall performance of LTE and Mobile WiMAX systems is evaluated through the proposed framework. The key Simulation results for both Full Buffer and VoIP traffics are presented and discussed. It is shown that the LTE system exhibits better performance than Mobile WiMAX.
