Cadence AWR Visual System Simulator VSS

System simulation and modeling for wireless communications and radar system design
Visual System Simulator

Communications/Radar Systems 

Visual System Simulator™ (VSS) RF/wireless communications and radar system design software supports VSWR-aware modeling of RF and DSP blocks, providing time-domain, frequency-domain, and circuit-envelope analyses. With VSS, Tx/Rx designers are able to develop and optimize system architectures and determine component specifications for best overall performance. Users can simulate system metrics such as BER and EVM with pre-configured and user-defined virtual test benches, as well as identify the source of spurious products and other system impairments.

Features at a Glance

  • Behavioral Models – Impedance mismatch incorporating the impact of component VSWR on system performance 
  • Circuit Envelope – Analysis of digitally-modulated RF circuits including EVM, BER, and adjacent channel power ratio (ACPR) simulations
  • Planning/Analysis Tools – Cascaded RF measurements, frequency planner (option), and spurious analysis 
  • Co-Simulation – With Microwave Office circuit design software
  • Test Benches – Wireless standards including 5G, LTE, narrowband internet of things (NB-IoT), and more
  • Libraries – Radar and 5G signals and waveforms, inclusive of test benches


5G Communications

Develop and test new algorithms and modulated waveforms within an RF-aware communication system to explore the impact of the front-end electronics and channel propagation on signal processing.

System Architecture

Conceptualize and rapidly implement end-to-end system designs from baseband through RF and over the air (OTA), performing link-budget analysis to define component requirements.

Wireless Conformance 

Simulate the performance and functionality of any wireless device in accordance with all main cellular communications, wireless connectivity, and broadband standards.

Radar and Defense Systems

Develop radar, electronic warfare (EW), electronic countermeasure (ECM), and electronic-support measure (ESM) system architectures, configure phased-array antennas, and simulate complex RF front ends.

Related customer stories

VSS gives us a deeper understanding of system aspects. Its flexibility and open platform means parameter optimization can quickly and easily be done. With VSS we were able to successfully realize our system.
Lars Pettersson
Research Engineer

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VSS has increased my productivity by providing more accurate results while at the same time cutting design cycle time. The software offers an intuitive design flow that has allowed me to quickly evaluate modulation schemes and radio/RF/DSP architectures, and has helped us optimize our system engineering design flow.
Sy Prestwich
Vice President & Co-founder, Chief Scientist
S5 Wireless (now part of Recon Dynamics)

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The seamless integration of the Microwave Office and VSS software gave me more meaningful results because I was able to simulate my power amplifier circuit design’s response to the EDGE/GSM modulated input signal with one design platform. I used Microwave Office and VSS from circuit concept all the way through to product completion. I was exceptionally happy with the technical quality of the ACPR and EVM simulation results.
TriQuint Design Engineer
TriQuint (now Qorvo)

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