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- MIMO and 5G Simulation Software
- 5G Urban Small-Cell Analysis
5G Urban Small-Cell Analysis
Wireless InSite simulates complex environments and dense urban scenes, overcoming multipath and other challenges.
With a tremendous increase in the number of connected devices and mobile data demand predicted over the next decade, the wireless communications industry is exploring new technologies to accommodate 5G wireless data systems, including MIMO (multiple-input, multiple-output) technology and millimeter wave frequency bands. One of the more complex environments for these technologies are urban small cells, where the prevalence of multipath and non-line-of-sight conditions leads to many challenges, particularly at higher frequencies.
With massive MIMO, large antenna arrays are able to provide data streams to multiple users within the same frequency band in a small cell. In an urban environment, signals can travel over many paths; this multipath causes the channel characteristics across an array of antennas to be extremely complex, particularly with devices in motion. Furthermore, at planned millimeter wave bands, higher path loss, atmospheric effects, and shadowing are even more pronounced in scenarios with significant urban clutter. Simulating these effects is critical for predicting MIMO system performance.
Wireless InSite can simulate base stations with MIMO antennas in very complex, three-dimensional dense urban scenes.
Simulating MIMO in Dense Urban Environments
FD-MIMO beamforming improves SNR in downtown Boston, increasing throughput across coverage area.
Remcom offers a unique ray tracing capability for simulating MIMO antennas for 5G small cells in dense urban scenes. The MIMO version of Wireless InSite predicts accurate path data between each transmitting and receiving element with precision and reveals key channel characteristics in a timely manner. With optimizations that minimize runtime and memory constraints, Wireless InSite is able to efficiently simulate MIMO systems, including large arrays anticipated for millimeter wave MIMO systems situated in dense urban environments. New features for millimeter wave frequencies, including atmospheric losses and diffuse scattering from surfaces, offer additional accuracy to predict effects that become increasingly important at higher frequencies.
Communication systems analysis capabilities allow a user to predict how beamforming and spatial multiplexing can increase the signal-to-noise-ratio (SNR) or generate multiple data streams (e.g., MxN MIMO), increasing throughput in a coverage area or at the cell edge. Wireless InSite’s full access to path data allows users to truly understand the multipath environment. Post-processing capabilities for MIMO allow users to further process results to extract additional data such as the complex channel matrix or the angle spreads of arrival and departure. See our MIMO Beamforming, Spatial Multiplexing & Diversity page to find out more about Wireless InSite’s MIMO simulation capabilities.
Watch the Simulation of Massive MIMO Beamforming in an Urban Small Cell webinar...
Additional Information
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Webinars
Simulation of Massive MIMO Beamforming in an Urban Small Cell
This webinar demonstrates Wireless InSite’s MIMO simulation and Massive MIMO antenna design capabilities to predict the multipath and channel characteristics for a Massive MIMO system in an urban small cell. Different beamforming techniques are applied to the simulation results in order to predict the beams to several mobile devices and observe how they change as one device moves along a route through the city.
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Beamforming Simulations to Evaluate Opportunities and Challenges for 5G mmWave and FD-MIMO
Millimeter wave bands create new opportunities for 5G, but they also introduce challenges for planning and performance. In this webinar, we use Wireless InSite MIMO to simulate FD-MIMO systems and review some of the real-world challenges that beamforming systems face in their attempts to gather accurate channel state information that is critical to their success.
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Application Examples
Throughput of a 5G New Radio FD-MIMO System in an Urban Area Using Custom Beamforming
This example demonstrates how a custom beamforming table can be used to model downlink data rates from three MIMO base stations for 5G New Radio in a section of Boston.
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5G Massive MIMO Outdoor Communications Analysis
In this example the signal transmission between a massive MIMO base station and a mobile device located in downtown Rosslyn is analyzed using Wireless InSite’s MIMO capability.
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Videos
Channel Modeling for 5G Demonstration
This demonstration shows how Wireless InSite meets 3GPP and METIS channel modeling requirements for 5G.
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LTE and 5G NR Propagation in a Suburban Environment using Wireless InSite 3D Ray Tracing
Penn State University is located in State College, Pennsylvania, a suburban city that contains several LTE sites. This simulation shows the coverage prediction from its existing LTE sites in the downtown area.
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Massive MIMO Beamforming in Motion
Remcom performed a study using Wireless InSite's MIMO capability to generate the complex channel matrices for several mobile devices in an urban scene. We then extracted these results and applied two standard beamforming algorithms (using mathematical analysis tools) to visualize beamforming in motion.
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Publications
Using EM Simulation for 5G Design E-Book
Download examples that demonstrate how EM simulation software solves challenges related to 5G and MIMO. Examples include MIMO and array design, 5G urban small cells, mmWave and beamforming.
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Simulation of Beamforming by Massive MIMO Antennas in Dense Urban Environments
This presentation demonstrates a predictive capability for simulating massive MIMO antennas and beamforming in dense urban propagation environments. Remcom's unique approach allows us to predict the signal-to-interference-plus-noise ratio (SINR) at specific device locations and the actual physical beams formed using these techniques, including unintentional distortions caused by pilot contamination.
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Simulation of Beamforming using FD-MIMO for LTE-Advanced Pro in an Urban Small Cell
This presentation demonstrates a new predictive tool for simulating Full Dimension Multiple Input, Multiple Output (FD-MIMO) in urban environments. We evaluate a hypothetical small cell base station employing FD-MIMO for cases using different numbers of transmit antennas, then analyze predicted multipath in the environment and compare performance of beamforming techniques for each of the simulated cases.
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