MOBILE-CDS PRESENTATION

LTE SIMULATIONURBAN/RURALSalvador Sibecas, CTO - SOLWireless LLC

For Sales Inquiries contact

(561) 306 – 4996edwinhm@eglacorp.comDr. Edwin A. Hernandez

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TABLE OF CONTENT

1. Introduction to Mobile-CDS.

2. Tool components diagram.

3. Computational engine description.

4. Protocols toolbox.

5. 3D databases toolbox.

6. Material properties.

7. Antenna toolbox.

8. Analysis/post-processing toolbox.

9. Simulation results.

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INTRODUCTION

Mobile-CDS is a 3D deterministic propagation tool with unlimited potential in areas

such as; RF characterization of specific regions, wireless protocol evaluation and

military applications. Its internal engine is based on ray-tracing technology and the

code is fully parallelized, specially designed for 4G/5G Simulation (e.g. LTE)

From the comfort of his or her office, using Mobile-CDS the wireless system

engineer is able to change several simulation parameters (i.e., the TX and RX

antenna height and gain patterns, the carrier frequency, material properties,

propagation environment, etc.) and determine their impact on the received signal.

Product design cycle time is greatly reduced and money is saved by avoiding

expensive and time consuming field data collection campaigns. Field data is only

gathered at the end of the design cycle for verification purposes.

During the next hour detailed characteristics of the tool and some of its capabilities

will be presented. We hope that during this time you all enjoy the presentation and

if there are questions, feel free to ask.

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TOOL CMPONENTS DIAGRAM

Data Processing

Engine

User Interface

Computational Engine

Protocol Toolbox

3D Database Toolbox

Material Properties Toolbox

Antennas Toolbox

Analysis Toolbox

Simulation Data

Presentation

Figure 1

COMPUTATIONAL ENGINE

The computational window is used to initialize some of the propagation parameters needed to run the program. These include:

o The number of transmitted wavefronts.

o The number of bounces before a wavefront is terminated.

o The propagation modes (LOS, reflection and transmissions and diffraction).

o Outdoors only (faster) or both outdoor and indoor.

Figure 2

WIRELESS PROTOCOL TOOLBOX

The wireless protocol toolbox includes both, hardcoded and user defined protocols specifications. The program uses the protocol specifications in order to estimate data rate and throughput statistics in the simulated region.

Figure 3

3D DATABASES TOOLBOX

Mobile-CDS includes a state of the art 3D databases toolbox. It allows the user to perform the following operations:

o Import 3D databases in one of the following formats; Facet, KML and TIN.

o Combine terrain and 3D objects (buildings, vehicles, trees, etc.).

o Crop a section of the 3D databases.

o Assign different electrical properties to different objects included in the databases.

o Delete specific objects.

o Duplicate databases

Figure 4

Selected Buildings

Cars Included

ANTENNAS TOOLBOX

Mobile-CDS uses 3D antenna patterns in all of its simulations. The patterns are specified in term of their complex Eq

and Efelectric field components. This allows the program to track both, the magnitude and the phase of the signal as it propagates through the environment. Patterns generated by antenna manufacturers, measured in an anechoic chamber or generated using an electromagnetic solver such as XFDTD, can easily by converted into .ant format and use in the simulation in order to produce more accurate results.

Figure 6

Imported head and hand measurements at 1.8 GHz

Ideal half-wave dipole

ANALYSIS/POST-PROCESSING TOOLBOX

Figure 7

Mobile-CDS includes an analysis engine, which allow it to carry out several post-processing functions on the simulation data generated. These are just a few:

o RF coverage.o RMS-Delay estimates.o Throughput calculations. o Interference analysis.

In addition, the program outputs the results in an enhanced file format, which allows the system engineer to post-process the data using one of several scripting languages such as Matlab or Python.

Receivers On Vertical Plane

Receivers On Horizontal Plane

Receivers Along High Resolution Linear Path

SIMULATION RESULTS(LTE THROUGHPUT)

Figure 8Receivers On Horizontal Plane

Base Station

Parameter Value

Wireless Protocol LTE

TX frequency (MHz) 2110

TX total average power (dBm) 44.8

Htx (meters) 15

TX antenna pattern18.0 dBi, 4-sector 60

degrees pattern

TX Losses 6.0 dB

Hrx (meters) 2.0

RX antenna pattern Ideal half-wave dipole

RX antenna efficiency (%) 50

Diversity gain (dB) 3

LTE Throughput Simulation Parameters

SIMULATION RESULTS(LTE THROUGHPUT)

Figure 9

Data Rate(Mbps)

LTE Protocol Specifications