Network. A Simulation Platform for Wireless Systems. Chair of Communication Networks RWTH Aachen University, Faculty 6

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03/05/07 ComNets, RWTH Aachen University, Faculty 6

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A Simulation Platform for Wireless Systems

A Simulation Platform for Wireless Systems

Chair of Communication Networks

RWTH Aachen University, Faculty 6

B. Walke, M. Schinnenburg, D. Bültmann

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03/05/07 ComNets, RWTH Aachen University, Faculty 6

Outline

Outline

• Motivation

• What it is and what it’s not • Objectives

• Simulation Platform

• Funding Scheme & Timeline • Support Actions

• Community Buildup & Early Beta Testers

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etwork

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A Simulation Platform for Wireless Systems

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Motivation

• Performance evaluation by means of simulation is an integral part of any

– standardization,

– system development or – research activity.

• Typically such activities involve multiple parties, which pursue different interests.

• Results of own evaluations need to be defended and evaluation results of other parties need to be reviewed.

Î Common open source system level simulation platform

promotes

• Reduction of Cost and Effort • Quality Increase

• Process Speed-up

• Integration of Results for End-To-End Evaluation in Collaborative Projects

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What it is and what it’s not

• Dynamic Event Driven System Level Simulation Platform

– Investigations of dynamic protocol behavior

– Cross-layer effects

– Online calculation of intra- and inter-cell interference

• Full fledged protocol stacks

– Released during project

IEEE 802.16 e,j

3GPP UMTS (Release 7)

• Typical Results

– Protocol level results

• E2E Packet Delay, Throughput • Buffer Fill Levels

• Retransmissions • BER, PER, FER

– Physical layer results

• SINR distributions (over area, per terminal, per cell)

• Radio planning tool with ray tracing capabilities covering large scenarios of several 100 km²

• Tool to design and run

protocol stacks on an FPGA • Monte-Carlo Simulator

Æ But since it is open source,

you never know …

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Objectives

• To realize an open source event-driven system level simulator for the performance evaluation of wireless communication networks

• To establish a simulation platform which allows for the detailed simulation of protocol stacks (close to emulation) and at the same time allows for the accurate calculation of

the interference situation (intra- and inter-cell interference) based on advanced channel models.

• To identify and implement advanced channel models (e.g., for MIMO, SDMA or OFDMA).

• To establish a protocol framework which allows for rapid prototyping by offering a set of strictly tested protocol components (e.g., ARQs, flow handling, association

management, handover procedures) and extension points within these for the customization. • To implement two wireless communication systems: UMTS Release 7 (focus on

HSPA) and IEEE 802.16 e/j (WiMAX).

• To establish a process to integrate community contributions into official releases of the simulation platform.

• To have regular releases of the simulation platform ensuring fast response to change requests from the community.

• To build a simulation platform which enables clustering EU projects. • To identify or define an appropriate license model.

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Simulation Platform

3 May

2007 ComNets, RWTH Aachen University, Faculty 6

Interference Calculation Engine IEEE 802.21 Media Independent Handover IPv4 UDP Applications

IEEE 802.16e,j IEEE 802.3

OFDMA-Transceiver

Model Stochastic Channel Model CDMA-Transceiver Model 3GPP UMTS Rel.7 + HSPA TL-NL TCP AL-TL NL-DLL DLL-OFDMA DLL-UMTS DLL-Stochastic Stochastic Traffic Models Environment + Scenario User Mobility Statistical Evaluation ISO/OSI Layer 1 2 3 4 7

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Funding Scheme

Funding Scheme

• openWNS Project as part of 7th FP (EU)

– Small or medium-scale focused research actions (STREP)

– Project start: by the end of 2007

– Project end: by the end of 2009

• Target of EC Contribution : 2.5 Mio €

• Target Efforts : 360 PM

• Project Duration : 2 Years

• Current Consortium:

– 2 SMEs

– 2 Universities – 4 Manufacturers

– 1 Operator (Strategic Support)

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Project Management

Simulation Platform

Channel Models

Protocol Framework

UMTS

WiMAX

Quality Assurance

Release Management &

Community Support

System Group

Platform Group

Core Channel Toolbox

Releases

QA QA

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Project Structure

WP1 WP2 WP3 WP4 WP5 WP6 WP7

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Project

Project

Timeschedule

Timeschedule

03/05/07 ComNets, RWTH Aachen University, Faculty 6

New fuctionality developed within the project Ported from existing simulator 2 4 6 8 10 12 14 16 18 20 22 24 openWNS Functionality Project Month Releases core ignition takeoff climb orbit

Functionality of existing simulator

openWNS Core:

Basic Functionality in Framework First Protocol Toolbox Elements Basic System Module Functionality

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openWNSWNS Core:

Basic Functionality in Framework First Protocol Toolbox Elements Basic System Module Functionality

openWNS Ignition: System Tests

Extended Features in System Modules

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openWNSWNS Ignition: System Tests

Extended Features in System Modules openWNS Takeoff:

First Public Release of openWNS Automatic System Tests

Trouble Ticket System IEEE 802.16e

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openWNSWNS Takeoff:

First Public Release of openWNS Automatic System Tests

Trouble Ticket System IEEE 802.16e

openWNS Climb: Graphical User Interface

UMTS Release 5

Special Features in System Modules (HSDPA, HARQ) IEEE 802.21 Media Independent Handover

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openWNSWNS Climb: Graphical User Interface

UMTS Release 5

Special Features in System Modules (HSDPA, HARQ) IEEE 802.21 Media Independent Handover

openWNS Orbit:

Final Release of openWNS UMTS Release 6/7

IEEE 802.16j

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openWNSWNS Orbit:

Final Release of openWNS UMTS Release 6/7

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Support Actions Beyond

Support Actions Beyond

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WNS

WNS

• External Software Contributions

– Potential contribution from IMT-Advanced

• WINNER III Project • IEEE 802.16m

• IEEE 802.11n

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Prototypical 4G Implementation based on

public results

• Strategic Support

– Advisory Board to be established

– We invite all of you to give Strategic Support

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Community Buildup & Early Beta Testers

Community Buildup & Early Beta Testers

03/05/07 ComNets, RWTH Aachen University, Faculty 6

• Community Buildup

– Web portal

• Excellent Documentation • Comprehensive Tutorials

• Integrated Trouble Ticket System

– Regular releases

– Work shops

• Early Beta Testers

– All of the above plus access to internal releases

– Must be invited by the consortium

– May not redistributed (unreleased) source code

(special license needed)

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WNS Demonstration

WNS Demonstration

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03/05/07 ComNets, RWTH Aachen University, Faculty 6

Contact

Contact

Prof. Dr.-Ing. B. Walke

Dipl.-Ing. M. Schinnenburg

Dipl.-Ing. D. Bültmann

{walke|msg|dbn}@comnets.rwth-aachen.de

Chair of Communication Networks

RWTH Aachen University

Kopernikusstrasse 16

52074 Aachen, Germany

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