Fiber OpticReceiver

Analog to Digital

Converter

Digital SignalProcessing

Fiber Optic Splitter

Fiber Optic Coupler

Fiber Optic Coupler

Fiber Optic Splitter

David Sheets

343

Layth Al-Jalil

335

Adam Fritz 309Jay Becker 303

Fiber Optic Cable

$50

Fiber Optic Splitters,

Couplers, etc.

$500

Poster

$50

NIC(s) and

Tranceivers

$5,000 Student Labor

$12,790

Fiber optic network in ring topologyFiber optic network in ring topology Custom software implementing a Time Custom software implementing a Time

Division Multiplexing (TDM) schemeDivision Multiplexing (TDM) scheme Documentation summarizing conclusionsDocumentation summarizing conclusions

Engineers at Lockheed Martin & Engineers at Lockheed Martin & researchers at Iowa State Universityresearchers at Iowa State University

Provide a low latency medium for Provide a low latency medium for transmission of high resolution video and transmission of high resolution video and other high bandwidth dataother high bandwidth data

Test the viability of different protocols, Test the viability of different protocols, processor configurations, and future fiber processor configurations, and future fiber optic technology solutionsoptic technology solutions

Scheduler Node 1

Node 3 Node n

Back upNode 2

May 07-06 Team Members:Layth Al-Jalil (Cpr E) Adam Fritz (EE) Jay Becker (Cpr E/ComS) David Sheets (EE/CprE)

Faculty Advisors:Dr. Mani Mina Dr. Arun SomaniDr. Robert Weber

Introduction

Project Schedule

Problem Statement & Solution

Operating Environment

There is no requirement to develop a There is no requirement to develop a custom network interface cardcustom network interface card

Development of this system will be largely Development of this system will be largely drawn from existing researchdrawn from existing research

Budget of $5000Budget of $5000 Project lifespan is 9 monthsProject lifespan is 9 months COTS equipment must be primarily usedCOTS equipment must be primarily used

Assumptions & Limitations

End Product

Project Requirements

Topology will support bi-directional signal propagationTopology will support bi-directional signal propagation Scheduling software will run on NIC independent of hostScheduling software will run on NIC independent of host Network will tolerate insertion and removal of nodesNetwork will tolerate insertion and removal of nodes Design must be a cost effective solutionDesign must be a cost effective solution

$5000 budget does not support an extensive system$5000 budget does not support an extensive system Range of commercially available fiber optic transceivers and attenuation through topology Range of commercially available fiber optic transceivers and attenuation through topology

limits the network to four nodeslimits the network to four nodes Software must run on the NIC, not host platformSoftware must run on the NIC, not host platform Power loss across node sub-networks limits total number of nodesPower loss across node sub-networks limits total number of nodes

Estimated Cost for Spring 2007Estimated Cost for Spring 2007 ($18,390)($18,390)

Research will be conducted to determine similar industry solutionsResearch will be conducted to determine similar industry solutions Consultation with customer to clarify requirementsConsultation with customer to clarify requirements Consultation with advisors and graduate students on technical issuesConsultation with advisors and graduate students on technical issues Subsystem prototyping and testing used to guide final integrationSubsystem prototyping and testing used to guide final integration

The performance of high speed fiber optic systems is interlaced with the issues of network The performance of high speed fiber optic systems is interlaced with the issues of network topology, fault tolerance, and decentralized control. Our team is building a fiber optic network topology, fault tolerance, and decentralized control. Our team is building a fiber optic network supporting ten gigabit per second baud rate that utilizes a ring topology and bi-directional supporting ten gigabit per second baud rate that utilizes a ring topology and bi-directional data transfer to provide a fault tolerant network solution. This design enables every node in a data transfer to provide a fault tolerant network solution. This design enables every node in a network to serve as a scheduler, thus providing decentralized control where the loss of a network to serve as a scheduler, thus providing decentralized control where the loss of a control node is mitigated by having immediate back up available. When complete, this control node is mitigated by having immediate back up available. When complete, this solution will be directly integrated into conventional avionics architectures. solution will be directly integrated into conventional avionics architectures.

Abstract

Avionics platforms are increasingly demanding greater throughput between system elements. Avionics platforms are increasingly demanding greater throughput between system elements. These requirements are driven by the need to transmit real time video to the pilot and crew, These requirements are driven by the need to transmit real time video to the pilot and crew, broadcast complex tactical data throughout a military vehicle, and to provide expansion broadcast complex tactical data throughout a military vehicle, and to provide expansion bandwidth for the next generation of equipment . This team is realizing that vision as a fiber optic bandwidth for the next generation of equipment . This team is realizing that vision as a fiber optic network because as data transfer moves beyond the ten gigabit per second rate the only network because as data transfer moves beyond the ten gigabit per second rate the only effective, EMI insensitive medium is fiber optics. effective, EMI insensitive medium is fiber optics.

Estimated Resources

Approach and Considerations

Closing Summary

Modern avionic platforms require data networks that can accommodate current and future Modern avionic platforms require data networks that can accommodate current and future bandwidth needsbandwidth needs

Industry trend is for many modules to share in tasks of processing dataIndustry trend is for many modules to share in tasks of processing data Build a network capable of 10 Gbps transceiver to transceiver communicationBuild a network capable of 10 Gbps transceiver to transceiver communication

Client:

Military avionic platforms and derivative Military avionic platforms and derivative systemssystems

High Speed Communication and High Speed Communication and Dependable Computing LaboratoriesDependable Computing Laboratories

Intended Users and Uses

Estimated Personnel HoursEstimated Personnel Hours (1,290 Total Hours)(1,290 Total Hours)

Department equipment was utilized for initial testingDepartment equipment was utilized for initial testing None of the available equipment supports 10GbpsNone of the available equipment supports 10Gbps Multimode equipment is available in the lab; single mode equipment is notMultimode equipment is available in the lab; single mode equipment is not Concepts must be proven with lab equipment before making purchasesConcepts must be proven with lab equipment before making purchases

TDM/Loop Topology

Bi-directional data flow

Node 1

Coupler/Splitter

Coupler/Splitter

Coupler/Splitter

Coupler/Splitter

Tx

Rx

Node 1

Node 1Node 1

Tx

Tx

Tx

Rx

Rx

RxBi-directional Data Flow

Input / Output

NIC Transmitter NIC ReceiverTDM Order of Transmission

Node n to transmit

(Represents order of control, not signal path)

Node 2 to Transmit

Node 3 to transmit

Design Objectives

Functional Requirements

Design Constraints

Measurable Milestones

Proposed Approach

Technologies Considered

Testing Considerations

Fiber optic transceivers will transmit and receive serial data at a 10 GbpsFiber optic transceivers will transmit and receive serial data at a 10 Gbps Each node will distinguish between a strong signal and a weak signalEach node will distinguish between a strong signal and a weak signal Scheduler will determine the order and duration of each node’s transmissionScheduler will determine the order and duration of each node’s transmission Each node will transmit when the scheduler transmits authorizationEach node will transmit when the scheduler transmits authorization

Measure power output from a dummy fiber optic network to confirm that signals propagate in Measure power output from a dummy fiber optic network to confirm that signals propagate in the designthe design

Implement a two node network to test the TDM scheduling algorithmImplement a two node network to test the TDM scheduling algorithm Expand network to four nodes and test TDM scheduling algorithmExpand network to four nodes and test TDM scheduling algorithm Upgrade network from 2.5 Gbps to 10 Gbps and measure bit rateUpgrade network from 2.5 Gbps to 10 Gbps and measure bit rate

Single mode technologies chosen for ease of use (fiber, couplers, splitters, etc.)Single mode technologies chosen for ease of use (fiber, couplers, splitters, etc.) Myrinet supports 10Gbps but software is not customizable, thus it was rejectedMyrinet supports 10Gbps but software is not customizable, thus it was rejected Xilinx Virtex IV supports 10Gbps and is reprogrammableXilinx Virtex IV supports 10Gbps and is reprogrammable

Optical signal up to 10Gbps

Electrical RF signal

Digital signal

Processed digital signal