3rd Annual Winter Workshop

Jan 10-13, 2004

Abstracts & Presentations

 

Presenter

Institution

Title

 

 

Dr. N. Ansari

New Jersey Inst. of Technology

QoS Multimedia Networks

abstract

presentation

Dr. K. Cheok,

Oakland University

Introduction to Kalman Filtering and Its Applications

abstract

presentation

Dr. D. Zhao

University of Michigan –Dearborn

Laser Radar Imaging

abstract

presentation

Dr. M. Ehsani

Texas A&M University

Control of the BLDC Machine with Improved Performance

abstract

presentation

Dr. M. Saquib

University of Texas at Dallas

UWB Communications for Military

abstract

presentation

Dr. J. Guo

University of Michigan-Dearborn

Fault Tolerance Computing

abstract

presentation

Dr. D. Bhatia

University of Texas at Dallas

Reconfigurable Computing for Wideband Signal Processing

abstract

presentation

Dr. S. Ganesan

Oakland University

Multi processor Architecture, Parallel Processing and Reconfiguration

abstract

presentation

Dr. H. Toliyat

Dr. B. Fahimi

Texas A&M University

University of Missouri-Rolla

Reconfigurable Motor Drives and Power Electronics Based Architectures For Military Vehicles

abstract

presentation

Dr.V. Chaudhary

Wayne State University

Software Scalable System on Chip: Reconfigurable, Real-Time, and High Performance Solution for Embedded Space

abstract

presentation

Dr. C. Mi

University of Michigan-Dearborn

Electric and Hybrid Vehicles

abstract

presentation

Dr. S.  Mahmud

Wayne State University

Ad-Hoc Networks And A New GPS Measurement Technology for Robotic Follower Applications

abstract

presentation

Dr. A. Jennings

Time Domain Corp.

UWB Radar Applications

abstract

presentation

Dr. G. Smid

Oakland University

Methods and Techniques for Simulation and Prototyping

abstract

presentation

Dr. J. Shen

University of Michigan - Dearborn

Surface Denoising of Polygonal Meshes for Feature Recognition and Shape Matching

abstract

presentation

Dr. E. Yaprak

Wayne State University

Application of Commercial Network Measuring/Monitoring Practice to Battlefield Information Management

abstract

presentation

 

 

 

Introduction to Kalman Filtering and Its Applications  (Monday, Jan 12, 1000:1500)

Professor Ka C Cheok,

Electrical & Systems Engineering Dept,

Oakland University

 

Abstract: Kalman filtering (KF) techniques have been applied in numerous scientific investigations and engineering applications. Most tracking systems, such as GPS, radar, sonar, optical, infrared sensor systems, use Kalman filters to smooth information acquired from corrupted data reported from sensors and simultaneously compensate for the motion involved during the measurements.  Kalman filter is also used in many systems involving multi-sensor fusion, feedback control and prediction (forecast) schemes.  These applications have led to many successful commercial and military applications. The basic idea behind Kalman filtering is to combine a system model (the differential or difference equation that describes the dynamical motion of the system being investigated) and the measurement model (the observations made of the variables of the system) in an optimum manner, to compute the best estimate of the present state of the system. In certain cases, the KF can also be used to predict future states with reasonable accuracy.  Since 1960, a large number of articles have been published in conferences, journals and books, with regards to Kalman filtering, algorithms and its applications.  The vast literature often focuses on advanced variations of the subject that can sometimes be vague to uninitiated readers.  In this seminar, the underlying principles of Kalman filter will be explained in depth and made simple and clear with illustrative examples. Practical examples of KF application to tracking, control and sensor fusion systems will be presented.  The topics to be covered include: Essential algebraic and differential math; essential statistics; system models; measurement models; observer theory; optimal estimation (derivation of KF); forms of KF (analog & discrete); KF algorithms; extended KF; practical aspects of KF; KF trackers; and applications. Application examples will involve demonstration with Matlab simulation and animation of tracking systems with GPS, radar and/or sonar, and with an actual inertial stabilization platform control system. 

 

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Laser Radar Imaging (Monday, Jan 12, 1000:1500)

Dongming Zhao

Department of Electrical and Computer Engineering

University of Michigan –Dearborn

Tel: (313) 593-5527

Email: dmzhao@umich.edu

 

Abstract:  Future and emerging military applications have need of an accurate and effective imaging and range finding capability. Laser radar imaging has been becoming an increasingly valid technology for accomplishing both tasks. This technology is based on the principle of the continuous wave modulation of laser radar signals. Laser radar imaging has been primarily used in defense arenas, and the principle of CW laser radar imaging has been proposed and, in some cases, implemented. Modulation based laser radar imaging uses infrared (IR) laser as an active source to illuminate a desired scope of scenes and acquire range images via detecting phase shift at each of the image array pixels. A laser radar system acquires both intensity images and range images, at a high acquisition speed which compatible to video rates. A laser radar imager may apply only a single laser pulse, and few-centimeter range resolution. A complete system can be built in small size, weight, and power requirements. One future application is in vehicle navigation. A laser radar imager provides vehicle’s navigation control center a constant and real-time range and intensity images, therefore providing visual cues from intensity images and range information of the forward looking scenes. In a case of object detection or recognition, range images are vital in providing geometric information of targets. IR laser radar imaging has great commercial potential in industrial automation and robotics. This workshop aims to introduce both the principle of laser radar imaging and the new strategies in designing flexible long range object imaging and high fidelity in range image quality. Some innovative approaches in system design will be introduced and a case study will be included for in-depth understanding of the laser radar principle.

 

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QoS Multimedia Networks (Monday, Jan 12, 1000:1500)

Professor Nirwan Ansari

Department of Electrical and Computer Engineering

New Jersey Institute of Technology

Phone/fax: +1-973-596-3670

Email: Nirwan.Ansari@njit.edu

 

 Abstract: Multimedia consists of voice, video, and data in the same application. Sample multimedia applications include videoconferencing, video on demand, distant learning (training), distributed games, movies on demand, and with particular interest to the military, surveillance video and audio streams from unmanned platforms, and multimedia communications among military transports. Providing Quality of Service (QoS) for multimedia streaming has been a difficult and challenging problem. This tutorial provides an overview of the potential approaches to address this challenge. We first present QoS evaluation/ performance metrics from the network, multimedia quality, and user perception perspectives. The remaining of the tutorial covers the possible solutions to QoS provisioning for multimedia streaming, including the network support, the multimedia encoding support, and the service provider support. For the network support, we introduce different technologies for different types of networks such as ATM and IP networks. Several promising service models recently proposed by IETF (Internet Engineering Task Force) for supporting multimedia traffic over IP will be discussed. For the multimedia encoding support, we will review several encoding techniques such as layer encoding, temporal scalable encoding, and spatial scalable encoding that can be employed to facilitate QoS support for transmission over different network characteristics. For the service provider support, we investigate how proxy caching can be used to minimize bandwidth requirement and improve multimedia quality.

 

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Control of the BLDC Machine with Improved Performance (Tuesday, Jan 13, 0800:1700)

Mehrdad Ehsani, Ph.D., P.E., fellow IEEE

Director, Power Electronics and Motor Drives Laboratory and Advanced Vehicle Systems Research Program

Texas A&M University

Ehsani@ee.tamu.edu

 

Abstract: The Brushless DC (BLDC) motor drive system is one of the most popular advanced motor drives. High power density, very compact geometry and high efficiency, along with a simple control are among the main attractions for replacing many adjustable speed applications with this technology. BLDC machine is now mature and increasingly used in automotive, military, traction, aerospace, industrial, and consumer products. In this short course, we will address in detail the basics of the BLDC machine, comparing its features with those of other machines, its control strategies and conventional sensorless control techniques. Moreover, Advanced BLDC machine control topics including our novel sensorless position detection technique based on a new physical concept will be presented.  Advanced controls are used for improving reliability in case of sensor failure and to maximize the power density and minimize the size and weight of the BLDC generator.  The course will end with a discussion of BLDC machine drive application trends.

 

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UWB Communications for Military (Tuesday, Jan 13, 0800:1700)

M. Saquib

Department of Electrical Engineering

The University of Texas at Dallas

 

 Abstract:  UWB technology is a modern wireless technology, which transmits and receives very short base-band impulses without the use of a carrier.  The extremely narrow pulse width of UWB systems allow for fine delay resolution, which can yield positioning measurement accurate to within a few centimeters.  Narrow pulse width and low duty cycle cause UWB signals to be spread very thinly over a wide bandwidth ranging from near DC to several GHz, resulting in an extremely low power spectral densities. Low probability of intercept (LPI), low probability of detection (LPD) and high resilience to multi-path and multi-user interference: these three fundamental characteristics of the UWB signal coupled with significant recent research advancements make it a highly potential candidate for various applications of future wireless technology, specially for various operational requirements of the army. LPI and LPD characteristics of the UWB signal make it attractive to tactical operations which rely on stealth, whereas, unmanned military operations such as self location, object detection and path detection can benefit from the fine delay resolution and penetration characteristics of UWB signals. The precise ranging, self location and penetration capabilities of UWB signals offer advantages to apply it for various radar applications such as range determination, terrain mapping, object detection by ground penetration and foliage penetration, detection of airborne targets and tracking low altitude missiles.  In this presentation, the speaker will address the challenges to fulfill the requirements and overcome the limitations imposed by the military applications. The fundamental issues related to UWB technology for designing simple, efficient and cost effective transceivers will be discussed.  The presentation will broadly cover the following topics.

 

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Fault Tolerance Computing (Tuesday, Jan 13, 1300:1700)

Jinhua Guo

Department of Computer and Information Science

University of Michigan-Dearborn

Email: jinhua@umich.edu

(313) 583-6439

 

Abstract: Fault Tolerance is defined as the characteristic by which a system can mask the occurrence and recovery from the failures. In other words, a system is fault tolerance if it can continue to operate in the presence of failure. Fault-tolerant systems are poised to become a growth area in the not too distant future, particularly in the automotive world, as brake- and steer-by-wire systems become a reality in the next few years. Such systems must be "fail operational" as they are deemed safety critical; if the system develops a fault, it could have catastrophic consequences. In this four hour workshop, we will take a closer look at techniques for making a system fault tolerant. After providing some general background on fault tolerance, we will look at process resilience and reliable multicasting. Process resilience incorporates techniques by which one or more processes can fail without seriously disturbing the rest of the system. While reliable multicasting services guarantee that message are delivered to all members in a process group. Furthermore, we will discuss the distributed commit problem, which involves having an operation being performed by each member of a process group, or none at all. Finally, we will examine how to recover from a failure. In particular, we consider when and how the state of a distributed system should be saved to allow recovery to that state later on.

 

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Reconfigurable Computing for Wideband Signal Processing (Wednesday, Jan 14, 0800:1200)

Dinesh Bhatia

Department of Electrical Engineering

The University of Texas at Dallas

dinesh@utdallas.edu

 

Abstract: The Department of Defense has a crucial need for dynamically and quickly reconfiguring processing environments to effectively respond to changing battlefield conditions, and to increase the survivability of infrastructure and weapon systems at the lowest possible cost. Ultrawide Band (UWB) technology is fast becoming a communication technology of choice due to its ability to transmit information over a wide spectrum and consuming ultra low power. UWB is very secure and has tremendous applications in military. UWB is pretty much immune to electronic eavesdropping, is equally immune to interference or jamming, and because its broad frequency range includes the ultra-low frequencies used to communicate with submerged submarines, UWB can be used easily in buildings and even underground. And because of the random nature of UWB timing schemes, there appears to be virtually no limit to the number of UWB signals that can share the same airwaves. The processing demands for UWB signals is tremendous and it is unlikely that pure software based solutions will provide real time performance. This workshop will provide overview of reconfigurable computing and its applications in UWB signal processing. In particular, it will introduce reconfigurable computing as a technology overview, provide in-depth analysis of technologies that facilitate reconfigurable computing, recent advances in the field, and then study the applications in UWB signal processing that can be exploited using reconfigurable computing.

 

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Multi processor Architecture, Parallel Processing and Reconfiguration (Wednesday, Jan 14, 1300:1700)

Subra Ganesan

Department of Computer Science and Engineering

Oakland University, Rochester, MI 48309

Phone: (248) 370 2206

Email:  Ganesan@oakland.edu

 

Abstract:  This TUTORIAL emphasizes design of multiprocessor system, parallel architecture, reconfigurable architecture, design considerations and applications. The topics covered include:  Classes of computer systems, SIMD, MIMD computers, interconnection networks and parallel memories, parallel algorithms; performance evaluation of parallel systems, pipelined computers, multiprocessing by tight and loose coupling, distributed systems, data flow machines, architecture and software considerations.

 

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Reconfigurable Motor Drives and Power Electronics Based Architectures For Military Vehicles (Wednesday, Jan 14, 0800:1700)

Dr. H. Toliyat

Department of Electrical Engineering

College Station, TX 77840

Texas A&M University

Tel: 979-862-3034

 

Dr. B. Fahimi

Department of Electrical & Computer Engineering

University of Missouri- Rolla

Rolla, MO 65409-040

Tel: 573-341-4543

 

Abstract :  Survivability turns into a vital necessity in land, sea, and air vehicles. Over the past decade we have witnessed the appearance of new concepts such as "Drive by Wire", more electric vehicles, and hybrid propulsion all of which demand high levels of tolerance in the event of failures. At a component level, failures may occur in sensors, support electronics, electric machines and power semiconductor devices. However, as power electronics modules become more prevalent in vehicles, one need to extend the concept of fault resilience into the system behavior. Power Electronics-based systems which comprise of interconnected power converters, motion devices, and conventional electronic loads form an adequate framework for study of the system survivability in modern vehicles. In both cases, the main objective is to compensate for the failure and still operate, to the best extent possible.  In order to attain a survivable operation the following steps should be taken:

• Monitoring of the status for various elements of the system.

• Detection of anomalies and disengagement of the faulty parts/subsystems.

• Reconfiguration of the remaining hardware based on a hierarchical approach.

• Development of a prioritization table based on which certain low impact loads can be removed to secure the overall stability of the power electronics system in the vehicle.

The present seminar addresses the issue and solutions for fault tolerance and survivability for electromechanical motion devices and power electronics based system architectures as used in land, sea, and air vehicles. The proposed seminar explores various steps in development of fault tolerant motor drive solutions. This includes a systematic review of detection and diagnosis of failures in induction, permanent magnet, synchronous machines, and their power electronics inverters and sensory systems. We will then introduce the methodologies for automatic reconfiguration of control hardware and software. In addition, issues related to stability assessment in multi-converter power electronics based systems such as negative impedance, reconfiguration of the system, and nonlinear control strategies will be addressed. This seminar is designed to provide a physically insightful version of the topic for its audience.

 

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Software Scalable System on Chip: Reconfigurable, Real-Time, and High Performance Solution for Embedded Space (Thursday, Jan 15, 0800:1200)

Vipin Chaudhary

Associate Director, Institute for Scientific Computing

Wayne State University

Phone: 313 577 5421

Email: vipin@wayne.edu

 

Abstract: Increasingly, today’s embedded and system-level chips are multiprocessors (Texas Instruments, Motorola, IBM, Infineon, NEC, Toshiba, Philips, etc.). Moreover, these multiprocessors are usually cores of RISC (Reduced Instruction Set Architecture) and DSP (Digital Signal Processing) engines. The Software Scalable System on Chip (3SoC) from Cradle Technologies, Inc. is a single-chip computing platform that combines the classic microprocessor, micro-controller, and digital signal processor chip families. 3SoC permits a broad range of streaming applications (like high-speed secure networking, imaging, graphics, multimedia, digital video & communications) to be created entirely in software. This permits tremendous design economies through simplified design, software re-use and support from third-party software-solution providers. In addition, the 3SoC architecture yields immediate 1-to-2 orders of magnitude increase in performance, and a similar reduction in cost, and design effort over existing approaches. Another unique aspect of 3SoC is its programmable I/O that enables any I/O to be done entirely in software. For the first time, software development methodologies can be utilized and still guarantee real time performance. Solutions can now be realized much faster because intellectual property will be developed, reused, and recombined, much more efficiently and cost effectively. In the short term, this reduces time to market significantly, and solves many of the integration problems that exist today. In the long run, multiple products and product lines can be developed quickly and at a fraction of the cost. In a nutshell, 3SoC can be looked as a reconfigurable processor that is cheaper, higher performing, and easier to use than FPGAs. In this workshop, we will cover the architecture, programmability, and tools for 3SoC.

 

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Electric and Hybrid Vehicles (Thursday, Jan 15, 0800:1200)

Chris Mi, Ph.D

Department of Electrical and Computer Engineering

University of Michigan - Dearborn

E-mail: chrismi@umich.edu

Tel: (313) 583-6434

 

Abstract:  The material of this workshop comes from the instructor’s teaching experience of a graduate course "Electric and Hybrid Vehicles" at the University of Michigan - Dearborn. Vehicles with electric or hybrid powertrains are more fuel-efficient and environment friendly compared with conventional vehicles that are driven by internal combustion engines (ICE) alone. In EVs, energy transfer efficiency can be as high as 90%, compared to typical 25% efficiency of ICE. In HEVs, by optimizing the power intake of hybrid vehicles, the engine operation will be kept within the range designed for best fuel economy and lowest emission, while the motor/generator system will either provide additional power input or recover the kinetic energy in braking or coasting. Because of these advantages, hybrid vehicles have attracted worldwide development interests in the automotive industry. EVs and HEVs will become more and more popular in the market as the related technology matures. The development of EV and HEV technologies and vehicles will have a profound impact on the automotive industry and the future economy of the USA. It is a great opportunity for automotive, electrical, mechanical and system engineers to update their knowledge in the fast growing automotive field. This one-day workshop will cover the basics of EV and HEV technologies. In an easy-tounderstand format, we will explain engineering of EV/HEV, components of EV/HEV, modeling and simulation of EV/HEV. Examples of existing EV/HEV models, such as Toyota Prius, Toyota Hybrid Minivan, Honda Civic, Ford Escape, and some fuel cell vehicle models will be studied. 

 

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Ad-Hoc Networks And A New GPS Measurement Technology for Robotic Follower Applications  (Thursday, Jan 15, 1300:1700)

Syed Masud Mahmud, Ph.D.

Electrical and Computer Engineering Department

Wayne State University, Detroit MI 48202

Phone: 313-577-3855,

Email: smahmud@eng.wayne.edu

 

Abstract: Applications of unmanned vehicles can increase combat effectiveness and personnel safety. These include reconnaissance, surveillance, target acquisition, logistics, minefield and other obstacle detection, explosive disposal, physical security, and operations in contaminated environments [1]. Better communication and GPS technologies are necessary for a convoy of unmanned vehicles to accurately follow a lead-vehicle. The vehicles of a convoy need reliable and secure communication links to exchange information in real-time. The vehicles of a convoy also need better technology to accurately measure distances between them and the lead-vehicle. The error introduced in position measurement of a vehicle, using standard GPS receivers can be as much as 100 meters. Hence, the distance error between the lead-vehicle and a follower, introduced by standard GPS receivers can be as high as 200 meters [2]. Thus, distance measurement using standard GPS receivers is not acceptable for robotic follower applications. Differential GPS receivers can be used to reduce the distance error between the lead-vehicle and the followers. Measurements using differential GPS receivers require GPS ground stations after every couple of hundred miles. But, GPS ground stations may not be readily available in a battlefield. Thus, distance measurement using differential GPS receivers is not possible in a battlefield. In this workshop, a new technique of distance measurement using two cooperative standard GPS receivers will be presented. Numerical results show that the accuracy in distance measurement using the new technique is as good as that using the differential GPS receivers [3]. But, a reliable and secure wireless link is necessary for the GPS receivers to cooperate with each other. This workshop will also present some techniques for building secure ad hoc communication links among a convoy of vehicles.

 

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UWB Radar Applications (Thursday, Jan 15, 0800:1700)

Adrian Jennings

Time Domain Corp.

 

Abstract: This workshop explores the application of Ultrawideband (UWB)  Radio to Terrain Mapping Radar.  This capability will enhance the off-road operations of autonomous systems by providing the capabilty to map travel surfaces that are hidden from view by vegetation or other obstructions.  This workshop will emphasize both theoretical underpinnings of UWB and practical issues associated with implementation.

 

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Methods and Techniques for Simulation and Prototyping (Friday, Jan 16, 0800:1200)

G. E. Smid, Ph.D

128 SEB, SECS, Oakland University

ph. (248) 370-2082

smid@oakland.edu

 

Abstract: Simulation techniques are increasingly becoming a significant tool for design and evaluation of control systems. The advantage of simulation is the cost and time saving for numerous test scenarios, the additional availability of test points over a physical prototype and the insight into the dynamics and characteristics of the system itself.  The wide application area for simulation technologies demands significant expertise of all aspects of simulation, whether mechanical, electrical, mathematical or computer science. Knowledge of the system to be simulated is typically compiled in a model of a simulation toolset. Different software tools are available for different application requirements. The benefits that can be achieved by using simulation techniques are completely dependent on the proper use and interpretation of the simulation results. Predictions from a simulation exercise can easily be overestimated, and likewise, critical results can be overlooked if they are not being considered in the evaluations. Therefore it is important to carefully define the procedures for incorporating simulation techniques in the research and development process of a system. A Special application area is in the functional performance prediction of real-time embedded systems. High-level system performance, and failure mode analysis of autonomous vehicles for example, require special techniques for modeling and simulation. These will be discussed and an example simulation example will be demonstrated. Other application areas require a simulation environment to be hosted on a network structure, and be accessible for numerous simulation host stations. Requirements and various network configurations and protocols will be discussed. Specifically the HLA architecture will be presented and the pro’s and con’s discussed. The presentation will conclude with an overview of applications and future outlook.

 

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Surface Denoising of Polygonal Meshes for Feature Recognition and Shape Matching (Friday, Jan 16, 0800:1200)

Jie Shen, Ph.D.

University of Michigan - Dearborn

Email: shen@umich.edu

Phone: (313) 593-5940.

 

Abstract:  3D objects obtained from different sensors inevitably contain certain amount of noises. This is particularly true in the situation of wartime or other emergent cases. How to effectively remove these noises is a crucial issue for the success of shape matching in security checking or pattern recognition in computer vision.  This talk will first review all major existing algorithms in the area of surface smoothing or denoising,  and point out the strength and weakness of each approach.  Then, a new high-accuracy denoising algorithm for 3D objects will be introduced.  It has a better accuracy in terms of both surface normal and geometric distance than existing published algorithms such as mean filter, median filter, bilateral filter, mean curvature flow, volume-preserved Laplacian and Gaussian filter.  Our approach consists of three key components: a) a second-order predicator; b) feature-preserving smoothing; c) a surface noise predicator.  Various numerical experiments have been conducted to show the effectiveness of our approach. Some typical test results will be demonstrated in this talk.

 

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Application of Commercial Network Measuring/Monitoring Practice to Battlefield Information Management (Friday, Jan 16, 0800:1200)

Ece Yaprak, Ph.D.,

College of Engineering

Wayne State University

phone: 313-577-8075

yaprak@eng.wayne.edu

 

Abstract :  In future combat systems, the flow of information between tactical and strategic elements will increase exponentially.  These elements will be interconnected with hybrid wireless-wired networks.  Some of this information will be critical in the sense that unreliable or untimely delivery can result in mission failure or degraded outcomes.  As these trends emerge, it is necessary to develop a clearer understanding of network performance and how to appropriately measure performance.  There are different network management functions such as network monitoring, trend analysis, and capacity planning:  Network Monitoring is the process of measuring the network performance metrics to assure the quality of service (QoS) and network capacity is within predetermined boundaries for both wired and wireless networks. Trend Analysis is a long term monitoring and reporting service for the entire network infrastructure based on a historical performance data. Capacity Planning, on the other hand, exploits growth in information management and involves modeling and simulating different network alternatives for future combat systems.

 

Currently, there are various network monitoring and management tools, such as Cisco Works, Tivoli, Sniffer, Statscout, etc. In addition, there are open source management tools, which are very competitive to commercial packages with similar feature sets, such as Multi Router Traffic Grapher (MRTG), Big Brother, Ethereal, WhatsUpGold, etc. Such tools are also used to warn the network support team when the behavior of the network indicates a problem or an unexpected change in the network, much before user complaints of unavailable and/or malfunctioning service arrive.  This workshop will give an overview of network management solutions in terms of exploding growth in information management between various Army resources in a hybrid wireless-to-wired network infrastructure. Various practical case studies will be completed.

   

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