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Title Date Added Company

Making the Grade: Mission Critical Radios Give University Police the Dependable Communications Needed for a Safer Campus 2008-03-01 Motorola

ASU has four campuses. There are currently 65,000 students and there are plans to expand to 90 or 95,000 students in the next 10 to 15 years. ASU had a VHF conventional system originally designed for one campus. It had components that were 20-25 years old. The department started looking at replacing the old system about five years ago. They were looking for greater reliability and greater coverage in the buildings. It was also apparent that the department needed greater interoperability with the surrounding agencies. The turning point was Virginia Tech.

Tags: Mobile - Wireless Communications,

Designed a Feature-Rich Satellite Handset With Mobile Handset Form Factor to Enable Nera Satcom to Expand Their Market Reach 2008-01-26 MindTree Consulting

MindTree Consulting designed an advanced satellite handset for a Norway-based communication equipment supplier, Nera SatCom. MindTree's extensive knowledge in designing and engineering handheld devices, combined with its expertise in building UI frameworks and MMI, helped Nera SatCom in developing a compact and feature-rich handset. The handset has communication access via the Inmarsat network and featured high quality audio and remote software version up-gradation. With the reengineered satellite handset with mobile handset form factor design and features, Nera Satcom would be able to increase market acceptability and expand its target customer base.

Tags: Mobile - Wireless Communications

Microsoft Online Services Customer Story: British Petroleum 2007-11-14 Microsoft Tips

For BP, time was of the essence in ensuring the safety of its facilities and 1,500 employees in its Gulf of Mexico Strategic Performance Unit. It is responsible for a complex mix of assets that includes eight deep-water oil production and drilling platforms that feed thousands of miles of pipelines and more than 100 fuel terminals and offices. When Hurricane Katrina struck, BP needed quick access to accurate storm information and a complete understanding of its people and facilities. After Hurricane Katrina, BP decided to implement the Hurricane Management System that combines the 3-D satellite imagery of Microsoft Virtual Earth mapping software and real-time weather data with a visual, real-life representation of both BP's people and facilities.

Tags: Asset Management

Automated Sports Blackouts Via Satellite 2007-09-01 Motorola

For a national broadcaster with the breadth of sports programming like ESPN, managing the complexity of blacking out specific games in markets of varying configurations is a daily challenge. Blackouts refer to a contractual agreement between media organizations like ESPN and sports leagues that prevents programming from being aired in certain areas in an effort to bolster other interests - local ticket sales, local sports operations, regional sports networks or locally oriented subscription services. During the last decade ESPN has worked with its vendors to develop an automatic blackout control solution, including an Integrated Receiver Decoder (IRD) system that can do satellite port switching and retunes without any intervention on the part of its affiliates.

Using NASA's World Wind Component in Your Java Technology Applications 2007-07-01 Sun Microsystems

World Wind is open-source software, developed by the National Aeronautics and Space Administration (NASA) that allows the user to zoom from satellite altitude into any place on earth. Leveraging Landsat satellite imagery and Shuttle Radar Topography Mission (SRTM) data, World Wind lets the user experience any part of earth's terrain in visually rich 3D form, just as if one were really there. For instance, one can use World Wind to zoom in on the Himalayas or Mount Saint Helens. The combination of Landsat 7 imagery with SRTM data allows World Wind to display dramatic views of the earth at eye level. Users can literally fly across the world in any direction.

Tags: Java, Linux - Open Source

Design & Implementation of a Video Terminal for Satellite-Based Packet Network 2006-10-25 Aricent

The customer is a leading provider of broadband satellite network solutions operating a next generation broadband satellite network. The company wanted to develop and implement an efficient video terminal for a satellite-based packet network. The challenge was to enhance the end user experience by optimizing the media transport to reduce the end-to-end delay, packet loss, and jitter and evaluate and optimize H.264 algorithms for Continuous Presence (CP) mode conferencing. The company deployed an end-to-end solution spanning simulation, development, and testing of video stitching for H.261, H.263, and H.264 codecs. There was development of device drivers for DSP peripherals, the bootloader, and the interface between the Control Processor and the DSP.

Tags: Broadband, Network Design

Projects in GSM/GMPCS Domain 2006-10-17 Aricent

Modern satellite communication systems assignment focused on 'Mobile Satellite Communication Systems' was entrusted upon Aricent, by HNS. As always Aricent accepted the challenge of foraying into a new technology domain, which gave Aricent the opportunities of developing expertise on various protocol layers of modern satellite communication systems. The main modules, which Aricent was principally responsible for included developing software solutions for-Satellite, base Station, GSM Network Management Solution, Handset Software Development and Multi-mode Handset Software. Aricent's team used OO tools for network management software and simulator software development. Tools included Rational Rose for capturing OO Designs and Visual Workshop for C++. Platforms used were SUN and HP Unix workstations and servers.

Tags: Network Design, GSM

Testing of Satellite-Based Mobile Communication System 2006-03-10 Aricent

The Testing of Satellite-based Mobile Communication System was undertaken for a customer in USA. The customer was implementing the Base Station Sub System for a satellite based GSM system. The assignment provided a challenging task of testing complex Air Interface Specifications and Ground Sub System. Aricent also had the full responsibility for System Verification Testing, Release Testing and Customer Witnessed Testing. An in-depth knowledge of GSM technology coupled with a comprehensive Air Interface domain knowledge enabled Aricent to provide an exhaustive testing solution to the customer. Aricent was involved right from the Requirements, Integration, Release Testing and Customer Witnessed Testing of the Air Interface and the Ground Segment SUB System.

Tags: GSM, Mobile - Wireless Communications

Anonymous Data Broadcasting by Misuse of Satellite ISPs 2005-12-01 University of Bochum

Satellite ISPs connect users to the Internet by means of satellite communication. This paper discusses how to misuse satellite ISPs to allow any subscribed user to broadcast arbitrary content to a group of anonymous receivers. Exploiting the fact that the satellite downstream signal, containing the data requested by a user, is not only sent to this specific user only, but can be received in the whole footprint of the satellite the paper shows how to broadcast certain data for an unlimited number of potential receivers. The paper concludes with open issues and future strands of work, such as sender anonymity.

Tags: ISPs

Scalable TCP Over Satellite Links: Performance Issues and Cross-Layer Design 2005-07-15 University of Siena

This paper analyzes some issues related to the performance of a recently proposed TCP enhancement, Scalable TCP (S-TCP), over satellite links. First S-TCP features and assesses its performance in satellite networks are discussed, by means of numerical simulations, for a wide range of conditions (fixed users, mobile users, and rainy days). Then, the paper analyzes the impact of S-TCP protocol parameters in a satellite environment, and provides guidelines for their setting in order to improve the system performance. Finally, it presents some possible enhancements deriving from the adoption of erasure codes at the link level (in a cross-layer perspective). In particular, TCP/FEC interactions are analyzed and the optimal operating point is derived.

Tags: TCP - IP,

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Title	Date Added	Company
Making the Grade: Mission Critical Radios Give University Police the Dependable Communications Needed for a Safer Campus	2008-03-01	Motorola
ASU has four campuses. There are currently 65,000 students and there are plans to expand to 90 or 95,000 students in the next 10 to 15 years. ASU had a VHF conventional system originally designed for one campus. It had components that were 20-25 years old. The department started looking at replacing the old system about five years ago. They were looking for greater reliability and greater coverage in the buildings. It was also apparent that the department needed greater interoperability with the surrounding agencies. The turning point was Virginia Tech. Tags: Mobile - Wireless Communications,
Designed a Feature-Rich Satellite Handset With Mobile Handset Form Factor to Enable Nera Satcom to Expand Their Market Reach	2008-01-26	MindTree Consulting
MindTree Consulting designed an advanced satellite handset for a Norway-based communication equipment supplier, Nera SatCom. MindTree's extensive knowledge in designing and engineering handheld devices, combined with its expertise in building UI frameworks and MMI, helped Nera SatCom in developing a compact and feature-rich handset. The handset has communication access via the Inmarsat network and featured high quality audio and remote software version up-gradation. With the reengineered satellite handset with mobile handset form factor design and features, Nera Satcom would be able to increase market acceptability and expand its target customer base. Tags: Mobile - Wireless Communications
Microsoft Online Services Customer Story: British Petroleum	2007-11-14	Microsoft Tips
For BP, time was of the essence in ensuring the safety of its facilities and 1,500 employees in its Gulf of Mexico Strategic Performance Unit. It is responsible for a complex mix of assets that includes eight deep-water oil production and drilling platforms that feed thousands of miles of pipelines and more than 100 fuel terminals and offices. When Hurricane Katrina struck, BP needed quick access to accurate storm information and a complete understanding of its people and facilities. After Hurricane Katrina, BP decided to implement the Hurricane Management System that combines the 3-D satellite imagery of Microsoft Virtual Earth mapping software and real-time weather data with a visual, real-life representation of both BP's people and facilities. Tags: Asset Management
Automated Sports Blackouts Via Satellite	2007-09-01	Motorola
For a national broadcaster with the breadth of sports programming like ESPN, managing the complexity of blacking out specific games in markets of varying configurations is a daily challenge. Blackouts refer to a contractual agreement between media organizations like ESPN and sports leagues that prevents programming from being aired in certain areas in an effort to bolster other interests - local ticket sales, local sports operations, regional sports networks or locally oriented subscription services. During the last decade ESPN has worked with its vendors to develop an automatic blackout control solution, including an Integrated Receiver Decoder (IRD) system that can do satellite port switching and retunes without any intervention on the part of its affiliates.
Using NASA's World Wind Component in Your Java Technology Applications	2007-07-01	Sun Microsystems
World Wind is open-source software, developed by the National Aeronautics and Space Administration (NASA) that allows the user to zoom from satellite altitude into any place on earth. Leveraging Landsat satellite imagery and Shuttle Radar Topography Mission (SRTM) data, World Wind lets the user experience any part of earth's terrain in visually rich 3D form, just as if one were really there. For instance, one can use World Wind to zoom in on the Himalayas or Mount Saint Helens. The combination of Landsat 7 imagery with SRTM data allows World Wind to display dramatic views of the earth at eye level. Users can literally fly across the world in any direction. Tags: Java, Linux - Open Source
Design & Implementation of a Video Terminal for Satellite-Based Packet Network	2006-10-25	Aricent
The customer is a leading provider of broadband satellite network solutions operating a next generation broadband satellite network. The company wanted to develop and implement an efficient video terminal for a satellite-based packet network. The challenge was to enhance the end user experience by optimizing the media transport to reduce the end-to-end delay, packet loss, and jitter and evaluate and optimize H.264 algorithms for Continuous Presence (CP) mode conferencing. The company deployed an end-to-end solution spanning simulation, development, and testing of video stitching for H.261, H.263, and H.264 codecs. There was development of device drivers for DSP peripherals, the bootloader, and the interface between the Control Processor and the DSP. Tags: Broadband, Network Design
Projects in GSM/GMPCS Domain	2006-10-17	Aricent
Modern satellite communication systems assignment focused on 'Mobile Satellite Communication Systems' was entrusted upon Aricent, by HNS. As always Aricent accepted the challenge of foraying into a new technology domain, which gave Aricent the opportunities of developing expertise on various protocol layers of modern satellite communication systems. The main modules, which Aricent was principally responsible for included developing software solutions for-Satellite, base Station, GSM Network Management Solution, Handset Software Development and Multi-mode Handset Software. Aricent's team used OO tools for network management software and simulator software development. Tools included Rational Rose for capturing OO Designs and Visual Workshop for C++. Platforms used were SUN and HP Unix workstations and servers. Tags: Network Design, GSM
Testing of Satellite-Based Mobile Communication System	2006-03-10	Aricent
The Testing of Satellite-based Mobile Communication System was undertaken for a customer in USA. The customer was implementing the Base Station Sub System for a satellite based GSM system. The assignment provided a challenging task of testing complex Air Interface Specifications and Ground Sub System. Aricent also had the full responsibility for System Verification Testing, Release Testing and Customer Witnessed Testing. An in-depth knowledge of GSM technology coupled with a comprehensive Air Interface domain knowledge enabled Aricent to provide an exhaustive testing solution to the customer. Aricent was involved right from the Requirements, Integration, Release Testing and Customer Witnessed Testing of the Air Interface and the Ground Segment SUB System. Tags: GSM, Mobile - Wireless Communications
Anonymous Data Broadcasting by Misuse of Satellite ISPs	2005-12-01	University of Bochum
Satellite ISPs connect users to the Internet by means of satellite communication. This paper discusses how to misuse satellite ISPs to allow any subscribed user to broadcast arbitrary content to a group of anonymous receivers. Exploiting the fact that the satellite downstream signal, containing the data requested by a user, is not only sent to this specific user only, but can be received in the whole footprint of the satellite the paper shows how to broadcast certain data for an unlimited number of potential receivers. The paper concludes with open issues and future strands of work, such as sender anonymity. Tags: ISPs
Scalable TCP Over Satellite Links: Performance Issues and Cross-Layer Design	2005-07-15	University of Siena
This paper analyzes some issues related to the performance of a recently proposed TCP enhancement, Scalable TCP (S-TCP), over satellite links. First S-TCP features and assesses its performance in satellite networks are discussed, by means of numerical simulations, for a wide range of conditions (fixed users, mobile users, and rainy days). Then, the paper analyzes the impact of S-TCP protocol parameters in a satellite environment, and provides guidelines for their setting in order to improve the system performance. Finally, it presents some possible enhancements deriving from the adoption of erasure codes at the link level (in a cross-layer perspective). In particular, TCP/FEC interactions are analyzed and the optimal operating point is derived. Tags: TCP - IP,