The Experts below are selected from a list of 1350 Experts worldwide ranked by ideXlab platform

H.d. Clausen - One of the best experts on this subject based on the ideXlab platform.

  • TOPICS IN INTERNET TECHNOLOGY Internet over Direct Broadcast Satel I ites
    1999
    Co-Authors: H.d. Clausen, H. Linder
    Abstract:

    High-powered Direct Broadcast television Satellites can be used ABSTRACT to Broadcast high volumes of data Directly to home terminals. Using the telephone network or a similar low-speed network, an asymmetrical system can be implemented which offers interactive Internet services. Two such interactive data broad- cast systems are described which have been implemented as demonstration platforms for interactive multimedia services; one is based on digital subcarrier techniques for analog television channels, the other on the MPEG-2 and DVB standards. The architecture of the hardware and software is presented, particularly the solqtions available for carrying Inter- net datagrams over MPEG-2 transport systems. A multicast transport protocol with selectable reliability is described which is the basis of a generic distribution application. It exDloits the Dotential benefits of Direct Broadcast Satellites for delivering data to large groups of local caches.

  • Internet over Direct Broadcast Satellites
    IEEE Communications Magazine, 1999
    Co-Authors: H.d. Clausen, H. Linder, B. Collini-nocker
    Abstract:

    High-powered Direct Broadcast television Satellites can be used to Broadcast high volumes of data Directly to home terminals. Using the telephone network or a similar low-speed network, an asymmetrical system can be implemented which offers interactive Internet services. Two such interactive data Broadcast systems are described which have been implemented as demonstration platforms for interactive multimedia services; one is based on digital subcarrier techniques for analog television channels, the other on the MPEG-2 and DVB standards. The architecture of the hardware and software is presented, particularly the solutions available for carrying Internet datagrams over MPEG-2 transport systems. A multicast transport protocol with selectable reliability is described which is the basis of a generic distribution application. It exploits the potential benefits of Direct Broadcast Satellites for delivering data to large groups of local caches.

  • Internet services via Direct Broadcast Satellites
    1997 IEEE International Performance Computing and Communications Conference, 1
    Co-Authors: H.d. Clausen, B. Nocker
    Abstract:

    High-power Direct Broadcast Satellites (DBS) can be used to downlink high volumes of data and services available in the Internet Directly to home terminals. Setting up an asymmetric system, using the telephone network, a similar low speed terrestrial network or a satellite return link for accessing an Internet service provider (ISP) and using one or more channels on a DBS to transmit large amounts of data to the end user makes this system a high-speed interactive one. After implementation of a laboratory platform using a satellite simulator, the concept was implemented using an audio subcarrier of a standard TV transponder which provides a bit rate of 192 kbit/sec. This IDBS A system has successfully been used for implementing a set of applications and demonstrations. In the second phase, VSATs operating at between 64 Kbit/sec and 2Mbit/sec have been used for IDBS V. Initial tests using the upcoming DVB/MPEG-2 program stream for providing high speed multimedia Internet services via satellite (IDBS D) at data rates of 2 to 8 Mbit/sec were carried out successfully. This paper presents the architecture of the system hardware and software and reports on the performance observed for the various data services and applications available on IDBS A and IDBS V systems. It also comments on measurements and analyses of the systems performance and outlines the status of the ongoing developments for IDBS D.

B. Collini-nocker - One of the best experts on this subject based on the ideXlab platform.

  • Internet over Direct Broadcast Satellites
    IEEE Communications Magazine, 1999
    Co-Authors: H.d. Clausen, H. Linder, B. Collini-nocker
    Abstract:

    High-powered Direct Broadcast television Satellites can be used to Broadcast high volumes of data Directly to home terminals. Using the telephone network or a similar low-speed network, an asymmetrical system can be implemented which offers interactive Internet services. Two such interactive data Broadcast systems are described which have been implemented as demonstration platforms for interactive multimedia services; one is based on digital subcarrier techniques for analog television channels, the other on the MPEG-2 and DVB standards. The architecture of the hardware and software is presented, particularly the solutions available for carrying Internet datagrams over MPEG-2 transport systems. A multicast transport protocol with selectable reliability is described which is the basis of a generic distribution application. It exploits the potential benefits of Direct Broadcast Satellites for delivering data to large groups of local caches.

Amil Petrin - One of the best experts on this subject based on the ideXlab platform.

  • The Consumer Gains from Direct Broadcast Satellites and the Competition with Cable TV
    2014
    Co-Authors: Amil Petrin
    Abstract:

    This paper examines Direct Broadcast Satellites (DBS) as a competitor to cable. We first estimate a structural consumer level demand system for satellite, basic cable, pre-mium cable and local antenna using micro data on almost 30000 households in 317 markets, including extensive controls for unobserved product quality and allowing the distribution of unobserved tastes to follow a fully flexible multivariate normal distrib-ution. The estimated elasticity of expanded basic is about −15, with the demand for premium cable and DBS more elastic. The results identify strong correlations in the taste for different products not captured in conventional logit models. Estimates of the supply response of cable suggest that without DBS entry cable prices would be about 15 percent higher and cable quality would fall. We find a welfare gain of between $127 and $190 per year (aggregate $2.5 billion) for satellite buyers, and about $50 (ag-gregate $3 billion) for cable subscribers

  • THE CONSUMER GAINS FROM Direct Broadcast Satellites AND THE COMPETITION WITH CABLE TV
    Econometrica, 2004
    Co-Authors: Austan Goolsbee, Amil Petrin
    Abstract:

    This paper examines the introduction of Direct Broadcast Satellites as an alternative to cable television and the welfare gains such Satellites generated for consumers. The extent to which Satellites compete with cable has become an important issue in the debate over re-regulation of cable prices. We estimate a consumer level demand system for satellite, basic cable, premium cable and local antenna using extensive micro data on the television choices of more than 15,000 people as well as price and characteristics data on cable companies throughout the nation. The results indicate that, after properly controlling for unobservable product attributes and the endogeneity of prices, the Direct welfare gain to satellite buyers averages about $50 dollars per year or approximately $450 million annually in the aggregate. Estimates that do not control for unobserved attributes and endogenous prices overstate the welfare gains by almost a factor of fifteen. The price sensitivity of satellite to both its own price and the price of cable is extremely high. The price sensitivity of cable, however, is low, likely indicating that satellite is not a close substitute at the time of our sample.

  • The Consumer Gains from Direct Broadcast Satellites and the Competition with Cable Television
    National Bureau of Economic Research, 2001
    Co-Authors: Austan Goolsbee, Amil Petrin
    Abstract:

    This paper examines the introduction of Direct Broadcast Satellites as an alternative to cable television and the welfare gains such Satellites generated for consumers. The extent to which Satellites compete with cable has become an important issue in the debate over re-regulation of cable prices. We estimate a consumer level demand system for satellite, basic cable, premium cable and local antenna using extensive micro data on the television choices of more than 15,000 people as well as price and characteristics data on cable companies throughout the nation. The results indicate that, after properly controlling for unobservable product attributes and the endogeneity of prices, the Direct welfare gain to satellite buyers averages about $50 dollars per year or approximately $450 million annually in the aggregate. Estimates that do not control for unobserved attributes and endogenous prices overstate the welfare gains by almost a factor of fifteen. The price sensitivity of satellite to both its own price and the price of cable is extremely high. The price sensitivity of cable, however, is low, likely indicating that satellite is not a close substitute at the time of our sample.

  • Consumer Gains from Direct Broadcast Satellite and the Market Power of Cable
    2000
    Co-Authors: Austan Goolsbee, Amil Petrin
    Abstract:

    This paper uses an extensive micro data set on television viewing habits of 50,000 people to calculate the welfare gains from the introduction of Direct Broadcast Satellites as an alternative to cable television. To do so we use an empirical technique that combines information about the types of television service chosen with the decision of how many hours of the different kinds of television to watch. The results indicate that the introduction of home Satellites created a significant amount of consumer surplus. At market prices, we also find considerable price competition between satellite and cable

  • The Consumer Gains from Direct Broadcast Satellites and the Competition with Cable TV
    1
    Co-Authors: Austan Goolsbee, Amil Petrin
    Abstract:

    This paper examines Direct Broadcast Satellites (DBS) as a competitor to cable. We first estimate a structural consumer level demand system for satellite, basic cable, premium cable and local antenna using micro data on almost 30 , 000 households in 317 markets, including extensive controls for unobserved product quality and allowing the distribution of unobserved tastes to follow a fully flexible multivariate normal distribution. The estimated elasticity of expanded basic is about -1 . 5 , with the demand for premium cable and DBS more elastic. The results identify strong correlations in the taste for different products not captured in conventional logit models. Estimates of the supply response of cable suggest that without DBS entry cable prices would be about 15 percent higher and cable quality would fall. We find a welfare gain of between $127 and $190 per year (aggregate $2.5 billion) for satellite buyers, and about $50 (aggregate $3 billion) for cable subscribers. Copyright The Econometric Society 2004.

H. Linder - One of the best experts on this subject based on the ideXlab platform.

  • TOPICS IN INTERNET TECHNOLOGY Internet over Direct Broadcast Satel I ites
    1999
    Co-Authors: H.d. Clausen, H. Linder
    Abstract:

    High-powered Direct Broadcast television Satellites can be used ABSTRACT to Broadcast high volumes of data Directly to home terminals. Using the telephone network or a similar low-speed network, an asymmetrical system can be implemented which offers interactive Internet services. Two such interactive data broad- cast systems are described which have been implemented as demonstration platforms for interactive multimedia services; one is based on digital subcarrier techniques for analog television channels, the other on the MPEG-2 and DVB standards. The architecture of the hardware and software is presented, particularly the solqtions available for carrying Inter- net datagrams over MPEG-2 transport systems. A multicast transport protocol with selectable reliability is described which is the basis of a generic distribution application. It exDloits the Dotential benefits of Direct Broadcast Satellites for delivering data to large groups of local caches.

  • Internet over Direct Broadcast Satellites
    IEEE Communications Magazine, 1999
    Co-Authors: H.d. Clausen, H. Linder, B. Collini-nocker
    Abstract:

    High-powered Direct Broadcast television Satellites can be used to Broadcast high volumes of data Directly to home terminals. Using the telephone network or a similar low-speed network, an asymmetrical system can be implemented which offers interactive Internet services. Two such interactive data Broadcast systems are described which have been implemented as demonstration platforms for interactive multimedia services; one is based on digital subcarrier techniques for analog television channels, the other on the MPEG-2 and DVB standards. The architecture of the hardware and software is presented, particularly the solutions available for carrying Internet datagrams over MPEG-2 transport systems. A multicast transport protocol with selectable reliability is described which is the basis of a generic distribution application. It exploits the potential benefits of Direct Broadcast Satellites for delivering data to large groups of local caches.

B. Nocker - One of the best experts on this subject based on the ideXlab platform.

  • Internet services via Direct Broadcast Satellites
    1997 IEEE International Performance Computing and Communications Conference, 1
    Co-Authors: H.d. Clausen, B. Nocker
    Abstract:

    High-power Direct Broadcast Satellites (DBS) can be used to downlink high volumes of data and services available in the Internet Directly to home terminals. Setting up an asymmetric system, using the telephone network, a similar low speed terrestrial network or a satellite return link for accessing an Internet service provider (ISP) and using one or more channels on a DBS to transmit large amounts of data to the end user makes this system a high-speed interactive one. After implementation of a laboratory platform using a satellite simulator, the concept was implemented using an audio subcarrier of a standard TV transponder which provides a bit rate of 192 kbit/sec. This IDBS A system has successfully been used for implementing a set of applications and demonstrations. In the second phase, VSATs operating at between 64 Kbit/sec and 2Mbit/sec have been used for IDBS V. Initial tests using the upcoming DVB/MPEG-2 program stream for providing high speed multimedia Internet services via satellite (IDBS D) at data rates of 2 to 8 Mbit/sec were carried out successfully. This paper presents the architecture of the system hardware and software and reports on the performance observed for the various data services and applications available on IDBS A and IDBS V systems. It also comments on measurements and analyses of the systems performance and outlines the status of the ongoing developments for IDBS D.