France Telecom

Displaying 1-8 of 8 results

  • White Papers // May 2012

    Enriched IPTV Services Personalization

    The advances in IPTV (Internet Protocol TeleVision) technology enable new user-centric and interactive TV model, in which context-awareness is promising in making users' interaction with the TV dynamic and transparent. This paper deals with the problem of achieving user-centric personalized IPTV services applying context-awareness. The authors present a solution for...

    Provided By France Telecom

  • White Papers // Apr 2012

    Adding Self-Scaling Capability to the Cloud to Meet Service Level Agreements

    Cloud computing raises many issues about Virtualization and Service-Oriented Architecture (SOA). Topics to be addressed regarding services in Cloud computing environment include contractualization, monitoring, management, and autonomic management. Cloud computing promotes a \"Pay-per-use\" business model. It should enable to reduce costs but requires flexible services than can be adapted, e.g.,...

    Provided By France Telecom

  • White Papers // Mar 2012

    Network Capacity Enhancement of OFDMA System Using Self-Organized Femtocell Off-Load

    As plug-and-play devices, femtocells are expected to be self-managed, empowered by self-organization functionalities. This paper presents a Self-Organizing Networks (SON) process for off-loading macrocell traffic towards Open Subscriber Group (OSG) femtocells. The off-loading process comprises two SON functionalities: the first configures the femtocell transmitted pilot power, which depends on the...

    Provided By France Telecom

  • White Papers // Jan 2010

    Impact of Peer-to-Peer Applications on Wide Area Network Traffic: An Experimental Approach

    To evaluate the impact of peer-to-peer applications on traffic in wide area IP networks, authors analyze measurements from a high speed backbone link carrying TCP traffic towards several ADSL areas. The first observations are that the prevalent part of traffic is due to peer-to-peer applications (almost 80% of total traffic)...

    Provided By France Telecom

  • White Papers // Jan 2010

    Comparing Flow-Aware and Flow-Oblivious Adaptive Routing

    This paper compares two approaches to realizing adaptive routing in the Internet: flow-oblivious multi-path routing using optimal end-to-end congestion control and flow-aware routing using fair queueing to share bandwidth on one or several paths. Multi-path congestion control provides ideal performance, assuming protocols can be designed to approximate the optimal fluid...

    Provided By France Telecom

  • White Papers // Oct 2009

    Modulation Diversity in Wideband In-Home PLC

    The power line channel is characterized by a multi-path behavior. A direct consequence is that Multi-Carrier Modulation (MCM) is generally retained for Power Line Communication (PLC). In addition to OFDM, or equivalently DMT, Wavelet OFDM and OFDM/OQAM have been recently proposed for PLC transmission. In fact, every scheme has its...

    Provided By France Telecom

  • White Papers // Oct 2009

    HS-OQAM PLC: Long Filter or Equalizer?

    This paper addresses a theoretical analysis on OFDM/OQAM based transmission in PLC. The authors reveal that Inter-Carrier Interference (ICI) may be a predominant factor to limit the performance comparing with inter-symbol interference (ISI) when the channel has frequency selective behavior. Thus, for the filter design task, more attentions should be...

    Provided By France Telecom

  • White Papers // Dec 2008

    TCP WELCOME TCP Variant for Wireless Environment, Link Losses, and COngestion Packet Loss ModEls

    The problem of TCP and all its existing variations within MANETs resides in its inability to distinguish between different data packet loss causes. Thus, TCP has not always the optimum behaviour in front of packet losses which might cause network performance degradation and resources waste. Multiple Loss Differentiation Algorithms (LDAs)...

    Provided By France Telecom

  • White Papers // Dec 2008

    TCP WELCOME TCP Variant for Wireless Environment, Link Losses, and COngestion Packet Loss ModEls

    The problem of TCP and all its existing variations within MANETs resides in its inability to distinguish between different data packet loss causes. Thus, TCP has not always the optimum behaviour in front of packet losses which might cause network performance degradation and resources waste. Multiple Loss Differentiation Algorithms (LDAs)...

    Provided By France Telecom

  • White Papers // May 2012

    Enriched IPTV Services Personalization

    The advances in IPTV (Internet Protocol TeleVision) technology enable new user-centric and interactive TV model, in which context-awareness is promising in making users' interaction with the TV dynamic and transparent. This paper deals with the problem of achieving user-centric personalized IPTV services applying context-awareness. The authors present a solution for...

    Provided By France Telecom

  • White Papers // Mar 2012

    Network Capacity Enhancement of OFDMA System Using Self-Organized Femtocell Off-Load

    As plug-and-play devices, femtocells are expected to be self-managed, empowered by self-organization functionalities. This paper presents a Self-Organizing Networks (SON) process for off-loading macrocell traffic towards Open Subscriber Group (OSG) femtocells. The off-loading process comprises two SON functionalities: the first configures the femtocell transmitted pilot power, which depends on the...

    Provided By France Telecom

  • White Papers // Jan 2010

    Impact of Peer-to-Peer Applications on Wide Area Network Traffic: An Experimental Approach

    To evaluate the impact of peer-to-peer applications on traffic in wide area IP networks, authors analyze measurements from a high speed backbone link carrying TCP traffic towards several ADSL areas. The first observations are that the prevalent part of traffic is due to peer-to-peer applications (almost 80% of total traffic)...

    Provided By France Telecom

  • White Papers // Jan 2010

    Comparing Flow-Aware and Flow-Oblivious Adaptive Routing

    This paper compares two approaches to realizing adaptive routing in the Internet: flow-oblivious multi-path routing using optimal end-to-end congestion control and flow-aware routing using fair queueing to share bandwidth on one or several paths. Multi-path congestion control provides ideal performance, assuming protocols can be designed to approximate the optimal fluid...

    Provided By France Telecom

  • White Papers // Oct 2009

    Modulation Diversity in Wideband In-Home PLC

    The power line channel is characterized by a multi-path behavior. A direct consequence is that Multi-Carrier Modulation (MCM) is generally retained for Power Line Communication (PLC). In addition to OFDM, or equivalently DMT, Wavelet OFDM and OFDM/OQAM have been recently proposed for PLC transmission. In fact, every scheme has its...

    Provided By France Telecom

  • White Papers // Oct 2009

    HS-OQAM PLC: Long Filter or Equalizer?

    This paper addresses a theoretical analysis on OFDM/OQAM based transmission in PLC. The authors reveal that Inter-Carrier Interference (ICI) may be a predominant factor to limit the performance comparing with inter-symbol interference (ISI) when the channel has frequency selective behavior. Thus, for the filter design task, more attentions should be...

    Provided By France Telecom

  • White Papers // Apr 2012

    Adding Self-Scaling Capability to the Cloud to Meet Service Level Agreements

    Cloud computing raises many issues about Virtualization and Service-Oriented Architecture (SOA). Topics to be addressed regarding services in Cloud computing environment include contractualization, monitoring, management, and autonomic management. Cloud computing promotes a \"Pay-per-use\" business model. It should enable to reduce costs but requires flexible services than can be adapted, e.g.,...

    Provided By France Telecom