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Institut Telecom
(27 results)-
White Papers
Toward a New Ad Hoc Node Design for Secure Service Deployment Over Ad Hoc Network
September 17, 2008, 12:00am PDT
Security in ad hoc networks is a major issue when it comes to real deployment of services over this sort of networks. A large amount of research effort was directed toward routing in ad hoc...
Provided by Institut Telecom
-
White Papers
Distributed Turbo-Like Codes for Multi-User Cooperative Relay Networks
October 12, 2009, 12:00am PDT
In this paper, a distributed turbo-like coding scheme for wireless networks with relays is proposed. The authors consider a scenario where multiple sources communicate with a single destination...
Provided by Institut Telecom
-
White Papers
Peer-to-Peer Time-Shifted Streaming Systems
November 6, 2009, 12:00am PST
In live streaming systems (IPTV, life-stream services, etc.), an attractive service consists in allowing users to access past portions of the stream. This is called a time-shifted streaming...
Provided by Institut Telecom
-
White Papers
Medical Image Integrity Control Combining Digital Signature and Lossless Watermarking
January 14, 2010, 12:00am PST
Enforcing protection of medical content becomes a major issue of computer security. Since medical contents are more and more widely distributed, it is necessary to develop security mechanism to...
Provided by Institut Telecom
-
White Papers
Cognitive Radio Research and Implementation Challenges
June 1, 2007, 12:00am PDT
Future mobile terminals will be able to communicate with various heterogeneous systems which are different by means of the algorithms used to implement baseband processing and channel coding. This...
Provided by Institut Telecom
-
White Papers
MUQAMI+: A Scalable and Locally Distributed Key Management Scheme for Clustered Sensor Networks
July 16, 2009, 12:00am PDT
Wireless Sensor Networks (WSN) is susceptible to node capture and many network levels attacks. In order to provide protection against such threats, WSNs require lightweight and scalable key...
Provided by Institut Telecom
-
White Papers
ReDEx: Receiver Diversity Exploitation Mechanism for 802.11 Wireless Networks
November 24, 2008, 12:00am PST
The authors' objective is to increase the individual throughput of each node in the network by exploiting neighbors with more favorable channel conditions in terms of bit rate and packet loss...
Provided by Institut Telecom
-
White Papers
An ID-Based Authentication Scheme for the IEEE 802.11s Mesh Network
May 15, 2010, 12:00am PDT
Nowadays authentication in Wireless Mesh Networks (WMN) refers to the 802.1X authentication methods or a Pre-shared key authentication, and makes use of certificates or shared secrets. In wireless...
Provided by Institut Telecom
-
White Papers
Robust Estimation of Noise Standard Deviation in Presence of Signals With Unknown Distributions and Occurrences
November 18, 2011, 12:00am PST
In many applications, d-dimensional observations result from the random presence or absence of random signals in independent and additive white Gaussian noise. An estimate of the noise standard...
Provided by Institut Telecom
-
White Papers
A Maximum Entropy Framework for Statistical Modeling of Underwater Acoustic Communication Channels
March 16, 2010, 12:00am PDT
Based on a method of inductive inference known as the principle of maximum entropy, a time-varying underwater acoustic channel model is derived. The resulting model is proved to be consistent so...
Provided by Institut Telecom
-
White Papers
Blind Noise Variance Estimation for OFDMA Signals
January 16, 2009, 12:00am PST
The authors present two new noise variance estimation methods for OFDMA signals transmitted through an unknown multipath fading channel. They focus on blind estimation as it does not require any...
Provided by Institut Telecom
-
White Papers
OFDM System Identification for Cognitive Radio Based on Pilot-Induced Cyclostationarity
September 22, 2008, 12:00am PDT
In the context of cognitive radio, this paper addresses the challenge of OFDM system identification. The authors show that it is possible to take advantage of pilot tone structures to perform...
Provided by Institut Telecom
-
White Papers
Cooperative Communication for Wireless Sensors Network : A Mac Protocol Solution
July 11, 2008, 12:00am PDT
This paper proposes a new Mac layer scheme (WSC-MAC) for Wireless Sensor Network (WSN) improving the overall the network reliability by using cooperative communication. The authors focus their...
Provided by Institut Telecom
-
White Papers
Adopting IMS in WiFi Technology
December 15, 2007, 12:00am PST
IP Multimedia Subsystem which is standardized by 3GPP is an important step to improve the delivery of innovating IPTelephony and Multimedia services to the customers in 3G and B3G networks....
Provided by Institut Telecom
-
White Papers
Inter-Domain QoS Control Mechanism in IMS Based Horizental Converged Networks
February 10, 2007, 12:00am PST
IP Multimedia Subsystem standardized by 3GPP has attracted the endorsement of other network technology providers. IMS is the most complete IP base service control and management overlay (using...
Provided by Institut Telecom
-
White Papers
Handover Criteria Considerations in Future Convergent Networks
August 2, 2006, 12:00am PDT
Design of Handover mechanisms in converged wireless and wire-line networks where different access technologies overlap are challenging. As the first step, defining the handover criteria for...
Provided by Institut Telecom
-
White Papers
Secure Geo-Localization of Wireless Sensor Nodes in the Presence of Misbehaving Anchor Nodes
October 16, 2010, 12:00am PDT
Geo-localization of nodes in a Wireless Sensor Network (WSN) is a process that allows location-unaware nodes to discover their spatial coordinates. This process requires the cooperation of all the...
Provided by Institut Telecom
-
White Papers
The Green-Game: Striking a Balance Between QoS and Energy Saving
January 13, 2011, 12:00am PST
The energy consumed by communication networks can be reduced in several ways. A promising technique consists in concentrating the workload of an infrastructure on a reduced set of devices, while...
Provided by Institut Telecom
-
White Papers
Apple-to-Apple: A Framework Analysis for Energy-Efficiency in Networks
May 28, 2010, 12:00am PDT
Research on energy-efficiency in and through communication networks has already gained the attention of a broad research community. Specifically, the authors consider efforts towards improving...
Provided by Institut Telecom
-
White Papers
Apple-to-Apple: A Common Framework for Energy-Efficiency in Networks
March 1, 2011, 12:00am PST
Research on energy-efficiency in and through communication networks has already gained the attention of a broad research community. Specifically, the authors consider efforts towards improving...
Provided by Institut Telecom
-
White Papers
Multi Group Key Agreement Mechanism for Mobile P2P Wireless Networks
November 26, 2011, 12:00am PST
Secure and efficient communication among a set of mobile nodes is one of the most important aspect in P2P wireless networks. Security of various group-oriented applications requires a group secret...
Provided by Institut Telecom
-
White Papers
Energy-Awareness in Network Dimensioning: A Fixed Charge Network Flow Formulation
March 22, 2010, 12:00am PDT
Reduction of unnecessary energy consumption is becoming a major concern in wired networking, in reason of both the potential economical benefits and its forecast environmental impact. These...
Provided by Institut Telecom
-
White Papers
Distributed Algorithms for Green IP Networks
January 26, 2012, 12:00am PST
The authors propose a novel distributed approach to exploit sleep mode capabilities of links in an Internet Service Provider network. Differently from other works, neither a central controller,...
Provided by Institut Telecom
-
White Papers
Tailored Shielding and Bypass Testing of Web Applications
March 24, 2011, 12:00am PDT
User input validation is a technique to counter attacks on web applications. In typical client-server architectures, this validation is performed on the client side. This is inefficient because...
Provided by Institut Telecom
-
White Papers
Performance Evaluation of Biometric Template Update
February 27, 2012, 12:00am PST
Template update allows to modify the biometric reference of a user while he uses the biometric system. With such kind of mechanism the authors expect the biometric system uses always an up-to-date...
Provided by Institut Telecom
-
White Papers
An AHP-Based Resource Management Scheme for CRRM in Heterogeneous Wireless Networks
February 3, 2012, 12:00am PST
In a heterogeneous wireless environment, a variety of Radio Access Technologies (RATs) coexist. Since, the number of RATs is anticipated to increase in the near future, it is desirable to have...
Provided by Institut Telecom
-
White Papers
CA3M: A Runtime Model and a Middleware for Dynamic Context Management
August 25, 2009, 12:00am PDT
In ubiquitous environments, context-aware applications need to monitor their execution context. They use middleware services such as context managers for this purpose. The space of monitorable...
Provided by Institut Telecom
-
White Papers
CA3M: A Runtime Model and a Middleware for Dynamic Context Management
August 25, 2009, 12:00am PDT
In ubiquitous environments, context-aware applications need to monitor their execution context. They use middleware services such as context managers for this purpose. The space of monitorable...
Provided by Institut Telecom
-
White Papers
An AHP-Based Resource Management Scheme for CRRM in Heterogeneous Wireless Networks
February 3, 2012, 12:00am PST
In a heterogeneous wireless environment, a variety of Radio Access Technologies (RATs) coexist. Since, the number of RATs is anticipated to increase in the near future, it is desirable to have...
Provided by Institut Telecom
-
White Papers
Performance Evaluation of Biometric Template Update
February 27, 2012, 12:00am PST
Template update allows to modify the biometric reference of a user while he uses the biometric system. With such kind of mechanism the authors expect the biometric system uses always an up-to-date...
Provided by Institut Telecom
-
White Papers
Tailored Shielding and Bypass Testing of Web Applications
March 24, 2011, 12:00am PDT
User input validation is a technique to counter attacks on web applications. In typical client-server architectures, this validation is performed on the client side. This is inefficient because...
Provided by Institut Telecom
-
White Papers
Distributed Algorithms for Green IP Networks
January 26, 2012, 12:00am PST
The authors propose a novel distributed approach to exploit sleep mode capabilities of links in an Internet Service Provider network. Differently from other works, neither a central controller,...
Provided by Institut Telecom
-
White Papers
Energy-Awareness in Network Dimensioning: A Fixed Charge Network Flow Formulation
March 22, 2010, 12:00am PDT
Reduction of unnecessary energy consumption is becoming a major concern in wired networking, in reason of both the potential economical benefits and its forecast environmental impact. These...
Provided by Institut Telecom
-
White Papers
Multi Group Key Agreement Mechanism for Mobile P2P Wireless Networks
November 26, 2011, 12:00am PST
Secure and efficient communication among a set of mobile nodes is one of the most important aspect in P2P wireless networks. Security of various group-oriented applications requires a group secret...
Provided by Institut Telecom
-
White Papers
Apple-to-Apple: A Common Framework for Energy-Efficiency in Networks
March 1, 2011, 12:00am PST
Research on energy-efficiency in and through communication networks has already gained the attention of a broad research community. Specifically, the authors consider efforts towards improving...
Provided by Institut Telecom
-
White Papers
Apple-to-Apple: A Framework Analysis for Energy-Efficiency in Networks
May 28, 2010, 12:00am PDT
Research on energy-efficiency in and through communication networks has already gained the attention of a broad research community. Specifically, the authors consider efforts towards improving...
Provided by Institut Telecom
-
White Papers
The Green-Game: Striking a Balance Between QoS and Energy Saving
January 13, 2011, 12:00am PST
The energy consumed by communication networks can be reduced in several ways. A promising technique consists in concentrating the workload of an infrastructure on a reduced set of devices, while...
Provided by Institut Telecom
-
White Papers
Secure Geo-Localization of Wireless Sensor Nodes in the Presence of Misbehaving Anchor Nodes
October 16, 2010, 12:00am PDT
Geo-localization of nodes in a Wireless Sensor Network (WSN) is a process that allows location-unaware nodes to discover their spatial coordinates. This process requires the cooperation of all the...
Provided by Institut Telecom
-
White Papers
Handover Criteria Considerations in Future Convergent Networks
August 2, 2006, 12:00am PDT
Design of Handover mechanisms in converged wireless and wire-line networks where different access technologies overlap are challenging. As the first step, defining the handover criteria for...
Provided by Institut Telecom
-
White Papers
Inter-Domain QoS Control Mechanism in IMS Based Horizental Converged Networks
February 10, 2007, 12:00am PST
IP Multimedia Subsystem standardized by 3GPP has attracted the endorsement of other network technology providers. IMS is the most complete IP base service control and management overlay (using...
Provided by Institut Telecom
-
White Papers
Adopting IMS in WiFi Technology
December 15, 2007, 12:00am PST
IP Multimedia Subsystem which is standardized by 3GPP is an important step to improve the delivery of innovating IPTelephony and Multimedia services to the customers in 3G and B3G networks....
Provided by Institut Telecom
-
White Papers
Cooperative Communication for Wireless Sensors Network : A Mac Protocol Solution
July 11, 2008, 12:00am PDT
This paper proposes a new Mac layer scheme (WSC-MAC) for Wireless Sensor Network (WSN) improving the overall the network reliability by using cooperative communication. The authors focus their...
Provided by Institut Telecom
-
White Papers
OFDM System Identification for Cognitive Radio Based on Pilot-Induced Cyclostationarity
September 22, 2008, 12:00am PDT
In the context of cognitive radio, this paper addresses the challenge of OFDM system identification. The authors show that it is possible to take advantage of pilot tone structures to perform...
Provided by Institut Telecom
-
White Papers
Blind Noise Variance Estimation for OFDMA Signals
January 16, 2009, 12:00am PST
The authors present two new noise variance estimation methods for OFDMA signals transmitted through an unknown multipath fading channel. They focus on blind estimation as it does not require any...
Provided by Institut Telecom
-
White Papers
A Maximum Entropy Framework for Statistical Modeling of Underwater Acoustic Communication Channels
March 16, 2010, 12:00am PDT
Based on a method of inductive inference known as the principle of maximum entropy, a time-varying underwater acoustic channel model is derived. The resulting model is proved to be consistent so...
Provided by Institut Telecom
-
White Papers
Robust Estimation of Noise Standard Deviation in Presence of Signals With Unknown Distributions and Occurrences
November 18, 2011, 12:00am PST
In many applications, d-dimensional observations result from the random presence or absence of random signals in independent and additive white Gaussian noise. An estimate of the noise standard...
Provided by Institut Telecom
-
White Papers
An ID-Based Authentication Scheme for the IEEE 802.11s Mesh Network
May 15, 2010, 12:00am PDT
Nowadays authentication in Wireless Mesh Networks (WMN) refers to the 802.1X authentication methods or a Pre-shared key authentication, and makes use of certificates or shared secrets. In wireless...
Provided by Institut Telecom
-
White Papers
ReDEx: Receiver Diversity Exploitation Mechanism for 802.11 Wireless Networks
November 24, 2008, 12:00am PST
The authors' objective is to increase the individual throughput of each node in the network by exploiting neighbors with more favorable channel conditions in terms of bit rate and packet loss...
Provided by Institut Telecom
-
White Papers
MUQAMI+: A Scalable and Locally Distributed Key Management Scheme for Clustered Sensor Networks
July 16, 2009, 12:00am PDT
Wireless Sensor Networks (WSN) is susceptible to node capture and many network levels attacks. In order to provide protection against such threats, WSNs require lightweight and scalable key...
Provided by Institut Telecom
-
White Papers
Cognitive Radio Research and Implementation Challenges
June 1, 2007, 12:00am PDT
Future mobile terminals will be able to communicate with various heterogeneous systems which are different by means of the algorithms used to implement baseband processing and channel coding. This...
Provided by Institut Telecom
-
White Papers
Medical Image Integrity Control Combining Digital Signature and Lossless Watermarking
January 14, 2010, 12:00am PST
Enforcing protection of medical content becomes a major issue of computer security. Since medical contents are more and more widely distributed, it is necessary to develop security mechanism to...
Provided by Institut Telecom
-
White Papers
Peer-to-Peer Time-Shifted Streaming Systems
November 6, 2009, 12:00am PST
In live streaming systems (IPTV, life-stream services, etc.), an attractive service consists in allowing users to access past portions of the stream. This is called a time-shifted streaming...
Provided by Institut Telecom
-
White Papers
Distributed Turbo-Like Codes for Multi-User Cooperative Relay Networks
October 12, 2009, 12:00am PDT
In this paper, a distributed turbo-like coding scheme for wireless networks with relays is proposed. The authors consider a scenario where multiple sources communicate with a single destination...
Provided by Institut Telecom
-
White Papers
Toward a New Ad Hoc Node Design for Secure Service Deployment Over Ad Hoc Network
September 17, 2008, 12:00am PDT
Security in ad hoc networks is a major issue when it comes to real deployment of services over this sort of networks. A large amount of research effort was directed toward routing in ad hoc...
Provided by Institut Telecom
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