The Science and Information Organization

Displaying 1-9 of 9 results

  • White Papers // Aug 2011

    Simulation and Evaluation of a Simple Adaptive Antenna Array for a WCDMA Mobile Communication

    This paper presents a uniform Linear Array model of a simple adaptive antenna array based on Signal-to-Interference and Noise Ratio (SINR) maximization. The SINR using the adaptive antenna array was investigated for a conventional narrowband beam former by varying the number of antenna array elements and number of interfering signals...

    Provided By The Science and Information Organization

  • White Papers // Aug 2011

    Video Transmission Over Cognitive Radio TDMA Networks Under Collision Errors

    Cognitive Radio (CR) networks are emerging as new paradigm of communication and channels sharing in multimedia and wireless networks. In this paper, the authors address the problem of video transmission over shared CR networks using progressive compression source coding associated to fountain codes. They consider a TDMA-based transmission where many...

    Provided By The Science and Information Organization

  • White Papers // Aug 2011

    Scalable TCP: Better Throughput in TCP Congestion Control Algorithms on MANETs

    In the modern mobile communication world the congestion control algorithms role is vital to data transmission between mobile devices. It provides better and reliable communication capabilities in all kinds of networking environment. The wireless networking technology and the new kind of requirements in communication systems needs some extensions to the...

    Provided By The Science and Information Organization

  • White Papers // Aug 2011

    Stable-Path Multi-Channel Routing With Extended Level Channel Assignment

    The authors have investigated the performance comparison of different hybrid optical amplifiers (RAMAN-EDFA,RAMANSOA, SOA-EDFA,EDFA-RAMAN-EDFA).The proposed configuration consists of 16, 32 and 64 Gbps channels at speed of 10 Gbps. They have realized the different hybrid amplifiers and their parameters like quality factor, ber, eye opening and jitter at different number...

    Provided By The Science and Information Organization

  • White Papers // Aug 2011

    RSS Based Vertical Handoff Algorithms for Heterogeneous Wireless Networks - A Review

    Heterogeneous networks are integrated in fourth generation. To have seamless communication and mobility between these heterogeneous wireless access networks, support of vertical handoff is required. Vertical handover is convergence of heterogeneous networks for e.g.:- handover between WLAN and cellular networks. In this paper, three algorithms on RSS based vertical handoff...

    Provided By The Science and Information Organization

  • White Papers // Jul 2011

    Characterization of Dynamic Bayesian Network

    In this paper, the authors will be interested at Dynamic Bayesian Network (DBNs) as a model that tries to incorporate temporal dimension with uncertainty. They start with basics of DBN where they especially focus in Inference and Learning concepts and algorithms. Then, they will present different levels and methods of...

    Provided By The Science and Information Organization

  • White Papers // Jul 2011

    The Threshold EM Algorithm for Parameter Learning in Bayesian Network With Incomplete Data

    Bayesian Networks (BN) is used in a big range of applications but they have one issue concerning parameter learning. In real application, training data are always incomplete or some nodes are hidden. To deal with this problem many learning parameter algorithms are suggested foreground EM, Gibbs sampling and RBE algorithms....

    Provided By The Science and Information Organization

  • White Papers // Jan 2011

    Detection of Routing Misbehavior in MANETs With 2ACK Scheme

    The Routing misbehavior in MANETs (Mobile Ad hoc NETworks) is considered in this paper. Commonly routing protocols for MANETs are designed based on the assumption that all participating nodes are fully cooperative. Routing protocols for MANETs are based on the assumption which are, all participating nodes are fully cooperative. Node...

    Provided By The Science and Information Organization

  • White Papers // Jan 2011

    Survey of Wireless MANET Application in Battlefield Operations

    In this paper, the authors present a framework for performance analysis of wireless MANET in combat/battle field environment. The framework uses a cross-layer design approach where four different kinds of routing protocols are compared and evaluated in the area of security operations. The resulting scenarios are then carried out in...

    Provided By The Science and Information Organization

  • White Papers // Jul 2011

    Characterization of Dynamic Bayesian Network

    In this paper, the authors will be interested at Dynamic Bayesian Network (DBNs) as a model that tries to incorporate temporal dimension with uncertainty. They start with basics of DBN where they especially focus in Inference and Learning concepts and algorithms. Then, they will present different levels and methods of...

    Provided By The Science and Information Organization

  • White Papers // Jul 2011

    The Threshold EM Algorithm for Parameter Learning in Bayesian Network With Incomplete Data

    Bayesian Networks (BN) is used in a big range of applications but they have one issue concerning parameter learning. In real application, training data are always incomplete or some nodes are hidden. To deal with this problem many learning parameter algorithms are suggested foreground EM, Gibbs sampling and RBE algorithms....

    Provided By The Science and Information Organization

  • White Papers // Aug 2011

    Scalable TCP: Better Throughput in TCP Congestion Control Algorithms on MANETs

    In the modern mobile communication world the congestion control algorithms role is vital to data transmission between mobile devices. It provides better and reliable communication capabilities in all kinds of networking environment. The wireless networking technology and the new kind of requirements in communication systems needs some extensions to the...

    Provided By The Science and Information Organization

  • White Papers // Aug 2011

    Stable-Path Multi-Channel Routing With Extended Level Channel Assignment

    The authors have investigated the performance comparison of different hybrid optical amplifiers (RAMAN-EDFA,RAMANSOA, SOA-EDFA,EDFA-RAMAN-EDFA).The proposed configuration consists of 16, 32 and 64 Gbps channels at speed of 10 Gbps. They have realized the different hybrid amplifiers and their parameters like quality factor, ber, eye opening and jitter at different number...

    Provided By The Science and Information Organization

  • White Papers // Aug 2011

    RSS Based Vertical Handoff Algorithms for Heterogeneous Wireless Networks - A Review

    Heterogeneous networks are integrated in fourth generation. To have seamless communication and mobility between these heterogeneous wireless access networks, support of vertical handoff is required. Vertical handover is convergence of heterogeneous networks for e.g.:- handover between WLAN and cellular networks. In this paper, three algorithms on RSS based vertical handoff...

    Provided By The Science and Information Organization

  • White Papers // Aug 2011

    Simulation and Evaluation of a Simple Adaptive Antenna Array for a WCDMA Mobile Communication

    This paper presents a uniform Linear Array model of a simple adaptive antenna array based on Signal-to-Interference and Noise Ratio (SINR) maximization. The SINR using the adaptive antenna array was investigated for a conventional narrowband beam former by varying the number of antenna array elements and number of interfering signals...

    Provided By The Science and Information Organization

  • White Papers // Aug 2011

    Video Transmission Over Cognitive Radio TDMA Networks Under Collision Errors

    Cognitive Radio (CR) networks are emerging as new paradigm of communication and channels sharing in multimedia and wireless networks. In this paper, the authors address the problem of video transmission over shared CR networks using progressive compression source coding associated to fountain codes. They consider a TDMA-based transmission where many...

    Provided By The Science and Information Organization

  • White Papers // Jan 2011

    Detection of Routing Misbehavior in MANETs With 2ACK Scheme

    The Routing misbehavior in MANETs (Mobile Ad hoc NETworks) is considered in this paper. Commonly routing protocols for MANETs are designed based on the assumption that all participating nodes are fully cooperative. Routing protocols for MANETs are based on the assumption which are, all participating nodes are fully cooperative. Node...

    Provided By The Science and Information Organization

  • White Papers // Jan 2011

    Survey of Wireless MANET Application in Battlefield Operations

    In this paper, the authors present a framework for performance analysis of wireless MANET in combat/battle field environment. The framework uses a cross-layer design approach where four different kinds of routing protocols are compared and evaluated in the area of security operations. The resulting scenarios are then carried out in...

    Provided By The Science and Information Organization