Blar i Scientific Publications in Information and Communication Technology på utgivelsesdato
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The influence of severity of fading on the statistical properties of the capacity of Nakagami-m channels with MRC and EGC
(Academic article, 2010)In this article, we have studied the statistical properties of the capacity of Nakagami-m channels when spatial diversity combining, such as maximal ratio combining (MRC) and equal gain combining (EGC), is employed at the ... -
Secure interworking with P2PSIP and IMS
(Academic article, 2010)In this paper, we propose a secure system model for interconnection between P2PSIP and IMS domains. The interworking solution is based on P2P-IMS GateWay (PIGW), which acts as a normal peer in P2PSIP network and a 3. party ... -
Maritime data integration using standard ISO 15926
(Journal article; Peer reviewed, 2010)The Oil & Gas industry is moving forward with Integrated Operations (IO). This includes a strong focus on data integration issues. There are different ways to achieve data integration, and ontology-based approaches have ... -
Managing Emerging Information Security Risks during Transitions to Integrated Operations
(Journal article; Peer reviewed, 2010)The Norwegian Oil and Gas Industry is adopting new information communication technology to connect its offshore platforms, onshore control centers and the suppliers. The management of the oil companies is generally aware ... -
On Optimizing Locally Linear Nearest Neighbour Reconstructions Using Prototype Reduction Schemes
(Lecture Notes in Computer Science;, Chapter; Peer reviewed, 2010)This paper concerns the use of Prototype Reduction Schemes (PRS) to optimize the computations involved in typical k-Nearest Neighbor (k-NN) rules. These rules have been successfully used for decades in statistical Pattern ... -
Solving Multiconstraint Assignment Problems Using Learning Automata
(Journal article; Peer reviewed, 2010)This paper considers the NP-hard problem of object assignment with respect to multiple constraints: assigning a set of elements (or objects) into mutually exclusive classes (or groups), where the elements which are ... -
Modeling a Student's Behavior in a Tutorial-Like System Using Learning Automata
(Journal article; Peer reviewed, 2010)This paper presents a new philosophy to model the behavior of a student in a tutorial- like system using learning automata (LAs). The model of the student in our system is inferred using a higher level LA, referred to as ... -
On Utilizing Association and Interaction Concepts for Enhancing Microaggregation in Secure Statistical Databases
(Journal article; Peer reviewed, 2010)This paper presents a possibly pioneering endeavor to tackle the microaggregation techniques (MATs) in secure statistical databases by resorting to the principles of associative neural networks (NNs). The prior art has ... -
Random Early Detection for Congestion Avoidance in Wired Networks: A Discretized Pursuit Learning-Automata-Like Solution
(Journal article; Peer reviewed, 2010)In this paper, we present a learning-automata-like (LAL) mechanism for congestion avoidance in wired networks. Our algorithm, named as LAL random early detection (LALRED), is founded on the principles of the operations of ... -
Learning Automaton Based On-Line Discovery and Tracking of Spatio-temporal Event Patterns
(Lecture Notes in Computer Science; no. 6230, Journal article; Peer reviewed, 2010)Discovering and tracking of spatio-temporal patterns in noisy sequences of events is a difficult task that has become increasingly pertinent due to recent advances in ubiquitous computing, such as community-based social ... -
Potential AI Strategies to Solve the Commons Game : A Position Paper
(Lecture Notes in Computer Science; no. 6085, Journal article; Peer reviewed, 2010)In this paper, we propose the use of hill climbing and particle swarm optimization to find strategies in order to play the Commons Game (CG). The game, which is a non-trivial N-person non-zero-sum game, presents a simple ... -
Design and Simulation of Narrowband Indoor Radio Propagation Channels under LOS and NLOS Propagation Conditions
(Chapter; Peer reviewed, 2010)This paper deals with the design and simulation of narrowband indoor propagation channels under line-of-sight (LOS) and non-LOS (NLOS) propagation conditions. We propose a reference channel model assuming that the scatterers ... -
Solving Stochastic Nonlinear Resource Allocation Problems Using a Hierarchy of Twofold Resource Allocation Automata.
(Journal article; Peer reviewed, 2010)In a multitude of real-world situations, resources must be allocated based on incomplete and noisy information. However, in many cases, incomplete and noisy information render traditional resource allocation techniques ... -
Performance Analysis of Alamouti Coded OFDM Systems over Rayleigh Fading Channels Correlated in Space and Time
(Chapter; Peer reviewed, 2010)This paper deals with the performance analysis of Alamouti coded orthogonal frequency division multiplexing (OFDM) systems over time-varying multipath Rayleigh fading channels. In our analysis, we consider a physically ... -
Statistical properties of the capacity of double Nakagami-m channels
(Chapter; Peer reviewed, 2010)In this article, we have presented an extensive statistical analysis of the capacity of double1 Nakagami-m channels. The double Nakagami-m channel model has applications in keyhole channels and amplify-and-forward relay ... -
Analysis on channel bonding/aggregation for multi-channel cognitive radio networks
(Chapter; Peer reviewed, 2010)Channel bonding/aggregation techniques, which assemble several channels together as one channel, could be used in cognitive radio networks for the purpose of achieving better bandwidth utilization. In existing work on this ... -
On the Statistical Properties of Equal Gain Combining over Mobile-to-Mobile Fading Channels in Cooperative Networks
(Journal article; Peer reviewed, 2010)This article deals with the statistical analysis of equal gain combining (EGC) over mobile-to-mobile (M2M) fading channels in a dual-hop amplify-and-forward relay network. Here, we analyze narrowband M2M fading channels ... -
Throughput and energy efficiency comparison of one-hop, two-hop, virtual relay and cooperative retransmission schemes
(Chapter; Peer reviewed, 2010)Two main types of approaches exist for implementing cooperative communications at the MAC layer: virtual-hop relay and cooperative retransmission. While the virtual-hop relay schemes employ relay nodes to forward packets ... -
An adaptive cooperative MAC mechanism in multi-hop wireless networks
(Journal article; Peer reviewed, 2010)In this paper, we propose a novel adaptive cooperative MAC mechanism that is specifically designed for two-hop cooperative communications where source and destination cannot hear each other directly. The proposed scheme ... -
Power consumption analysis for mobile stations in hybrid relay-assisted wireless networks
(Chapter; Peer reviewed, 2010)While Internet access using mobile or wireless technologies has become ubiquitous these days, the energy consumption aspect of such connections has not been studied in-depth yet. In this paper, a hybrid wireless network, ...