� GPRS overview � Base Station Subsystem � Logical Link Control layer (2009)
Service Opnet Model, Renju Narayanan, Paulman Chan, Mikael Johansson, Frank Zimmermann, Ljiljana Trajković, ...
En särskild händelse. Ambulanspersonals upplevelse av kollegialt stöd (2009)
Turunen, Juha, Johansson, Mikael
Att arbeta inom ambulanssjukvård är emellanåt mycket psykiskt påfrestande. Den verklighet man agerar i är fri från all censur och förskönande omskrivningar. Med all sannolikhet påverkar...
Robust load-balancing under statistical uncertainty: models and polynomial-time algorithms (2009)
Gunnar, Anders, Johansson, Mikael
We study the problem of guaranteed-performance routing under statistical traffic uncertainty. Relevant traffic models are presented and a polynomial-time algorithm for solving the associated robust...
Familiarity or conceptual priming : event-related potentials in name recognition (2009)
Stenberg, Georg, Hellman, Johan, Johansson, Mikael, Rosén, Ingmar
Recent interest has been drawn to the separate components of recognition memory, as studied by event-related potentials (ERPs). In ERPs, recollection is usually accompanied by a late, parietal...
Ultrasome: efficient aberration caller for copy number studies of ultra-high resolution (2009)
Nilsson, Björn, Johansson, Mikael, Al-Shahrour, Fatima, Carpenter, Anne E., Ebert, Benjamin L.
Motivation: Multimillion-probe microarrays allow detection of gains and losses of chromosomal material at unprecedented resolution. However, the data generated by these arrays are several-fold larger...
Johansson, Mikael, Fransson, Victor
The purpose of this Bachelor’s thesis is to examine university librarians’ perceptions of information literacy, of students’ information literacy and of education in information literacy. The...
USING JAVA TOPOLOGY SUITE FOR REAL-TIME DATA GENERALISATION AND INTEGRATION (2008)
The amount of cartographic data distributed on the Internet is still increasing. Today, most of the data are raster data, but the emerging XML-standards will make it easier to distribute vector data...
END-TO-END RELIABILITY IN WIRELESS SENSOR NETWORKS: SURVEY AND RESEARCH CHALLENGES (2008)
P. Pereira (ed, Paulo Rogério Pereira, António Grilo, Francisco Rocha, Mário Serafim Nunes, Augusto Casaca, ...
Abstract. This paper presents a survey on transport and routing protocols for wireless sensor networks (WSN). Research challenges regarding the problem of end-to-end reliability are addressed in...
Distributed Resource Allocation Strategies for Achieving Quality of Service (2008)
Björn Johansson, Constantin Adam, Mikael Johansson, Rolf Stadler
Abstract — We investigate the resource allocation problem for large-scale server clusters with quality-of-service objectives, where key functions are decentralized. Specifically, the optimal...
Advisors Karl, H. Johansson, Mikael Johansson
New applications in areas such as factory automation, power distribution, and transportation rely on a networked infrastructure. These networked embedded control systems pose many research challenges...
Distributed Model Predictive Consensus (2008)
Björn Johansson, Alberto Speranzon, Mikael Johansson, Karl Henrik Johansson
Abstract — In this paper we consider the problem of designing a distributed control strategy such that a linear combination of the states of a number of vehicles coincide at a given time. The...
Analysis of networked estimation under contention-based (2008)
Maben Rabi, Luca Stabellini, Peter Almström, Mikael Johansson
medium access
The memorability of names and the divergent effects of prior experience (2008)
Stenberg, Georg, Hellman, Johan, Johansson, Mikael
Pre-experimental familiarity can have paradoxical effects on episodic memory Knowledge of the stimulus domain usually enhances memory, but word frequency-a presumed correlate of prior experience-is...
Skilda uppfattningar kring Cheap Monday? (2008)
Cassiano, Federico, Harryson, Emil, Johansson, Mikael
Syfte: Syftet med uppsatsen är främst att se om respondenternas uppfattning av varumärket stämmer överens med den bild företaget försöker förmedla. Vi vill även öka förståelsen för hur...
Piecewise Linear Systems (2007)
Sven Hedlund, Mikael Johansson
This manual describes a MATLAB toolbox for computational analysis of piecewise linear systems. Key features of the toolbox are modeling, simulation, analysis, and optimal control for piecewise linear...
Improving Efficiency in the omputation of Piecewise (uadratie Lyapunov Functions (2007)
Mikael Johansson, Andrey Ghulchak, Anders Rantzer
In a series of papers, the authors have developed a method for analysis of piecewise linear systems. The idea is to use Lyapunov functions that are piecewise quadratic. Such Lyapunov functions can be...
Submitted to Control Systems Magazine Dynamic Pictures and Interactive Learning (2007)
Björn Wittenmark, Helena Haglund, Mikael Johansson
The paper presents interactive learning tools used in courses in automatic control at Lund Institute of Technology. The learning tools are aimed at improving the understanding of and intuition for...
Computational Tools for the Verification of Hybrid Systems (2007)
Claire J. Tomlin, Stephen P. Boyd, Ian Mitchell, Alexandre Bayen, Re Bayen, Mikael Johansson, ...
The hybrid systems framework provides an appealing means for verifying the safety of dynamical systems. The authors address safety...
Jansson, Sara, Johansson, Mikael
IT-system spelar en stor roll inom många verksamheter idag. Utvecklingsprojekt kan vara ett kostsamt risktagande då stora summor pengar ofta är inblandade. Många IT-projekt tenderar att...
Förväntningsgapet - Massmedias inverkan på förväntningarna mellan klienter och revisorer (2007)
Johansson, Mikael, Lindberg, Henrik
Regler och lagar som hanterar revision har över tiden modifierats i syfte att undanröja sannolikheten för att skandaler och oegentligheter skall inträffa på nytt. Dessa regelförändringar har...
Predictive control over wireless multi-hop networks (2007)
Witrant, Emmanuel, Gun Park, Pan, Johansson, Mikael, Fischione, Carlo, Henrik Johansson, Karl
Remote control over wireless multi-hop networks is considered. Time-varying delays for the transmission of sensor and control data over the wireless network are caused by a randomized multi-hop...
Predictive control over wireless multi-hop networks (2007)
Witrant, Emmanuel, Gun Park, Pan, Johansson, Mikael, Fischione, Carlo, Henrik Johansson, Karl
Remote control over wireless multi-hop networks is considered. Time-varying delays for the transmission of sensor and control data over the wireless network are caused by a randomized multi-hop...
Predictive control over wireless multi-hop networks (2007)
Emmanuel Witrant, Pan Gun Park, Mikael Johansson, Carlo Fischione, Karl Henrik Johansson
Abstract — Remote control over wireless multi-hop networks is considered. Time-varying delays for the transmission of sensor and control data over the wireless network are caused by a randomized...
LITH-ISY-EX--07/3971--SE (2007)
Klas Håkansson, Mikael Johansson, Klas Håkansson, Mikael Johansson, Handledare Henrik Johansson, ...
Language � Svenska/Swedish Engelska/English
Johansson, Mikael, Aslan, Alp, Bäuml, Karl-Heinz, Gäbel, Andrea, Mecklinger, Axel
People tend to forget information that is related to memories they are actively trying to retrieve. On the basis of results from behavioral studies, such retrieval-induced forgetting is held to...
Implementation of Section 404 of the Sarbanes-Oxley Act in a Swedish Environment (2007)
Åkerblad, Patrik, Johansson, Mikael, Jangvik, Elin
Problem Area: The American company Enron was the seventh largest company notated on the stock market when it went bankrupt due to extensive accounting frauds in December 2001. By manipulating the...
2007 Nilsson et Volume al. 8, Issue 5, Article R74 Open Access Method (2007)
Björn Nilsson, Petra Håkansson, Mikael Johansson, Sven Nel, Thoas Fioretos
Threshold-free high-power methods for the ontological analysis of genome-wide gene-expression studies
2E5295/5B5749 Convex optimization with engineering applications Autumn 2006 (2006)
Instructors Anders Forsgren, Mikael Johansson
Exercise 4.1. In this exercise, the intent is to write a interior-point type algorithm for solving a linear programming problem on standard form. a) Write a Matlab m-file that solves a linear...
Björn Johansson, Student Member, Pablo Soldati, Mikael Johansson
Abstract—Network performance can be increased if the traditionally separated network layers are jointly optimized. Recently, network utility maximization has emerged as a powerful framework for...
Björn Johansson, Student Member, Mikael Johansson
Abstract — Network performance can be increased if the traditionally separated network layers are jointly optimized. Recently, network utility maximization has emerged as a powerful framework for...
Björn Johansson, Constantin Adam, Mikael Johansson, Rolf Stadler, Björn Johansson, Constantin Adam, ...
Abstract — We investigate the resource allocation problem for large-scale server clusters with quality-of-service objectives, in which key functions, including topology construction, request...
Stenberg, Georg, Johansson, Mikael, Rosén, Ingmar
In memory retrieval, search can be guided by mental sets towards different subsets of the available evidence. Such retrieval orientations have been suggested to leave an imprint on event-related...
Johansson, Mikael, Aslan, Alp, Bäuml, Karl-Heinz, Gäbel, Andrea, Mecklinger, Axel
People tend to forget information that is related to memories they are actively trying to retrieve. On the basis of results from behavioral studies, such retrieval-induced forgetting is held to...
Johansson, Mikael, Aslan, Alp, Bäuml, Karl-Heinz, Gäbel, Andrea, Mecklinger, Axel
People tend to forget information that is related to memories they are actively trying to retrieve. On the basis of results from behavioral studies, such retrieval-induced forgetting is held to...
Primal and dual approaches to distributed cross-layer optimization (2005)
Björn Johansson, Mikael Johansson
Abstract: Several approaches for cross-layer design, e.g., coordinating the traditionally separated layers in wireless networks, have been proposed. However, protocols that are close to achieving the...
Scheduling, routing and power allocation for fairness in wireless networks (2004)
Abstract — We consider the problem of finding the jointly optimal end-to-end communication rates, routing, power allocation and transmission scheduling for wireless networks. We focus on throughput...
Simultaneous Routing and Resource Allocation via Dual Decomposition (2004)
Lin Xiao, Mikael Johansson, Stephen Boyd
In wireless data networks the optimal routing of data depends on the link capacities which, in turn, are determined by the allocation of communications resources (such as powers and bandwidths) to...
Traffic Matrix Estimation on a Large IP Backbone - A Comparison on Real Data (2004)
Anders Gunnar, Mikael Johansson, Thomas Telkamp
This paper considers the problem of estimating the pointto -point tra#c matrix in an operational IP backbone. Contrary to previous studies, that have used a partial traffic matrix or demands...
Simultaneous Routing and Resource Allocation via Dual Decomposition (2004)
Lin Xiao, Student Member, Mikael Johansson, Stephen P. Boyd
Abstract—In wireless data networks, the optimal routing of data depends on the link capacities which, in turn, are determined by the allocation of communications resources (such as transmit powers...
KUNGL TEKNISKA HÖGSKOLAN (2003)
Mikael Johansson, Lin Xiao, Mikael Johansson, Lin Xiao
Cross-layer optimization of wireless networks
Simultaneous routing and power allocation in CDMA wireless data networks (2003)
Mikael Johansson, Stephen Boyd
Abstract — The optimal routing of data in a wireless network depends on the link capacities, which, in turn, are determined by the allocation of transmit powers across the network. Thus, the...
Simultaneous routing and power allocation in CDMA wireless data networks (2003)
Mikael Johansson, Lin Xiao, Stephen Boyd
Abstract--- In CDMA wireless networks the optimal routing of data depends on the link capacities which, in turn, are determined by the allocation of transmit powers to the links. The optimal...
Joint optimization of communication rates and linear systems (2003)
Lin Xiao, Mikael Johansson, Haitham Hindi, Stephen Boyd, Andrea Goldsmith
We consider a linear system, such as a controller or estimator, in which several signals are transmitted over communication channels with bit rate limitations.We focus on finding the allocation of...
Joint optimization of communication rates and linear systems (2003)
Lin Xiao, Mikael Johansson, Haitham Hindi, Stephen Boyd, Andrea Goldsmith
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Optimal Routing and SINR Target Selection (2003)
Mikael Johansson, Lin Xiao, Stephen Boyd
this paper, we formulate the problem of simultaneous routing and power allocation in code-division multiple access (CDMA) wireless data networks. In CDMA systems, the capacity of a link depends on...
Sven Stenström, Markus Magnusson, Mikael Johansson, Ericsson Ccnd
Network processors (NPs) are a solution to packet processing at the ever-increasing wire speeds of modern data communication networks. The traditional way of increasing the packetprocessing rate of a...
Johansson, Mikael, Stenberg, Georg
Participants tend to falsely remember a nonpresented critical word after having studied a list of the word's primary associates. This paper presents a Swedish version of the Deese-Roediger-McDermott...
Memory for perceived and imagined pictures : an event-related potential study (2002)
Johansson, Mikael, Stenberg, Georg, Lindgren, M., Rosén, Ingmar
Event-related potentials (ERPs) and behavioural measures were used to investigate recognition memory and source-monitoring judgements about previously perceived and imagined pictures. At study, word...
Semantic processing without conscious identification : evidence from event-related potentials (2000)
Stenberg, Georg, Lindgren, Magnus, Johansson, Mikael, Olsson, Andreas, Rosén, Ingmar
Three event-related potential (ERP) experiments examined whether semantic content can be accessed from visually presented words that cannot be consciously identified. Category labels were shown to...
Improving Efficiency in the Computation of Piecewise Quadratic Lyapunov Functions (1999)
Mikael Johansson, Andrey Ghulchak, Anders Rantzer
In a series of papers, the authors have developed a method for analysis of piecewise linear systems. The idea is to use Lyapunov functions that are piecewise quadratic. Such Lyapunov functions can be...
A Toolbox For Computational Analysis Of Piecewise Linear Systems (1999)
Sven Hedlund, Mikael Johansson
This paper reports the development of a Matlab toolbox for computational analysis of piecewise linear systems. The analysis is based on piecewise quadratic Lyapunov functions, which are computed via...
: The recently developed technique for computation of piecewise quadratic Lyapunov functions is specialized to Lyapunov functions that are piecewise linear. This establishes a unified framework for...
A toolbox for computational analysis of piecewise linear systems (1999)
Sven Hedlund, Mikael Johansson
This paper reports the development of a Matlab toolbox for computational analysis of piecewise linear systems. The analysis is based on piecewise quadratic Lyapunov functions, which are computed via...
Sven Hedlund, Mikael Johansson
This manual describes a MATLAB toolbox for computational analysis of piecewise linear systems. Key features of the toolbox are modeling, simulation, analysis, and optimal control for piecewise linear...
Computation of Piecewise Quadratic Lyapunov Functions for Hybrid Systems (1998)
Mikael Johansson, Anders Rantzer
. This paper presents a computational approach to stability analysis of nonlinear and hybrid systems. The search for a piecewise quadratic Lyapunov function is formulated as a convex optimization...
Computation of Piecewise Quadratic Lyapunov Functions for Hybrid Systems (1998)
Mikael Johansson, Anders Rantzer
. This paper presents a computational approach to stability analysis of nonlinear and hybrid systems. The search for a piecewise quadratic Lyapunov function is formulated as a convex optimization...
Virtual Interactive Systems for Control Education
Mikael Johansson, Karl J. #str#m
Advances in computers and software have made it possible to construct a new generation of teaching tools for automatic control. These tools have a position somewhere between ordinary laboratory...