GENE CLUSTERING USING INDEPENDENT COMPONENT ANALYSIS (2009)
Michel Sarkis, Zaher Dawy, Joachim Hagenauer, Jakob C. Müller
Linkage disequilibrium has gained a lot of attention recently since it can be effectively utilized in various problems in the field of statistical genetics, for example gene mapping and evolutionary...
A novel gene mapping algorithm based on independent component analysis (2009)
Zaher Dawy, Michel Sarkis, Joachim Hagenauer, Jakob Mueller
Identifying the causal genetic markers responsible for complex diseases is a main aim in human genetics. In the context of complex diseases, which are believed to have multiple causal loci of largely...
Modeling and Analysis of Gene Expression Mechanisms: A Communication Theory Approach (2009)
Zaher Dawy, Faruck Morcos González, Joachim Hagenauer, Jakob C. Mueller
Abstract — The increase in the availability of genetic data in the last years is prompting the efforts to use tools from communications engineering for the understanding of genetic information....
Molecular Genetics · Classification (2009)
Pavol Hanus, Bernhard Goebel, Janis Dingel, Johanna Weindl, Juergen Zech, Zaher Dawy, ...
Abstract The DNA sequencing efforts of the past years together with rapid progress in sequencing technology have generated a huge amount of sequence data available in public molecular databases. This...
Implementing the context tree weighting method for context recognition (2008)
Zaher Dawy, Joachim Hagenauer, Andreas Hoffmann
The context tree weighting method (CTW) is a statistics–based universal date compres-sion algorithm that is capable of achieving superior performance compared to Lempel– Ziv based algorithms [1],...
DAWWSEN: A DEFENSE MECHANISM AGAINST WORMHOLE ATTACKS IN WIRELESS SENSOR NETWORKS (2008)
Rouba El Kaissi, Ayman Kayssi, Ali Chehab, Zaher Dawy
Many obstacles impede the successful deployment of sensor networks. In addition to the limited resources issue, security is a major concern especially for applications such as home security...
OPTIMAL TIMER SETTINGS FOR THE SOFT HANDOVER ALGORITHM IN WCDMA (2007)
Jijun Luo, Markus Dillinger, Egon Schulz, Zaher Dawy
E-Mail: Markus.Dillinger @ icn.siemens.de Abstract-- One important measure for the signaling load in WCDMA is the number of handovers per time unit. In particular the branch additions and releases...
SYSTEM LEVEL PERFORMANCE EVALUATION OF SMART ANTENNAS FOR THE REVERSE LINK OF WCDMA (2007)
Zaher Dawy, Jijun Luo, Markus Dillinger, Christopher Brunner
Abstract--In this paper, we examine the performance enhancement that can be achieved by using smart antenna arrays compared to a three-sector antenna configuration at the base station for the...
Zaher Dawy, Sasa Davidovic, Michael Mecking, Er Seeger
Abstract | Serial interference cancellation (SIC) is a very promising receiver structure for enhancing the uplink capacity of WCDMA cellular systems. It can be implemented easily in practice with low...
Implementing the context tree weighting method for context recognition (2007)
Zaher Dawy, Joachim Hagenauer, Andreas Hoffmann
The context tree weighting method (CTW) is a competent statistics–based universal data com-pression algorithm proposed by Willems et al. in 1995. Motivated by the superior data compression...
Zaher Dawy, Joachim Hagenauer, Pavol Hanus, Jakob C. Mueller
Abstract — Possibilities of using mutual information for classification and content recognition are exploited. Two different mutual information based distance measures are proposed, one for...
Capacity and coverage enhancement for wireless cellular networks / (2004)
Zugl.: München, University, Diss., 2004.
The General Gaussian Relay Channel: Analysis and Insights (2004)
We study the problem of power consumption in the general Gaussian relay channel which is composed of one source-- destination pair willing to communicate at a fixed transmission rate with the...
An approximation to the distribution of finite sample size mutual information estimates (2004)
Bernhard Goebel, Zaher Dawy, Joachim Hagenauer, Jakob C. Mueller
Abstract — In this paper, the distribution of mutual information between two discrete random variables is approximated by means of a second-order Taylor series expansion. Approximative expressions...
Coverage and capacity enhancement of CDMA cellular systems via multihop transmission (2003)
Zaher Dawy, Ioannis Oikonomidis
Abstract — The uplink coverage and capacity of CDMA cellular systems are intracell and intercell interference limited. In this work, we propose a practical multihop based cellular network design to...
Zaher Dawy, Pornchai Leelapornchai
We determine the optimal number of relay nodes to be used between a given source–destination pair in a wireless ad hoc network. The optimal number of relay nodes is given by the route that requires...
Zaher Dawy, Pornchai Leelapornchai
We determine the optimal number of relay nodes to be used between a given source--destination pair in a wireless ad hoc network. The optimal number of relay nodes is given by the route that requires...
Probability Estimation for Soft Handover in WCDMA (2000)
Jijun Luo, Markus Dillinger, Egon Schulz, Zaher Dawy
E-Mail: Markus.Dillinger @ icn.siemens.de Abstract--One important impact on the signaling load and system performance in cellular system is the probability of mobiles being in SHO. In particular the...
Weindl, Johanna, Hanus, Pavol, Dawy, Zaher, Zech, Juergen, Hagenauer, Joachim, Mueller, Jakob C.
We present a computational model of DNA-binding by σ70 in Escherichia coli which allows us to extract the functional characteristics of the wider promoter environment. Our model is based on a...