| The performance of second order statistics (SOS) based semi-blind channel estimation in long-code DS-CDMA systems is analyzed. The covariance matrix of SOS estimates is obtained in the large system limit, and is used to analyze the largesample performance of two SOS based semi-blind channel estimation algorithms. A notion of blind estimation e ciency is also de ned and is examined via simulat...

Abstract Systems complexity is increasing, in particular, when systems become of (SoS). SoS are composed constituent (CS), have unique goals for the CS and as a whole, present new SoS-level properties called emergent properties. Emergent because they only appear at system level. Current research has revealed some tools focusing on simple emergence engineers aiming to design However, forming cre...

Introduction SOS Médecins France (SOS Med) is the first private and permanent network of general practitioners providing emergency care in France. Besides Hospital emergency departments (HED), SOS Med is therefore a major source of data for detecting and measuring nearreal-time health phenomena. The emergency services provided by the SOS Med have been subject to important changes in the recent ...

INTRODUCTION............................................................ 61 PROCESSING OF DAMAGED DNA ............................................................ 61 SOS REGULATORY NETWORK ............................................................. 61 Present Model for SOS Regulation ............................................................ 62 SOS Responses ...................................

Wireless sensor networks enjoy some unique characteristics. For example, sensor network are often autonomous, long-lived and rely on battery as the power source. In this paper, we thus improve the SOS kernel to address these unique characteristics. Firstly, we design and implement the hot-swapping capability in SOS that allows a module to be upgraded on the fly. In our system, the hot-swapping ...

It has often been claimed in recent papers that one can find a degree d Sum-of-Squares proof if one exists via the Ellipsoid algorithm. In [16], Ryan O’Donnell notes this widely quoted claim is not necessarily true. He presents an example of a polynomial system with bounded coefficients that admits low-degree proofs of non-negativity, but these proofs necessarily involve numbers with an exponen...

The inducible SOS system increases the survival of bacteria exposed to DNA-damaging agents by increasing the capacity of error-free and error-prone DNA repair systems. The inducible mutator effect is expected to contribute to the adaptation of bacterial populations to these adverse life conditions by increasing their genetic variability. The evolutionary impact of the SOS system would be even g...

Systems of systems (SoS) are large-scale systems composed of complex systems with difficult to predict emergent properties. One of the most significant challenges in the engineering of such systems is how to predict their non-functional properties such as performance, and more specifically, how to model non-functional properties when the overall system functionality is not available. In this pa...