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1. Spinoza en Alemania

Author

Christian Bonnet and Mario Caimi

Subjects
Recepción Spinoza - Lichtenberg - Filosofía Alemana - Siglo XVIII, Philosophy (General), B1-5802
Abstract

Nos proponemos considerar aquí un punto de la historia de la filosofía alemana sobre el que quisiéramos proyectar una luz algo original, al interesarnos particularmente por la recepción de Spinoza por parte de un autor, Georg Christoph Lichtenberg, cuyo caso es mucho menos conocido y ha sido menos estudiado que aquellos de Lessing, de Jacobi, de Mendelssohn, de Kant, de Herder o de Goethe.

Published
2023

2. Fries lecteur de Kant

Author

Christian Bonnet

Subjects
Philosophy (General), B1-5802
Abstract

In the opinion of Jakob Friedrich Fries, Kant made damaging concessions to philosophical dogmatism, the contradictions of which he himself had pointed out with outstanding perceptiveness. So the distinction he made between transcendental knowledge (a form of knowledge of knowledge) and its object (the a priori knowledge it refers to) is not as rigorous as it should have been. Kant came to the conclusion that transcendental knowledge was itself a form of a priori knowledge, and tried to base synthetic a priori judgements upon various forms of knowledge that were themselves a priori. Kant was thus the victim of a “prejudice in favour of proof”, to which he gave the specific form of a “prejudice in favour of the transcendental”. As “transcendental deduction” tries to provide “transcendental proof” of the validity of our knowledge, the Kantian theory of knowledge is threatened by a vicious circle. According to Fries, therefore, transcendental deduction should only be a subjective (psychological and anthropological) deduction which does not mean that he aims to reduce philosophy to psychology despite the contrary opinions of those who hold his psychologism in contempt.

Published
2016
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4. Design and Implementation of a Single-Frequency Mesh Network Using OpenAirInterface

Author

Christian Bonnet, Hicham Anouar, Rizwan Ghaffar, Raymond Knopp, and Florian Kaltenberger

Subjects
Telecommunication, TK5101-6720, Electronics, TK7800-8360
Abstract

OpenAirInterface is an experimental open-source real-time hardware and software platform for experimentation in wireless communications and signal processing. With the help of OpenAirInterface, researchers can demonstrate novel ideas quickly and verify them in a realistic environment. Its current implementation provides a full open-source software modem comprising physical and link layer functionalities for cellular and mesh network topologies. The physical (PHY) layer of the platform targets fourth generation wireless networks and thus uses orthogonal frequency division multiple access (OFDMA) together with multiple-input multiple-output (MIMO) techniques. The current hardware supports 5 MHz bandwidth and two transmit/receive antennas. The media access (MAC) layer of the platform supports an abundant two-way signaling for enabling collaboration, scheduling protocols, as well as traffic and channel measurements. In this paper, we focus on the mesh topology and show how to implement a single-frequency mesh network with OpenAirInterface. The key ingredients to enable such a network are a dual-stream MIMO receiver structure and a distributed network synchronization algorithm. We show how to implement these two algorithms in real-time on the OpenAirInterface platform. Further more, we provide results from field trials and compare them to the simulation results.

Published
2010
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