La nanocommunication est un nouveau paradigme qui permet de communiquer à l'échelle nanométrique, via des mécanismes moléculaires, électromagnétiques, acoustiques, ou nano-mécaniques. Le cadre général de cette thèse concerne les réseaux de nanocapteurs sans fil et les nanoréseaux sur puce. Plus précisément, il s'agit des architectures d'interconnexion et des protocoles de communication dans la bande de fréquence des Térahertz. En effet, les architectures réseaux et les protocoles de communication existants doivent être repensés en tenant compte des mécanismes de communication à l'échelle nanométrique.En premier lieu, nous nous sommes focalisés sur la nécessité de développer des approches de diffusion efficaces dans le contexte des réseaux de nanocapteurs sans fil. Une approche de diffusion efficace, issue d'une adaptation d'un protocole de la famille des protocoles d'inondation probabilistes, est présenté et son efficacité et validée par simulations à l'aide de Nano-Sim et NS3.En second lieu, une étude approfondie de l'impact des portées de transmission sur les performances du mécanisme de diffusion basé sur les ondes électromagnétiques à l'échelle nanométrique a été effectuée. Les résultats des simulations montrent que l'adaptation des portées des nano-noeuds permet de contrôler le mécanisme d'inondation et de réduire les redondances des paquets tout en augmentant les débits. Une approche adaptative de sélection de portées de transmission contrôlée au niveau des nano-noeuds est proposée. En dernier lieu, nous nous sommes attaqués à un troisième défi en examinant ce nouveau paradigme de nanocommunication dans le contexte de la conception des nanoréseaux sur puce (Network on Chip, NoC). / Nanocommunication is a new paradigm that enables connectivity at the nanoscale through molecular, electromagnetic, acoustic, or nanomechanical mechanisms. The general context of this thesis concerns wireless nanosensor networks and nanonetworks on chips. More precisely, the thesis deals with interconnection architectures and communication protocols in the terahertz band. The existing network architectures and communication protocols should be revisited taking into account the communication mechanisms at the nanoscale.First, dissemination approaches in the context of wireless nanosensor networks are addressed. An efficient broadcasting approach is presented and the simulation performance results with Nano-Sim and NS3 show that the proposed scheme is superior to flooding, especially in the cases of excessive broadcasts.Second, we investigated the impact of transmission ranges on the performance of broadcast mechanisms based on electromagnetic waves at the nanoscale. Adaptive transmission range of electromagnetic-based communication approaches are proposed. Simulations are conducted with fixed and adaptive transmission ranges to show the efficiency of the proposed approaches in terms of throughput and latency according to the network density.The third part addresses the hypothesis of using EM-based nanonetwok as an on-chip interconnect for SoCs.

This thesis focuses on the description of nanocommunication networks, models for wireless communication networks and the description of motion in nanocommunication networks. The practical part describes the settings of the simulation scenarios for the definition of Brownian motion. Description is made for the simulation software NS-3 and N3Sim. In this thesis, the measured results of the simulations are summarized in tables and graphs. From the measured results the regression analysis is prepared. General summary of the results is provided at the end of thise thesis.

Made available in DSpace on 2016-04-26T18:11:33Z (GMT). No. of bitstreams: 1 Renata Tavares da Silva Lemos.pdf: 2502157 bytes, checksum: dd9593f73582bfe234482fc695bf62c9 (MD5) Previous issue date: 2012-03-26 / This thesis discusses the contemporary developments of Mario Costa's aesthetics of communication in the context of nanoconvergence (the pervasive process of integration between digital, biological, computational and cognitive interfaces). Nanoconvergence is a historical event similar to the advent of cyberspace, which carries an equivalent potential for disruption. Just as Mario Costa's aesthetics of communication present a technological sublime which is mediated via technical images, we propose in this thesis the emergence of an aesthetics of nanocommunication, which proposes a nanotechnological sublime which is mediated through technological individuation.While Mario Costa's technological sublime relies entirely on the Kantian sublime, the nanotechnological sublime is inspired by the transimanent sublime of Schopenhauer. Mario Costa's technological sublime is connected to the virtual and to the digital reproducibility of imaging techniques. However, the nanotechnological sublime refers instead to the materiality and self-reproducibility of its principle of individuation. The nanotechnological principle of individuation acts as a transductive medium between unity of matter and the multiplicity of its material elements and compounds, as stated by Bainbridge, Stiegler and Simondon. The nanotechnological sublime is explored through three stages of research: scientific - research and presentation of the technoscientific achievements of nanotechnology; philosophical - analysis of the specificity of the sublime aesthetics peculiar to these advances in science, and artistic - research and analysis of nanoimages and the collaborative production of video art based on the concept of the nanosublime. Contemporary nanoimages reveal a nanotechnological imaginarium where references to alchemy and medieval ideology are present both in scientific discourse and the poetics of nanoart. The nanotechnological sublime belongs to the semiotic realm in which the visible and invisible are not in opposition, for the materiality of physical reality, established through quantum modulations nanotechnologically manipulated, is perfectly united with the immaterial lightness of the informational codes that enable nanoconvergence / Este trabalho aborda os desdobramentos contemporâneos da estética da comunicação de Mario Costa no contexto tecnocientífico da nanoconvergência (o processo de integração pervasiva entre interfaces digitais, biológicas, computacionais e cognitivas). A nanoconvergência é um acontecimento histórico, similar ao advento do ciberespaço, que apresenta potencial equivalente de disrupção. Assim como a estética da comunicação de Mario Costa apresenta um sublime tecnológico mediado através de imagens técnicas, propomos nesta tese o surgimento de uma estética da nanocomunicação, a qual, por sua vez, propõe um sublime nanotecnológico mediado através da individuação tecnológica. Enquanto o sublime tecnológico de Mario Costa se baseia inteiramente no sublime kantiano, o sublime nanotecnológico se inspira no sublime transimanente de Schopenhauer. Se o sublime tecnológico de Mario Costa está ligado à virtualidade e reprodutibilidade digital das imagens técnicas, temos que o sublime nanotecnológico se refere, ao invés, à materialidade e autorreprodutibilidade do seu princípio de individuação. O princípio de individuação nanotecnológico atua como meio transdutivo entre a unidade da matéria e a multiplicidade de seus elementos e compostos materiais, como nos apresentam Bainbridge, Stiegler e Simondon. O sublime nanotecnológico é explorado através de três etapas de pesquisa: científica levantamento e apresentação das fronteiras tecnocientíficas relacionadas à nanotecnologia; filosófica análise da especificidade do sublime que a estética peculiar aos avanços científicos nos evoca; e artística pesquisa e análise das imagens nanotecnológicas e produção colaborativa de vídeo-arte baseada no conceito do nanosublime. As nanoimagens nos revelam um imaginário nanotecnológico no qual referências à alquimia e ao ideário medieval estão presentes, tanto no discurso científico quanto nas poéticas da nanoarte. O sublime nanotecnológico pertence à dimensão semiótica em que o visível e o invisível não estão em oposição e nem caracterizam uma dualidade, pois a materialidade da realidade física, manipulável através das modulações quânticas da nanotecnologia, mostra-se perfeitamente coesa com a imaterialidade característica à leveza dos códigos informacionais da nanoconvergência