X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/ThesisAli.git/blobdiff_plain/efa13c49ab1c7455dff14995c722caded700073f..b90ddc92fe317cadc93b6130e57ef6368cd53569:/Thesis.toc?ds=sidebyside diff --git a/Thesis.toc b/Thesis.toc index a32a98b..2add095 100644 --- a/Thesis.toc +++ b/Thesis.toc @@ -1,121 +1,107 @@ \select@language {english} -\contentsline {chapter}{Table of Contents}{4}{chapter*.1} -\contentsline {chapter}{List of Figures}{6}{chapter*.2} -\contentsline {chapter}{List of Tables}{7}{chapter*.3} -\contentsline {chapter}{List of Algorithms}{9}{chapter*.4} -\contentsline {chapter}{Introduction }{11}{chapter*.5} -\contentsline {section}{\numberline {0.1}General Introduction}{11}{section.0.1} -\contentsline {section}{\numberline {0.2}Motivation of the Dissertation}{12}{section.0.2} -\contentsline {section}{\numberline {0.3}The Objective of this Dissertation}{12}{section.0.3} -\contentsline {section}{\numberline {0.4}The main Contributions of this Dissertation}{13}{section.0.4} -\contentsline {section}{\numberline {0.5}Dissertation Outline}{14}{section.0.5} -\contentsline {part}{I\hspace {1em}Scientific Background}{15}{part.1} -\contentsline {chapter}{\numberline {1}Wireless Sensor Networks}{17}{chapter.1} -\contentsline {section}{\numberline {1.1}Introduction}{17}{section.1.1} -\contentsline {section}{\numberline {1.2}Wireless Sensor Network Architecture}{18}{section.1.2} -\contentsline {section}{\numberline {1.3}Types of Wireless Sensor Networks}{20}{section.1.3} -\contentsline {section}{\numberline {1.4}Wireless Sensor Network Applications}{22}{section.1.4} -\contentsline {section}{\numberline {1.5}The Main Challenges in Wireless Sensor Networks}{25}{section.1.5} -\contentsline {section}{\numberline {1.6}Energy-Efficient Mechanisms in Wireless Sensor Networks}{27}{section.1.6} -\contentsline {subsection}{\numberline {1.6.1}Energy-Efficient Routing:}{27}{subsection.1.6.1} -\contentsline {subsubsection}{\numberline {1.6.1.1}Routing Metric based on Residual Energy:}{28}{subsubsection.1.6.1.1} -\contentsline {subsubsection}{\numberline {1.6.1.2}Multipath Routing:}{28}{subsubsection.1.6.1.2} -\contentsline {subsection}{\numberline {1.6.2}Cluster Architectures:}{28}{subsection.1.6.2} -\contentsline {subsection}{\numberline {1.6.3}Scheduling Schemes:}{29}{subsection.1.6.3} -\contentsline {subsubsection}{\numberline {1.6.3.1}Wake up Scheduling Schemes:}{29}{subsubsection.1.6.3.1} -\contentsline {subsubsection}{\numberline {1.6.3.2}Topology Control Schemes:}{31}{subsubsection.1.6.3.2} -\contentsline {subsection}{\numberline {1.6.4}Data-Driven Schemes:}{32}{subsection.1.6.4} -\contentsline {subsubsection}{\numberline {1.6.4.1}Data Reduction Schemes}{32}{subsubsection.1.6.4.1} -\contentsline {subsubsection}{\numberline {1.6.4.2}Energy Efficient Data Acquisition Schemes}{32}{subsubsection.1.6.4.2} -\contentsline {subsection}{\numberline {1.6.5}Battery Repletion:}{33}{subsection.1.6.5} -\contentsline {subsubsection}{\numberline {1.6.5.1}Energy Harvesting:}{33}{subsubsection.1.6.5.1} -\contentsline {subsubsection}{\numberline {1.6.5.2}Wireless Charging:}{33}{subsubsection.1.6.5.2} -\contentsline {subsection}{\numberline {1.6.6}Radio Optimization:}{33}{subsection.1.6.6} -\contentsline {subsection}{\numberline {1.6.7}Relay nodes and Sink Mobility:}{33}{subsection.1.6.7} -\contentsline {subsubsection}{\numberline {1.6.7.1}Relay node placement:}{34}{subsubsection.1.6.7.1} -\contentsline {subsubsection}{\numberline {1.6.7.2}Sink Mobility:}{34}{subsubsection.1.6.7.2} -\contentsline {section}{\numberline {1.7}Network Lifetime in Wireless Sensor Networks}{34}{section.1.7} -\contentsline {section}{\numberline {1.8}Coverage in Wireless Sensor Networks }{35}{section.1.8} -\contentsline {section}{\numberline {1.9}Design Issues for Coverage Problems:}{36}{section.1.9} -\contentsline {section}{\numberline {1.10}Energy Consumption Modeling:}{37}{section.1.10} -\contentsline {section}{\numberline {1.11}Conclusion}{39}{section.1.11} -\contentsline {chapter}{\numberline {2}Related Literatures}{41}{chapter.2} -\contentsline {section}{\numberline {2.1}Introduction}{41}{section.2.1} -\contentsline {section}{\numberline {2.2}Coverage Algorithms}{42}{section.2.2} -\contentsline {subsection}{\numberline {2.2.1}Centralized Algorithms}{43}{subsection.2.2.1} -\contentsline {subsection}{\numberline {2.2.2}Distributed Algorithms}{45}{subsection.2.2.2} -\contentsline {section}{\numberline {2.3}Conclusion}{48}{section.2.3} -\contentsline {part}{II\hspace {1em}Contributions}{51}{part.2} -\contentsline {chapter}{\numberline {3}Distributed Lifetime Coverage Optimization Protocol in Wireless Sensor Networks}{53}{chapter.3} -\contentsline {section}{\numberline {3.1}Summary}{53}{section.3.1} -\contentsline {section}{\numberline {3.2}DESCRIPTION OF THE DILCO PROTOCOL}{53}{section.3.2} -\contentsline {subsection}{\numberline {3.2.1}Assumptions and Network Model}{53}{subsection.3.2.1} -\contentsline {subsection}{\numberline {3.2.2}Primary Point Coverage Model}{54}{subsection.3.2.2} -\contentsline {subsection}{\numberline {3.2.3}Main Idea}{55}{subsection.3.2.3} -\contentsline {subsubsection}{\numberline {3.2.3.1}Information Exchange Phase}{56}{subsubsection.3.2.3.1} -\contentsline {subsubsection}{\numberline {3.2.3.2}Leader Election Phase}{57}{subsubsection.3.2.3.2} -\contentsline {subsubsection}{\numberline {3.2.3.3}Decision phase}{57}{subsubsection.3.2.3.3} -\contentsline {subsubsection}{\numberline {3.2.3.4}Sensing phase}{57}{subsubsection.3.2.3.4} -\contentsline {section}{\numberline {3.3}COVERAGE PROBLEM FORMULATION}{57}{section.3.3} -\contentsline {section}{\numberline {3.4}Simulation Results and Analysis}{59}{section.3.4} -\contentsline {subsection}{\numberline {3.4.1}Simulation Framework}{59}{subsection.3.4.1} -\contentsline {subsection}{\numberline {3.4.2}Modeling Language and Optimization Solver}{60}{subsection.3.4.2} -\contentsline {subsection}{\numberline {3.4.3}Energy Consumption Model}{60}{subsection.3.4.3} -\contentsline {subsection}{\numberline {3.4.4}Performance Metrics}{61}{subsection.3.4.4} -\contentsline {subsection}{\numberline {3.4.5}Performance Analysis for Different Subregions}{62}{subsection.3.4.5} -\contentsline {subsubsection}{\numberline {3.4.5.1}Coverage Ratio}{62}{subsubsection.3.4.5.1} -\contentsline {subsubsection}{\numberline {3.4.5.2}Active Sensors Ratio}{62}{subsubsection.3.4.5.2} -\contentsline {subsubsection}{\numberline {3.4.5.3}The percentage of stopped simulation runs}{63}{subsubsection.3.4.5.3} -\contentsline {subsubsection}{\numberline {3.4.5.4}The Energy Consumption}{64}{subsubsection.3.4.5.4} -\contentsline {subsubsection}{\numberline {3.4.5.5}Execution Time}{65}{subsubsection.3.4.5.5} -\contentsline {subsubsection}{\numberline {3.4.5.6}The Network Lifetime}{66}{subsubsection.3.4.5.6} -\contentsline {subsection}{\numberline {3.4.6}Performance Analysis for Primary Point Models}{67}{subsection.3.4.6} -\contentsline {subsubsection}{\numberline {3.4.6.1}Coverage Ratio}{67}{subsubsection.3.4.6.1} -\contentsline {subsubsection}{\numberline {3.4.6.2}Active Sensors Ratio}{68}{subsubsection.3.4.6.2} -\contentsline {subsubsection}{\numberline {3.4.6.3}The percentage of stopped simulation runs}{69}{subsubsection.3.4.6.3} -\contentsline {subsubsection}{\numberline {3.4.6.4}The Energy Consumption}{69}{subsubsection.3.4.6.4} -\contentsline {subsubsection}{\numberline {3.4.6.5}Execution Time}{70}{subsubsection.3.4.6.5} -\contentsline {subsubsection}{\numberline {3.4.6.6}The Network Lifetime}{71}{subsubsection.3.4.6.6} -\contentsline {subsection}{\numberline {3.4.7}Performance Comparison with other Approaches}{71}{subsection.3.4.7} -\contentsline {subsubsection}{\numberline {3.4.7.1}Coverage Ratio}{72}{subsubsection.3.4.7.1} -\contentsline {subsubsection}{\numberline {3.4.7.2}Active Sensors Ratio}{73}{subsubsection.3.4.7.2} -\contentsline {subsubsection}{\numberline {3.4.7.3}The percentage of stopped simulation runs}{74}{subsubsection.3.4.7.3} -\contentsline {subsubsection}{\numberline {3.4.7.4}The Energy Consumption}{74}{subsubsection.3.4.7.4} -\contentsline {subsubsection}{\numberline {3.4.7.5}The Network Lifetime}{76}{subsubsection.3.4.7.5} -\contentsline {section}{\numberline {3.5}Conclusion}{77}{section.3.5} -\contentsline {chapter}{\numberline {4}Multiround Distributed Lifetime Coverage Optimization Protocol in Wireless Sensor Networks}{79}{chapter.4} -\contentsline {section}{\numberline {4.1}Summary}{79}{section.4.1} -\contentsline {section}{\numberline {4.2}MuDiLCO protocol description}{79}{section.4.2} -\contentsline {subsection}{\numberline {4.2.1}Background Idea}{79}{subsection.4.2.1} -\contentsline {subsection}{\numberline {4.2.2}Information Exchange Phase}{80}{subsection.4.2.2} -\contentsline {subsection}{\numberline {4.2.3}Leader Election phase}{80}{subsection.4.2.3} -\contentsline {subsection}{\numberline {4.2.4}Decision phase}{81}{subsection.4.2.4} -\contentsline {subsection}{\numberline {4.2.5}Sensing phase}{82}{subsection.4.2.5} -\contentsline {section}{\numberline {4.3}Experimental Study and Analysis}{82}{section.4.3} -\contentsline {subsection}{\numberline {4.3.1}Simulation Setup}{82}{subsection.4.3.1} -\contentsline {subsection}{\numberline {4.3.2}Metrics}{83}{subsection.4.3.2} -\contentsline {subsection}{\numberline {4.3.3}Results analysis and Comparison }{85}{subsection.4.3.3} -\contentsline {subsection}{\numberline {4.3.4}Coverage ratio}{85}{subsection.4.3.4} -\contentsline {subsection}{\numberline {4.3.5}Active sensors ratio}{85}{subsection.4.3.5} -\contentsline {subsection}{\numberline {4.3.6}Stopped simulation runs}{86}{subsection.4.3.6} -\contentsline {subsection}{\numberline {4.3.7}Energy consumption}{87}{subsection.4.3.7} -\contentsline {subsection}{\numberline {4.3.8}Execution time}{87}{subsection.4.3.8} -\contentsline {subsection}{\numberline {4.3.9}Network lifetime}{88}{subsection.4.3.9} -\contentsline {section}{\numberline {4.4}Conclusion}{88}{section.4.4} -\contentsline {chapter}{\numberline {5}Perimeter-based Coverage Optimization to Improve Lifetime in Wireless Sensor Networks}{91}{chapter.5} -\contentsline {section}{\numberline {5.1}summary}{91}{section.5.1} -\contentsline {section}{\numberline {5.2}THE PeCO PROTOCOL DESCRIPTION}{91}{section.5.2} -\contentsline {subsection}{\numberline {5.2.1}Assumptions and Models}{91}{subsection.5.2.1} -\contentsline {subsection}{\numberline {5.2.2}The Main Idea}{94}{subsection.5.2.2} -\contentsline {subsection}{\numberline {5.2.3}PeCO Protocol Algorithm}{95}{subsection.5.2.3} -\contentsline {section}{\numberline {5.3}Perimeter-based Coverage Problem Formulation}{96}{section.5.3} -\contentsline {section}{\numberline {5.4}Performance Evaluation and Analysis}{98}{section.5.4} -\contentsline {subsection}{\numberline {5.4.1}Simulation Settings}{98}{subsection.5.4.1} -\contentsline {subsection}{\numberline {5.4.2}Simulation Results}{98}{subsection.5.4.2} -\contentsline {subsubsection}{\numberline {5.4.2.1}Coverage Ratio}{99}{subsubsection.5.4.2.1} -\contentsline {subsubsection}{\numberline {5.4.2.2}Active Sensors Ratio}{99}{subsubsection.5.4.2.2} -\contentsline {subsubsection}{\numberline {5.4.2.3}The Energy Consumption}{100}{subsubsection.5.4.2.3} -\contentsline {subsubsection}{\numberline {5.4.2.4}The Network Lifetime}{100}{subsubsection.5.4.2.4} -\contentsline {section}{\numberline {5.5}Conclusion}{101}{section.5.5} -\contentsline {part}{III\hspace {1em}Conclusion and Perspectives}{103}{part.3} -\contentsline {part}{Bibliographie}{114}{chapter*.6} +\contentsline {chapter}{Abstract}{1}{chapter*.1} +\contentsline {chapter}{R\IeC {\'e}sum\IeC {\'e}}{3}{chapter*.2} +\contentsline {chapter}{Table of Contents}{8}{chapter*.3} +\contentsline {chapter}{List of Figures}{10}{chapter*.4} +\contentsline {chapter}{List of Tables}{11}{chapter*.5} +\contentsline {chapter}{List of Algorithms}{13}{chapter*.6} +\contentsline {chapter}{List of Abbreviations}{15}{chapter*.7} +\contentsline {chapter}{Introduction }{19}{chapter*.8} +\contentsline {section}{1. General Introduction }{19}{section*.9} +\contentsline {section}{2. Motivation of the Dissertation }{20}{section*.10} +\contentsline {section}{3. The Objective of this Dissertation}{20}{section*.11} +\contentsline {section}{4. Main Contributions of this Dissertation}{20}{section*.12} +\contentsline {section}{5. Dissertation Outline}{22}{section*.13} +\contentsline {part}{I\hspace {1em}Scientific Background}{23}{part.1} +\contentsline {chapter}{\numberline {1}Wireless Sensor Networks}{25}{chapter.1} +\contentsline {section}{\numberline {1.1}Introduction}{25}{section.1.1} +\contentsline {section}{\numberline {1.2}Architecture}{26}{section.1.2} +\contentsline {section}{\numberline {1.3}Types of Wireless Sensor Networks}{28}{section.1.3} +\contentsline {section}{\numberline {1.4}Applications}{30}{section.1.4} +\contentsline {section}{\numberline {1.5}The Main Challenges}{33}{section.1.5} +\contentsline {section}{\numberline {1.6}Energy-Efficient Mechanisms of a working WSN}{35}{section.1.6} +\contentsline {subsection}{\numberline {1.6.1}Energy-Efficient Routing}{35}{subsection.1.6.1} +\contentsline {subsubsection}{\numberline {1.6.1.1}Routing Metric based on Residual Energy}{35}{subsubsection.1.6.1.1} +\contentsline {subsubsection}{\numberline {1.6.1.2}Multipath Routing}{35}{subsubsection.1.6.1.2} +\contentsline {subsection}{\numberline {1.6.2}Cluster Architecture}{36}{subsection.1.6.2} +\contentsline {subsection}{\numberline {1.6.3}Scheduling Schemes}{36}{subsection.1.6.3} +\contentsline {subsubsection}{\numberline {1.6.3.1}Wake up Scheduling Schemes}{36}{subsubsection.1.6.3.1} +\contentsline {subsubsection}{\numberline {1.6.3.2}Topology Control Schemes}{39}{subsubsection.1.6.3.2} +\contentsline {subsection}{\numberline {1.6.4}Data-Driven Schemes}{39}{subsection.1.6.4} +\contentsline {subsubsection}{\numberline {1.6.4.1}Data Reduction Schemes}{40}{subsubsection.1.6.4.1} +\contentsline {subsubsection}{\numberline {1.6.4.2}Energy Efficient Data Acquisition Schemes}{40}{subsubsection.1.6.4.2} +\contentsline {subsection}{\numberline {1.6.5}Battery Repletion}{40}{subsection.1.6.5} +\contentsline {subsection}{\numberline {1.6.6}Radio Optimization}{40}{subsection.1.6.6} +\contentsline {subsection}{\numberline {1.6.7}Relay nodes and Sink Mobility}{41}{subsection.1.6.7} +\contentsline {subsubsection}{\numberline {1.6.7.1}Relay node placement}{41}{subsubsection.1.6.7.1} +\contentsline {subsubsection}{\numberline {1.6.7.2}Sink Mobility}{41}{subsubsection.1.6.7.2} +\contentsline {section}{\numberline {1.7}Network Lifetime}{41}{section.1.7} +\contentsline {section}{\numberline {1.8}Coverage in Wireless Sensor Networks }{42}{section.1.8} +\contentsline {section}{\numberline {1.9}Design Issues for Coverage Problems}{44}{section.1.9} +\contentsline {section}{\numberline {1.10}Energy Consumption Model}{45}{section.1.10} +\contentsline {section}{\numberline {1.11}Conclusion}{46}{section.1.11} +\contentsline {chapter}{\numberline {2}Related Works on Coverage Problems}{47}{chapter.2} +\contentsline {section}{\numberline {2.1}Introduction}{47}{section.2.1} +\contentsline {section}{\numberline {2.2}Centralized Algorithms}{50}{section.2.2} +\contentsline {section}{\numberline {2.3}Distributed Algorithms}{53}{section.2.3} +\contentsline {subsection}{\numberline {2.3.1}Geographical Adaptive Fidelity (GAF)}{54}{subsection.2.3.1} +\contentsline {subsection}{\numberline {2.3.2}Distributed Energy-efficient Scheduling for K-coverage (DESK)}{56}{subsection.2.3.2} +\contentsline {section}{\numberline {2.4}Conclusion}{59}{section.2.4} +\contentsline {chapter}{\numberline {3}Evaluation Tools and Optimization Solvers}{61}{chapter.3} +\contentsline {section}{\numberline {3.1}Introduction}{61}{section.3.1} +\contentsline {section}{\numberline {3.2}Evaluation Tools}{61}{section.3.2} +\contentsline {subsection}{\numberline {3.2.1}Testbed Tools}{62}{subsection.3.2.1} +\contentsline {subsection}{\numberline {3.2.2}Simulation Tools}{63}{subsection.3.2.2} +\contentsline {section}{\numberline {3.3}Optimization Solvers}{68}{section.3.3} +\contentsline {section}{\numberline {3.4}Conclusion}{71}{section.3.4} +\contentsline {part}{II\hspace {1em}Contributions}{73}{part.2} +\contentsline {chapter}{\numberline {4}Distributed Lifetime Coverage Optimization Protocol in Wireless Sensor Networks}{75}{chapter.4} +\contentsline {section}{\numberline {4.1}Introduction}{75}{section.4.1} +\contentsline {section}{\numberline {4.2}Description of the DiLCO Protocol}{76}{section.4.2} +\contentsline {subsection}{\numberline {4.2.1}Assumptions and Network Model}{76}{subsection.4.2.1} +\contentsline {subsection}{\numberline {4.2.2}Primary Point Coverage Model}{77}{subsection.4.2.2} +\contentsline {subsection}{\numberline {4.2.3}Main Idea}{78}{subsection.4.2.3} +\contentsline {subsubsection}{\numberline {4.2.3.1}Information Exchange Phase}{79}{subsubsection.4.2.3.1} +\contentsline {subsubsection}{\numberline {4.2.3.2}Leader Election Phase}{79}{subsubsection.4.2.3.2} +\contentsline {subsubsection}{\numberline {4.2.3.3}Decision phase}{79}{subsubsection.4.2.3.3} +\contentsline {subsubsection}{\numberline {4.2.3.4}Sensing phase}{79}{subsubsection.4.2.3.4} +\contentsline {section}{\numberline {4.3}Primary Points based Coverage Problem Formulation}{80}{section.4.3} +\contentsline {section}{\numberline {4.4}Simulation Results and Analysis}{82}{section.4.4} +\contentsline {subsection}{\numberline {4.4.1}Simulation Framework}{82}{subsection.4.4.1} +\contentsline {subsection}{\numberline {4.4.2}Modeling Language and Optimization Solver}{82}{subsection.4.4.2} +\contentsline {subsection}{\numberline {4.4.3}Energy Consumption Model}{82}{subsection.4.4.3} +\contentsline {subsection}{\numberline {4.4.4}Performance Metrics}{83}{subsection.4.4.4} +\contentsline {subsection}{\numberline {4.4.5}Performance Analysis for Different Subregions}{84}{subsection.4.4.5} +\contentsline {subsection}{\numberline {4.4.6}Performance Analysis for Primary Point Models}{90}{subsection.4.4.6} +\contentsline {subsection}{\numberline {4.4.7}Performance Comparison with other Approaches}{95}{subsection.4.4.7} +\contentsline {section}{\numberline {4.5}Conclusion}{101}{section.4.5} +\contentsline {chapter}{\numberline {5}Multiround Distributed Lifetime Coverage Optimization Protocol in Wireless Sensor Networks}{103}{chapter.5} +\contentsline {section}{\numberline {5.1}Introduction}{103}{section.5.1} +\contentsline {section}{\numberline {5.2}MuDiLCO Protocol Description}{104}{section.5.2} +\contentsline {subsection}{\numberline {5.2.1}Background Idea and Algorithm}{104}{subsection.5.2.1} +\contentsline {section}{\numberline {5.3}Primary Points based Multiround Coverage Problem Formulation}{105}{section.5.3} +\contentsline {section}{\numberline {5.4}Experimental Study and Analysis}{107}{section.5.4} +\contentsline {subsection}{\numberline {5.4.1}Simulation Setup}{107}{subsection.5.4.1} +\contentsline {subsection}{\numberline {5.4.2}Metrics}{108}{subsection.5.4.2} +\contentsline {subsection}{\numberline {5.4.3}Results Analysis and Comparison }{109}{subsection.5.4.3} +\contentsline {section}{\numberline {5.5}Conclusion}{114}{section.5.5} +\contentsline {chapter}{\numberline {6}Perimeter-based Coverage Optimization to Improve Lifetime in Wireless Sensor Networks}{117}{chapter.6} +\contentsline {section}{\numberline {6.1}Introduction}{117}{section.6.1} +\contentsline {section}{\numberline {6.2}The PeCO Protocol Description}{118}{section.6.2} +\contentsline {subsection}{\numberline {6.2.1}Assumptions and Models}{118}{subsection.6.2.1} +\contentsline {subsection}{\numberline {6.2.2}The Main Idea}{121}{subsection.6.2.2} +\contentsline {subsection}{\numberline {6.2.3}PeCO Protocol Algorithm}{121}{subsection.6.2.3} +\contentsline {section}{\numberline {6.3}Perimeter-based Coverage Problem Formulation}{122}{section.6.3} +\contentsline {section}{\numberline {6.4}Performance Evaluation and Analysis}{124}{section.6.4} +\contentsline {subsection}{\numberline {6.4.1}Simulation Settings}{124}{subsection.6.4.1} +\contentsline {subsection}{\numberline {6.4.2}Simulation Results}{125}{subsection.6.4.2} +\contentsline {subsubsection}{\numberline {6.4.2.1}Coverage Ratio}{126}{subsubsection.6.4.2.1} +\contentsline {subsubsection}{\numberline {6.4.2.2}Active Sensors Ratio}{126}{subsubsection.6.4.2.2} +\contentsline {subsubsection}{\numberline {6.4.2.3}The Energy Consumption}{127}{subsubsection.6.4.2.3} +\contentsline {subsubsection}{\numberline {6.4.2.4}The Network Lifetime}{127}{subsubsection.6.4.2.4} +\contentsline {section}{\numberline {6.5}Conclusion}{130}{section.6.5} +\contentsline {part}{III\hspace {1em}Conclusion and Perspectives}{131}{part.3} +\contentsline {chapter}{\numberline {7}Conclusion and Perspectives}{133}{chapter.7} +\contentsline {section}{\numberline {7.1}Conclusion}{133}{section.7.1} +\contentsline {section}{\numberline {7.2}Perspectives}{134}{section.7.2} +\contentsline {part}{Bibliographie}{150}{chapter*.14}