1 \select@language {english}
2 \contentsline {chapter}{Abstract}{1}{chapter*.1}
3 \contentsline {chapter}{R\IeC {\'e}sum\IeC {\'e}}{3}{chapter*.2}
4 \contentsline {chapter}{Table of Contents}{8}{chapter*.3}
5 \contentsline {chapter}{List of Figures}{10}{chapter*.4}
6 \contentsline {chapter}{List of Tables}{11}{chapter*.5}
7 \contentsline {chapter}{List of Algorithms}{13}{chapter*.6}
8 \contentsline {chapter}{List of Abbreviations}{15}{chapter*.7}
9 \contentsline {chapter}{Introduction }{19}{chapter*.8}
10 \contentsline {section}{1. General Introduction }{19}{section*.9}
11 \contentsline {section}{2. Motivation of the Dissertation }{20}{section*.10}
12 \contentsline {section}{3. Main Contributions of this Dissertation}{20}{section*.11}
13 \contentsline {section}{4. Dissertation Outline}{21}{section*.12}
14 \contentsline {part}{I\hspace {1em}Scientific Background}{23}{part.1}
15 \contentsline {chapter}{\numberline {1}Wireless Sensor Networks}{25}{chapter.1}
16 \contentsline {section}{\numberline {1.1}Introduction}{25}{section.1.1}
17 \contentsline {section}{\numberline {1.2}Architecture}{26}{section.1.2}
18 \contentsline {section}{\numberline {1.3}Types of Wireless Sensor Networks}{28}{section.1.3}
19 \contentsline {section}{\numberline {1.4}Applications}{30}{section.1.4}
20 \contentsline {section}{\numberline {1.5}The Main Challenges}{33}{section.1.5}
21 \contentsline {section}{\numberline {1.6}Energy-Efficient Mechanisms of a working WSN}{35}{section.1.6}
22 \contentsline {subsection}{\numberline {1.6.1}Energy-Efficient Routing}{35}{subsection.1.6.1}
23 \contentsline {subsubsection}{\numberline {1.6.1.1}Routing Metric based on Residual Energy}{35}{subsubsection.1.6.1.1}
24 \contentsline {subsubsection}{\numberline {1.6.1.2}Multipath Routing}{35}{subsubsection.1.6.1.2}
25 \contentsline {subsection}{\numberline {1.6.2}Cluster Architecture}{36}{subsection.1.6.2}
26 \contentsline {subsection}{\numberline {1.6.3}Scheduling Schemes}{36}{subsection.1.6.3}
27 \contentsline {subsubsection}{\numberline {1.6.3.1}Wake up Scheduling Schemes}{36}{subsubsection.1.6.3.1}
28 \contentsline {subsubsection}{\numberline {1.6.3.2}Topology Control Schemes}{39}{subsubsection.1.6.3.2}
29 \contentsline {subsection}{\numberline {1.6.4}Data-Driven Schemes}{39}{subsection.1.6.4}
30 \contentsline {subsubsection}{\numberline {1.6.4.1}Data Reduction Schemes}{40}{subsubsection.1.6.4.1}
31 \contentsline {subsubsection}{\numberline {1.6.4.2}Energy Efficient Data Acquisition Schemes}{40}{subsubsection.1.6.4.2}
32 \contentsline {subsection}{\numberline {1.6.5}Battery Repletion}{40}{subsection.1.6.5}
33 \contentsline {subsection}{\numberline {1.6.6}Radio Optimization}{40}{subsection.1.6.6}
34 \contentsline {subsection}{\numberline {1.6.7}Relay nodes and Sink Mobility}{41}{subsection.1.6.7}
35 \contentsline {subsubsection}{\numberline {1.6.7.1}Relay node placement}{41}{subsubsection.1.6.7.1}
36 \contentsline {subsubsection}{\numberline {1.6.7.2}Sink Mobility}{41}{subsubsection.1.6.7.2}
37 \contentsline {section}{\numberline {1.7}Network Lifetime}{41}{section.1.7}
38 \contentsline {section}{\numberline {1.8}Coverage in Wireless Sensor Networks }{42}{section.1.8}
39 \contentsline {section}{\numberline {1.9}Design Issues for Coverage Problems}{44}{section.1.9}
40 \contentsline {section}{\numberline {1.10}Energy Consumption Model}{45}{section.1.10}
41 \contentsline {section}{\numberline {1.11}Conclusion}{46}{section.1.11}
42 \contentsline {chapter}{\numberline {2}Related Works on Coverage Problems}{47}{chapter.2}
43 \contentsline {section}{\numberline {2.1}Introduction}{47}{section.2.1}
44 \contentsline {section}{\numberline {2.2}Centralized Algorithms}{49}{section.2.2}
45 \contentsline {section}{\numberline {2.3}Distributed Algorithms}{51}{section.2.3}
46 \contentsline {subsection}{\numberline {2.3.1}Geographical Adaptive Fidelity (GAF)}{53}{subsection.2.3.1}
47 \contentsline {subsection}{\numberline {2.3.2}Distributed Energy-efficient Scheduling for K-coverage (DESK)}{55}{subsection.2.3.2}
48 \contentsline {section}{\numberline {2.4}Conclusion}{59}{section.2.4}
49 \contentsline {chapter}{\numberline {3}Evaluation Tools and Optimization Solvers}{61}{chapter.3}
50 \contentsline {section}{\numberline {3.1}Introduction}{61}{section.3.1}
51 \contentsline {section}{\numberline {3.2}Evaluation Tools}{61}{section.3.2}
52 \contentsline {subsection}{\numberline {3.2.1}Testbed Tools}{62}{subsection.3.2.1}
53 \contentsline {subsection}{\numberline {3.2.2}Simulation Tools}{64}{subsection.3.2.2}
54 \contentsline {section}{\numberline {3.3}Optimization Solvers}{66}{section.3.3}
55 \contentsline {section}{\numberline {3.4}Conclusion}{70}{section.3.4}
56 \contentsline {part}{II\hspace {1em}Contributions}{71}{part.2}
57 \contentsline {chapter}{\numberline {4}Distributed Lifetime Coverage Optimization Protocol}{73}{chapter.4}
58 \contentsline {section}{\numberline {4.1}Introduction}{73}{section.4.1}
59 \contentsline {section}{\numberline {4.2}Description of the DiLCO Protocol}{74}{section.4.2}
60 \contentsline {subsection}{\numberline {4.2.1}Assumptions and Network Model}{74}{subsection.4.2.1}
61 \contentsline {subsection}{\numberline {4.2.2}Primary Point Coverage Model}{75}{subsection.4.2.2}
62 \contentsline {subsection}{\numberline {4.2.3}Main Idea}{75}{subsection.4.2.3}
63 \contentsline {subsubsection}{\numberline {4.2.3.1}Information Exchange Phase}{77}{subsubsection.4.2.3.1}
64 \contentsline {subsubsection}{\numberline {4.2.3.2}Leader Election Phase}{77}{subsubsection.4.2.3.2}
65 \contentsline {subsubsection}{\numberline {4.2.3.3}Decision phase}{78}{subsubsection.4.2.3.3}
66 \contentsline {subsubsection}{\numberline {4.2.3.4}Sensing phase}{78}{subsubsection.4.2.3.4}
67 \contentsline {section}{\numberline {4.3}Coverage Problem Formulation}{79}{section.4.3}
68 \contentsline {section}{\numberline {4.4}Simulation Results and Analysis}{80}{section.4.4}
69 \contentsline {subsection}{\numberline {4.4.1}Simulation Framework}{80}{subsection.4.4.1}
70 \contentsline {subsection}{\numberline {4.4.2}Modeling Language and Optimization Solver}{80}{subsection.4.4.2}
71 \contentsline {subsection}{\numberline {4.4.3}Energy Consumption Model}{81}{subsection.4.4.3}
72 \contentsline {subsection}{\numberline {4.4.4}Performance Metrics}{81}{subsection.4.4.4}
73 \contentsline {subsection}{\numberline {4.4.5}Performance Analysis for Different Number of Subregions}{83}{subsection.4.4.5}
74 \contentsline {subsection}{\numberline {4.4.6}Performance Analysis for Different Number of Primary Points}{89}{subsection.4.4.6}
75 \contentsline {subsection}{\numberline {4.4.7}Performance Comparison with other Approaches}{93}{subsection.4.4.7}
76 \contentsline {section}{\numberline {4.5}Conclusion}{100}{section.4.5}
77 \contentsline {chapter}{\numberline {5}Multiround Distributed Lifetime Coverage Optimization Protocol}{101}{chapter.5}
78 \contentsline {section}{\numberline {5.1}Introduction}{101}{section.5.1}
79 \contentsline {section}{\numberline {5.2}Description of the MuDiLCO Protocol }{101}{section.5.2}
80 \contentsline {section}{\numberline {5.3}Primary Points based Multiround Coverage Problem Formulation}{103}{section.5.3}
81 \contentsline {section}{\numberline {5.4}Experimental Study and Analysis}{104}{section.5.4}
82 \contentsline {subsection}{\numberline {5.4.1}Simulation Setup}{104}{subsection.5.4.1}
83 \contentsline {subsection}{\numberline {5.4.2}Metrics}{104}{subsection.5.4.2}
84 \contentsline {subsection}{\numberline {5.4.3}Results Analysis and Comparison }{105}{subsection.5.4.3}
85 \contentsline {section}{\numberline {5.5}Conclusion}{112}{section.5.5}
86 \contentsline {chapter}{\numberline {6} Perimeter-based Coverage Optimization to Improve Lifetime in WSNs}{113}{chapter.6}
87 \contentsline {section}{\numberline {6.1}Introduction}{113}{section.6.1}
88 \contentsline {section}{\numberline {6.2}Description of the PeCO Protocol}{113}{section.6.2}
89 \contentsline {subsection}{\numberline {6.2.1}Assumptions and Models}{113}{subsection.6.2.1}
90 \contentsline {subsection}{\numberline {6.2.2}PeCO Protocol Algorithm}{116}{subsection.6.2.2}
91 \contentsline {section}{\numberline {6.3}Perimeter-based Coverage Problem Formulation}{118}{section.6.3}
92 \contentsline {section}{\numberline {6.4}Performance Evaluation and Analysis}{119}{section.6.4}
93 \contentsline {subsection}{\numberline {6.4.1}Simulation Settings}{119}{subsection.6.4.1}
94 \contentsline {subsection}{\numberline {6.4.2}Simulation Results}{120}{subsection.6.4.2}
95 \contentsline {subsubsection}{\numberline {6.4.2.1}Coverage Ratio}{120}{subsubsection.6.4.2.1}
96 \contentsline {subsubsection}{\numberline {6.4.2.2}Active Sensors Ratio}{120}{subsubsection.6.4.2.2}
97 \contentsline {subsubsection}{\numberline {6.4.2.3}Energy Consumption}{121}{subsubsection.6.4.2.3}
98 \contentsline {subsubsection}{\numberline {6.4.2.4}Network Lifetime}{121}{subsubsection.6.4.2.4}
99 \contentsline {subsubsection}{\numberline {6.4.2.5}Impact of $\alpha $ and $\beta $ on PeCO's performance}{122}{subsubsection.6.4.2.5}
100 \contentsline {section}{\numberline {6.5}Conclusion}{126}{section.6.5}
101 \contentsline {part}{III\hspace {1em}Conclusion and Perspectives}{127}{part.3}
102 \contentsline {chapter}{\numberline {7}Conclusion and Perspectives}{129}{chapter.7}
103 \contentsline {section}{\numberline {7.1}Conclusion}{129}{section.7.1}
104 \contentsline {section}{\numberline {7.2}Perspectives}{130}{section.7.2}
105 \contentsline {part}{Publications}{133}{chapter*.13}
106 \contentsline {part}{Bibliographie}{148}{chapter*.17}
