1 \chapter*{abbreviations \markboth{abbreviations}{abbreviations}}
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13 \item[WSN] Wireless Sensor Network
14 \item[DILCO] Distributed Lifetime Coverage Optimization
15 \item[MuDiLCO] Multiround Distributed Lifetime Coverage Optimization
16 \item[PeCO] Perimeter-based Coverage Optimization
17 \item[DESK] Distributed Energy-efficient Scheduling for K-coverage
18 \item[GAF] Geographical Adaptive Fidelity
19 \item[PDA] Personal Digital Assistant
20 \item[WLAN] Wireless Local-Area Network
21 \item[MEMS] Micro-Electro-Mechanical Systems
22 \item[ADC] Analog to Digital Converters
23 \item[VCO] Voltage-Controlled Oscillator
24 \item[PLL] Phase-Locked Loop
25 \item[GPS] Global Positioning System
26 \item[OS] Operating System
27 \item[CMOS] Complementary Metal-Oxide-Silicon
28 \item[MAV] Micro Aerial Vehicle
29 \item[ECG] Electrocardiogram
30 \item[SCADA] Supervisory Control and Data Acquisition