\chapter*{abbreviations \markboth{abbreviations}{abbreviations}}
\label{chap}
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+\addcontentsline{toc}{chapter}{List of Abbreviations}
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\item[DILCO] Distributed Lifetime Coverage Optimization
\item[MuDiLCO] Multiround Distributed Lifetime Coverage Optimization
\item[PeCO] Perimeter-based Coverage Optimization
+\item[OMNeT++] Objective Modular Network Testbed
\item[DESK] Distributed Energy-efficient Scheduling for K-coverage
\item[GAF] Geographical Adaptive Fidelity
\item[PDA] Personal Digital Assistant
\item[MAV] Micro Aerial Vehicle
\item[ECG] Electrocardiogram
\item[SCADA] Supervisory Control and Data Acquisition
-\item[]
-\item[]
-\item[]
-\item[]
+\item[QoS] Quality of Service
+\item[DSC] Disjoint Set Covers
+\item[MIP] Mixed Integer Programming
+\item[LP] Linear Programming
+\item[GAS] Geometrically based Activity Scheduling
+\item[NCG] Node Coverage Grouping
+\item[CG] Column Generation
+\item[MLP] Maximum-network Lifetime Problem
+\item[RMP] Restricted Master Problem
+\item[PS] Pricing Subproblem
+\item[GRASP] Greedy Randomized Adaptive Search Procedure
+\item[VNS] Variable Neighborhood Search
+\item[CSB] Cover Sets Balance
+\item[CNSC] Correlated Node Set Computing
+\item[HREF] High Residual Energy First
+\item[SHM] Structural Health Monitoring
+\item[ESA] Effective Sensing Area
+\item[MSCR] Maximum Sensing Coverage Region
+\item[DASSA] Distributed Adaptive Sleep Scheduling Algorithm
+\item[DTGA] Distributed Truncated Greedy Algorithm
+\item[FIT] Future Internet of the Things
+\item[GUI] Graphical User Interface
+\item[NED] NEtwork Description
+\item[ns-2] Network Simulator-2
+\item[OPNET] Optimized Network Engineering Tool
+\item[GloMoSim] Global Mobile System Simulator
+\item[SENSE] Sensor Network Simulator and Emulator
+\item[GTSNetS] Georgia Tech Sensor Network Simulator
+\item[GNU] GNU's Not Unix
+\item[LP] Linear Programming
+\item[GLPK] GNU Linear Programming Kit
+\item[MPS] Mathematical Programming System
+\item[COIN-OR] COmputational INfrastructure for Operations Research
+\item[BCP] Branch Cut and Price
+\item[CBC] COIN-OR Branch and Cut
+\item[OPL] Optimization Programming Language
+\item[QP] Quadratic Programming
+\item[QCP] Quadratically Constrained Programming
+\item[MILP] Mixed Integer Linear Programming
+\item[MIQP] Mixed-Integer Quadratic Programming
+\item[MIQCP] Mixed-Integer Quadratically Constrained Programming
+\item[AIMMS] Advanced Interactive Multidimensional Modeling System
+\item[AMPL] A Mathematical Programming Language
+\item[GAMS] General Algebraic Modeling System
+\item[MPL] Mathematical Programming Language
+\item[UAV] Unmanned Aerial Vehicle
+\item[WSNL] Wireless Sensor Node Leader
+\item[MCU] Microcontroller Unit
+\item[CR] Coverage Ratio
+\item[EC] Energy Consumption
+\item[ASR] Active Sensors Ratio
+
\end{abbreviations}
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