
Wireless Algorithms, Systems, and Applications
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WASA is designed to be a forum for theoreticians, system and application designers, protocol developers and practitioners to discuss and express their views on the current trends, challenges, and state-of-the-art solutions related to various issues in wireless networks. Topics of interests include, but not limited to, effective and efficient state-of-the-art algorithm design and analysis, reliable and secure system development and implementations, experimental study and testbed validation, and new application exploration in wireless networks.
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Content
- Intro
- Preface
- Organization
- Contents
- Randomized Skip Graph-Based Authentication for Large-Scale RFID Systems
- 1 Introduction
- 2 Related Works and Preliminary
- 2.1 Related Works
- 2.2 Preliminary
- 3 RSGA
- 3.1 Motivations and Basic Idea
- 3.2 Definitions and Assumptions
- 3.3 The Proposed Authentication Protocol
- 4 Analyses
- 4.1 Anonymity Analysis
- 4.2 Cost Analysis
- 5 Simulation
- 5.1 Simulation Configuration
- 5.2 Simulation Results
- 6 Conclusion
- References
- Tefnut: An Accurate Smartphone Based Rain Detection System in Vehicles
- 1 Introduction
- 2 Related Work
- 3 System Design and Implementation
- 3.1 System Overview
- 3.2 Divide Audio Clips into Segments
- 3.3 Segment-Level Feature Extraction
- 3.4 Divide Segments into Frames
- 3.5 Frame-Level Feature Extraction
- 3.6 Multiple Frames Accumulation
- 3.7 Dimension Reduction
- 4 Evaluation
- 4.1 Recognition Performance of Different Recognizers
- 4.2 Experimental Results
- 4.3 Time Consumption of Every Computational Step
- 5 Conclusion
- References
- A New Paradigm for Shortest Link Scheduling in Wireless Networks: Theory and Applications
- 1 Introduction
- 2 Weak Duality
- 3 An Adaptive Zero-Sum Game with Retirement
- 4 Approximation Algorithm for SLS
- 5 Applications
- 5.1 Wireless SCSR Networks Under Physical Interference Model
- 5.2 Wireless MCMR Networks Under Protocol Interference Model
- 5.3 Wireless MIMO Networks Under Protocol Interference Model
- 6 Conclusion
- References
- CO2: Design Fault-Tolerant Relay Node Deployment Strategy for Throwbox-Based DTNs
- 1 Introduction
- 2 Problem Statement
- 3 CO2: Relay Node Placement Strategy
- 4 Performance Evaluation
- 4.1 Experimental Settings
- 4.2 Experimental Results
- 5 Conclusion
- References
- CNFD: A Novel Scheme to Detect Colluded Non-technical Loss Fraud in Smart Grid
- 1 Introduction
- 2 Colluded NTL Fraud
- 2.1 Problem Definition and Attack Model
- 3 CNTL Fraud Detection
- 3.1 Observer Meter
- 3.2 Tampered Meter Detection
- 3.3 Adversary Differentiation
- 4 Experiments
- 5 Related Work
- 6 Conclusion
- References
- SUO: Social Reciprocity Based Cooperative Mobile Data Traffic Communication
- 1 Introduction
- 2 Related Work
- 3 System Model
- 3.1 Social-Aware Utility
- 3.2 Consumptions in SUO Services
- 4 Optimal Solution
- 5 Performance Evaluation
- 5.1 Simulation Setup
- 5.2 Simulation Results
- 6 Conclusions
- References
- Piggybacking Lightweight Control Messages on Physical Layer for Multicarrier Wireless LANs
- 1 Introduction
- 2 Overview of PhyPig
- 3 Feasibility of PhyPig
- 3.1 Frequency Selective Fading
- 3.2 Symbol Error Pattern
- 3.3 Extra Coding Redundancy
- 4 PhyPig Design
- 4.1 Overall System Architecture
- 4.2 Modulation/Demodulation of Control Messages
- 4.3 Rate Selection of Control Messages
- 5 Evaluation
- 5.1 Accuracy of PhyPig Detection
- 5.2 Rate of Control Messages
- 5.3 Applications of PhyPig
- 6 Conclusion
- References
- Multi-focus Image Fusion via Region Mosaicing on Contrast Pyramids
- Abstract
- 1 Introduction
- 2 Focus Region Segmentation
- 2.1 Pixel Level Focus Measurement
- 2.2 Focus Region Segmentation
- 3 Region Mosaicing on Contrast Pyramids
- 3.1 Contrast Pyramid Fusion
- 3.2 Region Based Contrast Pyramid Fusion
- 4 Experiments
- 5 Conclusions
- Acknowledgement
- References
- Distributed Constrained Optimization Over Cloud-Based Multi-agent Networks
- 1 Introduction
- 2 Algorithm Development
- 2.1 Brief Review of ADMM
- 2.2 Distributed Constrained Optimization
- 3 Implementation Issues
- 3.1 Algorithm Outline
- 3.2 Early Termination of Inner Loops
- 3.3 Comparisons with Existing Works
- 4 Numerical Experiments
- 5 Conclusions
- References
- Tensor Filter: Collaborative Path Inference from GPS Snippets of Vehicles
- 1 Introduction
- 2 Related Work
- 3 Probabilistic Path Inference Model
- 3.1 Problem Definition
- 3.2 Unified Inference Model
- 4 Collaborative Tensor Filter
- 4.1 Tensor Construction
- 4.2 Tensor Decomposition with Regularization
- 4.3 Dynamic Feature Extraction
- 4.4 System Framework
- 5 Experiments
- 5.1 Settings
- 5.2 Evaluation Approach
- 5.3 Results
- 6 Conclusion
- References
- NFC Secure Payment and Verification Scheme for Mobile Payment
- Abstract
- 1 Introduction
- 2 NFC Mobile Electronic Ticket System
- 2.1 Scheme Structure
- 2.2 CS E-Ticket
- 2.3 CS E-Ticket NFC Payment Scheme
- 2.4 Offline CS E-Ticket Secure Verification
- 3 Security Analysis of NFC Mobile Electronic Ticket System
- 3.1 Security Analysis
- 3.2 Practicability Analysis
- 4 Conclusions
- Acknowledgment
- References
- Multi-path Reliable Routing with Pipeline Schedule in Wireless Sensor Networks
- 1 Introduction
- 2 Protocol Design
- 2.1 Establish Conversion Relationship Between Multi-paths
- 2.2 Conversion Between Multi-paths and Pipeline
- 3 The Selection of Scheduling Time in Assemble Line
- 3.1 Pipeline State's Classification
- 3.2 Prediction Algorithm Based on Markov Chain
- 4 Experiment and Analysis
- 4.1 The Impact of Sampling Period
- 4.2 The Impact of the Number of Pipeline Segment
- 4.3 The Impact of Predicting Time
- 5 Conclusion
- References
- A QoE-Aware Adaptive Spectrum Allocation Framework for Secondary Mobile Networks
- 1 Introduction
- 2 Adaptive Framework for Spectrum Allocation in Secondary Mobile Network
- 2.1 Service Model
- 2.2 Adaptive Spectrum Allocation Strategies
- 3 Determining System Performance
- 4 Numerical Results
- 5 Conclusion and Future Directions
- References
- Joint Optimization of Downlink and D2D Transmissions for SVC Streaming in Cooperative Cellular Networks
- 1 Introduction
- 2 Network Model and Problem Statement
- 2.1 Network Model
- 2.2 Block Error Rate
- 2.3 Decoding Requirement
- 2.4 Bound for Broadcast Traffic
- 2.5 Objective Function
- 2.6 Approximation of Primal Optimization Problem
- 3 Distributed Algorithm Design
- 4 Performance Evaluation
- 4.1 Influence of Different Link Conditions
- 4.2 Influence of Weight on Traffic Allocation
- 5 Conclusion
- References
- Identifying Discrepant Tags in RFID-enabled Supply Chains
- 1 Introduction
- 2 Problem Formulation
- 3 Deterministic Identification Protocol
- 4 Probabilistic Identification Protocol with Estimation
- 5 Evaluation
- 5.1 Experimental Comparison
- 6 Related Work
- 7 Concluding Remarks
- Appendix:
- References
- SHMDRS: A Smartphone-Based Human Motion Detection and Response System
- 1 Introduction
- 2 Overview of the System
- 3 The Human Motion Detection Module
- 3.1 Software Architecture
- 3.2 Data Acquisition and Collection
- 3.3 Data Processing and Machine Learning
- 3.4 Light-Kernel and Server-Free Design
- 4 The Response and Controller Module
- 5 The Location Retrieving Module
- 6 Experimental Results
- 7 Related Works
- 8 Conclusion
- References
- iRun: A Smartphone-Based System to Alert Runners to Warm Up Before Running
- 1 Introduction
- 2 Background
- 3 Data Collection
- 4 System Design
- 4.1 Preprocess
- 4.2 Segmentation
- 4.3 Feature Extraction
- 4.4 Detect Warm-Up Phase
- 5 Evaluation
- 5.1 Slide Window Size
- 5.2 Proper Multi-class Classifier
- 6 Related Work
- 7 Conclusion
- References
- iBeaconing: A Low-Cost, Wireless Student Protection System
- 1 Introduction
- 2 Related Work
- 3 Overall System Design
- 3.1 Beacon Scanning
- 3.2 Alert Data Transmission
- 4 System Components
- 4.1 The Bluetooth Scanners
- 4.2 The Central Webserver and Database
- 4.3 The Smartphone Application
- 5 Implementation
- 5.1 Installation
- 5.2 Cost
- 5.3 Evaluation
- 6 Conclusion
- References
- The Power Control Strategy for Mine Locomotive Wireless Network Based on Successive Interference Cancellation
- 1 Introduction
- 2 Mine Locomotive Wireless Networks
- 2.1 Network Model
- 2.2 Problem Formulation
- 2.3 Reformulation
- 3 Polynomial-Time Algorithm
- 4 Simulation Results
- 4.1 Results for a Wireless Network with 20 Locomotives
- 4.2 Results for All Network Instances
- 5 Conclusions
- References
- ESRS: An Efficient and Secure Relay Selection Algorithm for Mobile Social Networks
- 1 Introduction
- 2 Related Work
- 3 Problem Description
- 4 An Efficient and Secure Relay Selection Algorithm
- 4.1 Payoff Functions
- 4.2 Relay Selection Based on the Network Formation Game
- 4.3 Stability Analysis
- 5 Simulation
- 5.1 Simulation Study Using the Synthetic Trace
- 5.2 Simulation Study Using the Real-World Trace
- 6 Conclusion
- References
- Energy Detection of Gaussian Signals Subject to Impulsive Noise in Generalized Fading Channels
- 1 Introduction
- 2 The Energy Detector
- 2.1 Hypothesis H0
- 2.2 Hypothesis H1
- 3 Generalized Fading Channels
- 3.1 The - Distribution
- 3.2 The - Distribution
- 3.3 The - Distribution
- 4 Numerical Analysis
- 4.1 Cooperative Sensing
- 5 Conclusion
- Appendix A
- References
- Distance Bounding Protocol for RFID Systems
- 1 Introduction
- 2 The SMDB Protocol
- 2.1 Slow Exchange Phase
- 2.2 Rapid Bit Exchange Phase
- 2.3 Verification Phase
- 2.4 Identifier Update Phase
- 3 Security Analysis of the SMDB Protocol
- 3.1 Analysis on Impersonation Attacks
- 3.2 Analysis on Mafia Fraud Attacks
- 3.3 Analysis on Terrorist Fraud Attacks
- 3.4 Analysis on Distance Fraud Attacks
- 4 Noise Resilience
- 5 Conclusion
- References
- Private Weighted Histogram Aggregation in Crowdsourcing
- 1 Introduction
- 2 Preliminaries
- 2.1 Local Differential Privacy
- 2.2 Weighted Histogram Aggregation Model
- 3 Mechanism
- 3.1 Bi-parties Mechanism
- 3.2 Optimal Parameters Selection
- 4 Theoretical Analyses
- 4.1 Error Bounds
- 4.2 Computational Complexities
- 5 Experiments
- 6 Related Work
- 7 Conclusion
- References
- Minimum Cost Spatial-Temporal Task Allocation in Mobile Crowdsensing
- 1 Introduction
- 2 Model and Problem Formulation
- 2.1 Model
- 2.2 Problem Formulation
- 3 Algorithm Based on Duality Theory
- 3.1 NP-hardness of CTA
- 3.2 Design and Performance Analysis of Algorithm
- 4 Design Algorithm Based on Tabu Search
- 4.1 Design of Algorithm
- 4.2 Performance Analysis of Algorithm
- 5 Evaluation
- 5.1 Compared Algorithms
- 5.2 Simulation Settings and Metrics
- 5.3 Evaluation Results
- 6 Related Work
- 7 Conclusion
- References
- Mining Myself in the Community: Privacy Preserved Crowd Sensing and Computing
- 1 Introduction
- 2 Related Work
- 3 Preliminaries, Assumptions and Definitions
- 3.1 Models and Definitions
- 4 Privacy Preserved Community Modeling
- 4.1 Step 1: Function Modeling and Function Slicing at Each User
- 4.2 Step 2: Remodeling at Data Analyst
- 5 Mining Myself in My Community
- 6 Security Analysis
- 6.1 Security Analysis for the Stage of Function Modeling at Each User
- 6.2 Security Analysis for Stage of Function Slicing at Each User
- 6.3 Security Analysis for Mining Myself in My Community
- 7 Experiment Study
- 8 Conclusion
- References
- Exploiting Spectrum Availability and Quality in Routing for Multi-hop Cognitive Radio Networks
- 1 Introduction
- 2 System Model and Problem Definition
- 2.1 System Model and Assumptions
- 2.2 Routing Metrics
- 3 The Proposed Routing Algorithms
- 3.1 Maximum Success Probability (MaxSP) Algorithm
- 3.2 Minimum Expected Transmission Delay (MinETD) Algorithm
- 4 Simulations
- 4.1 Simulation Settings
- 4.2 Simulation Results
- 5 Conclusions
- References
- Performance Analysis for High Dimensional Non-parametric Estimation in Complicated Indoor Localization
- 1 Introduction
- 2 Fisher Information Matrix Formulation
- 3 Time-of-Arrival Localization System
- 3.1 Relative Height
- 3.2 NLOS
- 4 Simulation
- 4.1 Spatial Position Error Distribution
- 4.2 Bayesian-Based Target Tracking Estimation
- 5 Conclusion
- References
- Minimum-Delay Data Aggregation Schedule in Duty-Cycled Sensor Networks
- 1 Introduction
- 2 Related Work
- 3 Network Model
- 4 Problem Formulation
- 5 Data Aggregation Schedule Algorithm
- 5.1 Aggregation Tree Construction
- 5.2 Data Aggregation Schedule
- 6 Theoretical Analysis
- 7 Simulation Analysis
- 7.1 Simulation Setup
- 7.2 Analysis
- 8 Conclusion and Future Works
- References
- Optimal Jamming Attack Schedule Against Wireless State Estimation in Cyber-Physical Systems
- 1 Introduction
- 2 System Model and Problem Formulation
- 2.1 System Model
- 2.2 Attack Model
- 2.3 Problem Formulation
- 3 Optimal Jamming Attack Schedules
- 4 Illustrative Examples
- 5 Discussion on Scenarios with Multiple Sensors
- 6 Conclusion
- References
- An Enhanced Structure-Based De-anonymization of Online Social Networks
- 1 Introduction
- 2 Model and Definition
- 3 Background and Motivation
- 3.1 Structure-Based De-anonymization of Social Networks
- 3.2 Limitations of Existing Structure-Based Approaches
- 4 Basic Idea of Our Algorithm
- 5 The Design of Our Algorithm
- 5.1 Seed Identification
- 5.2 Mapping Propagation
- 5.3 Discussion
- 6 Evaluation
- 6.1 Dataset
- 6.2 Impact of the Number of Seeds
- 6.3 Impact of Noise
- 7 Conclusion
- References
- Self-learning Based Motion Recognition Using Sensors Embedded in a Smartphone for Mobile Healthcare
- Abstract
- 1 Introduction
- 2 Data Acquisition and Processing
- 2.1 Smartphone-Based Data Acquisition
- 2.2 Data Preprocessing
- 2.3 Feature Extraction
- 3 The Self-learning Scheme for Recognition of Both Seen and Unseen Motions
- 3.1 Framework of the Self-learning Scheme
- 3.2 The KNFST-Based Novelty Detection Algorithm
- 4 Experiments
- 4.1 Data Preparation
- 4.2 Evaluation Criteria
- 4.3 Experimental Results
- 5 Conclusions
- Acknowledgement
- References
- CrowdBlueNet: Maximizing Crowd Data Collection Using Bluetooth Ad Hoc Networks
- 1 Introduction
- 2 Background and Problem Definition
- 2.1 System Assumption and Problem Modelling
- 3 The Design of CrowdBlueNet
- 3.1 Design Overview
- 3.2 Routing Tree Establishment
- 4 Experiment
- 4.1 Network Initialization Time
- 4.2 Average Data Delivery Time
- 4.3 Network Throughput
- 5 Related Work
- 6 Conclusion
- References
- An Energy Efficient Multi-hop Routing Protocol for Terahertz Wireless Nanosensor Networks
- Abstract
- 1 Introduction
- 2 System Model
- 2.1 Network Model
- 2.2 Terahertz Channel Capacity
- 2.3 Energy Model
- 3 EEMR Protocol
- 3.1 Area of Candidate Nodes
- 3.2 Link Cost Function
- 4 Simulation and Performance Analysis
- 4.1 Statistics Definition
- 4.2 Parameter Settings
- 4.3 Results
- 5 Conclusion
- Acknowledgment
- References
- Stackelberg Game Based Incentive Mechanism for Data Transmission in Mobile Opportunistic Networks
- 1 Introduction
- 2 Related Work
- 3 Problem Statement and Utility Functions
- 4 Stackelberg Game Based Mechanism
- 4.1 Framework
- 4.2 Calculation of the Optimal Solution
- 5 Equilibrium Analysis
- 6 Simulations
- 7 Conclusion
- References
- Extensive Form Game Analysis Based on Context Privacy Preservation for Smart Phone Applications
- 1 Introduction
- 2 Related Work
- 3 Problem Statement and Game Formulations
- 3.1 Problem Statement
- 3.2 Extensive Form Game Formulation
- 4 Payoff Function
- 4.1 The User's Payoff Function
- 4.2 The Application's Payoff Function
- 4.3 The Adversary's Payoff Function
- 5 Solving and Analysing the Nash Equilibrium
- 5.1 The Solution of the Nash Equilibrium
- 6 Numerical Analysis
- 7 Conclusion
- References
- A Novel Delay Analysis for Polling Schemes with Power Management Under Heterogeneous Environments
- 1 Introduction
- 2 PCF with Power Management
- 3 Classic Pure Limited Service System with Multiple vacations
- 4 The Proposed Delay Model
- 4.1 The Equivalent Pure Limited Vacation System
- 4.2 Calculation of E{Yi}, E{Yi2} and E{Yi3}
- 4.3 Calculation of E{Zi}, E{Zi2} and E{Zi3}
- 5 Model Verification
- 6 Conclusion
- References
- Temporal-Spatial Aggregated Urban Air Quality Inference with Heterogeneous Big Data
- 1 Introduction
- 2 Related Work
- 3 Framework and Feature Extraction
- 3.1 Region Division
- 3.2 Temporal Feature Extraction
- 3.3 Spatial Feature Extraction
- 4 The Proposed Air Quality Inference Method
- 4.1 Inference Model Construction
- 4.2 Regression Parameters Estimation
- 4.3 Temporal and Spatial Parameters Estimation
- 4.4 Algorithm Flow
- 5 Experiments
- 5.1 Datasets
- 5.2 Baselines and Ground Truth
- 5.3 Results
- 6 Conclusion
- References
- Towards Scheduling to Minimize the Total Penalties of Tardiness of Delivered Data in Maritime CPSs (Invited Paper)
- 1 Introduction
- 2 System Model
- 3 Problem Formulation
- 3.1 Assumptions
- 3.2 Constrains
- 4 Solution
- 4.1 Representation
- 4.2 Fitness and Selection
- 4.3 Genetic Operators
- 4.4 Termination Criterion
- 5 Simulation Results
- 6 Conclusion
- References
- Spectrum-Aware Clustering with Proactive Handoff for Distributed Cognitive Radio Ad Hoc Networks
- 1 Introduction
- 2 Related Works
- 3 System Model
- 4 Spectrum-Aware Clustering
- 4.1 Definition of Channel Similarity
- 4.2 Graph Cut Based Clustering
- 4.3 Cluster Information Coordination
- 5 Channel Handoff
- 5.1 Cluster Based Transmission
- 5.2 Handoff Algorithm
- 6 Performance Evaluation
- 6.1 Clustering Performance
- 6.2 Channel Handoff Performance
- 7 Conclusion
- References
- A Social Relation Aware Hybrid Service Discovery Mechanism for Intermittently Connected Wireless Network
- 1 Introduction
- 2 Nodes Relationship Evaluation
- 3 Nodes Activity Evaluation
- 4 Service Discovery Mechanism
- 4.1 Service Registration and Cancelation
- 4.2 Service Selection
- 4.3 Service Activation
- 5 Numerical Results
- 5.1 Parameter Setting
- 5.2 Network Performance Under Different Node Density
- 6 Conclusion
- References
- The Improved Algorithm Based on DFS and BFS for Indoor Trajectory Reconstruction
- Abstract
- 1 Introduction
- 2 System Model
- 3 The Improved Algorithm Based on DFS and BFS
- 3.1 DFS and BFS
- 3.2 The Indoor Trajectory Reconstruction Algorithm Based on DFS and BFS
- 4 Experimental Result
- 5 Conclusion and Future Work
- Acknowledgement
- References
- Feedback Reduction for Multiuser MIMO Broadcast Channel with Zero-Forcing Beamforming
- 1 Introduction
- 2 System Model
- 2.1 Finite Rate Feedback for CDI Quantization
- 2.2 CQI Feedback Model
- 2.3 MIMO with ZFBF
- 3 Sum Rate with the SUS Algorithm
- 4 Feedback Reduction Strategy
- 4.1 Derivation of Multiple Thresholds
- 4.2 Feedback Load Analysis
- 5 Numerical Results
- 6 Conclusion
- References
- MPBSD: A Moving Target Defense Approach for Base Station Security in Wireless Sensor Networks
- 1 Introduction
- 2 Problem Statement
- 2.1 Background on Localization Challenges
- 2.2 Research Challenge and Motivation
- 3 Related Work
- 4 Design
- 4.1 System Architecture
- 4.2 Election Method: Decision Algorithm and Heartbeat
- 4.3 Inaccuracies of RSSI as an Enhancement Suite
- 5 Evaluation
- 5.1 Implementation and Preliminary Problems
- 5.2 Convergence Delay Problems: Overhead
- 5.3 Security Metric: Hunting the Base Station
- 6 Conclusion
- References
- Toward Exposing Timing-Based Probing Attacks in Web Applications
- 1 Introduction
- 2 Overview
- 2.1 Background
- 2.2 Approach
- 3 Evaluation
- 3.1 Timing-Based Probing Attack Detection
- 3.2 Performance
- 4 Related Work
- 5 Conclusion
- References
- Collaborative Outsourced Data Integrity Checking in Multi-Cloud Environment
- 1 Introduction
- 2 Approach Overview
- 2.1 System Framework
- 2.2 Challenges and Goals
- 2.3 Collaborative Data Integrity Audition Model
- 3 Collaborative Multi-cloud Data Integrity Audition Scheme
- 4 Evaluation
- 4.1 Security Analysis
- 4.2 Performance Analysis
- 5 Related Work
- 6 Conclusion
- References
- An Adaptive Beaconing Scheme Based on Traffic Environment Parameters Prediction in VANETs
- 1 Introduction
- 2 Related Works
- 3 System Description
- 4 The Online Part in the Adaptive Beaconing Scheme
- 4.1 The Detection Phase
- 4.2 The Adaption Phase
- 5 The Offline Part in the Adaptive Beaconing Scheme
- 6 Performance Evaluation
- 7 Conclusion
- References
- OSim: An OLAP-Based Similarity Search Service Solver for Dynamic Information Networks
- Abstract
- 1 Introduction
- 2 Problem Definition
- 2.1 Heterogeneous Information Network and Network Scheme
- 2.2 Attribute-Enriched Meta Path-Based Similarity Measure
- 2.3 User Query
- 3 OSim: OLAP-Based Similarity Service Search Solver
- 3.1 Baseline Method
- 3.2 Pruning Method
- 4 Experimental Performance Evaluation
- 5 Related Works
- 6 Conclusions
- Acknowledgments
- References
- Planning Roadside Units for Information Dissemination in Urban VANET
- 1 Introduction
- 2 Network Scenario and Covering Problem
- 3 Bounded Number of Street Intervals
- 3.1 Bounded Streets for Each RSU
- 3.2 NP-Hardness
- 4 A Polynomial Time Approximation Scheme
- 4.1 Shifting Strategy
- 5 Performance Evaluation
- 5.1 Simulation Environment
- 5.2 Compared Algorithms
- 5.3 Evaluation Results
- 6 Related Work
- 7 Conclusion
- References
- Channel Assignment with User Coverage Priority and Interference Optimization for Multicast Routing i ...
- Abstract
- 1 Introduction
- 2 Related Work
- 3 System Description
- 3.1 Network Model
- 3.2 Multicast Routing Tree
- 3.3 Channel Assignment
- 3.4 Problem Description
- 4 User Coverage and Interference Optimization for Multicast
- 4.1 Multicast Tree Construction
- 4.2 Channel Assignment with User Coverage Priority
- 5 Simulation
- 6 Conclusion
- Acknowledgement
- References
- Performance Evaluation of Vehicular Ad Hoc Networks for Rapid Response Traffic Information Delivery
- Abstract
- 1 Introduction
- 2 Proposed VANET System
- 2.1 Design Concept
- 2.2 Analysis and Performance Evaluation
- 2.3 VANET Communications
- 2.4 Probability of Over- and Under- Crowded for Connectivity
- 3 Conclusion
- References
- Author Index
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