Inhalt

•  
  1 Introduction
•  
  1.1 Current Trends and Issues in Mobile Access Networks
•  
   1.1.1 Increasing Data Rate Demands
•  
   1.1.2 Densification of Mobile Access Networks
•  
   1.2 Scope & Goals
•  
  1.3 Approaches
•  
   1.3.1 Anticipatory Download Scheduling
•  
   1.3.2 Backhaul Reconfiguration
•  
   1.4 Contributions
•  
   1.5 Structure of the Thesis
•  
  2 Technical Background
•  
   2.1 Backhaul Networks
•  
   2.1.1 WDM-PON
•  
   2.1.2 Power Consumption
•  
   2.1.3 Software Defined Networks
•  
   2.2 Wireless Access Networks
•  
   2.2.1 Simple 3GPP Radio Model
•  
   2.2.2 GreenTouch Radio Model
•  
   2.2.3 Power Consumption
•  
  2.3 Wireless Coordination
•  
   2.3.1 Coordinated Multipoint Transmission and Reception
•  
   2.3.2 Software Defined Base Station Coordination
•  
  2.4 Application Layer
•  
   2.4.1 HTTP Live Streaming
•  
   2.4.2 Data Rate Prediction
•  
  3 State of the Art & Related Work on Anticipatory Download Scheduling
•  
   3.1 Smarter Phones and Networks
•  
   3.2 Related Work
•  
   4 Anticipatory Download Scheduling with Perfect Prediction
•  
   4.1 Problem Description
•  
  4.2 Optimal Solution
•  
   4.2.1 Model Assumptions
•  
   4.2.2 Mixed Integer Quadratically Constrained Program
•  
   4.2.3 Objective
•  
   4.2.4 Complexity
•  
   4.3 Fill Algorithm
•  
  4.4 Greedy Algorithms
•  
   4.4.1 BufferFirst Algorithm
•  
   4.4.2 QualityFirst Algorithm
•  
  4.5 Evaluation
•  
   4.5.1 Scenario
•  
   4.5.2 Results
•  
   4.5.3 Algorithm Running Times
•  
   4.6 Summary
•  
   5 Anticipatory Download Scheduling with Uncertain Prediction
•  
   5.1 Problem Description
•  
   5.2 Generic Predictor
•  
   5.2.1 Stochastic Model of Prediction Errors
•  
   5.2.2 Implementation
•  
  5.3 Evaluation of Perfect Prediction Algorithms with Uncertain Predictions
•  
   5.3.1 Scenario
•  
   5.3.2 Results
•  
   5.4 Plan Algorithm
•  
  5.5 Evaluation
•  
   5.5.1 Comparison with Perfect Prediction Schedulers
•  
   5.5.2 Influence of the Prediction Horizon
•  
   5.6 Summary
•  
   6 Anticipatory Download Scheduling for Energy Efficiency
•  
   6.1 Problem Description
•  
   6.2 Optimal Solution
•  
   6.2.1 OptBasic
•  
   6.2.2 OptFlex
•  
  6.3 Two-Phase Algorithm
•  
   6.3.1 Quality selection phase
•  
   6.3.2 Base station disabling phase
•  
  6.4 Evaluation
•  
   6.4.1 Scenarios
•  
   6.4.2 Three BSs Scenario Results
•  
   6.4.3 Train Scenario Results
•  
   6.5 Summary
•  
  7 Anticipatory Download Scheduling Prototype
•  
   7.1 System Design
•  
   7.1.1 Design Decisions
•  
   7.1.2 Architecture and Implementation
•  
  7.2 Prototype Implementation
•  
   7.2.1 Protocol Extension
•  
   7.2.2 Testbed
•  
   7.3 Evaluation
•  
   7.4 Summary
•  
  8 State of the Art & Related Work on Backhaul Network Reconfiguration
•  
   8.1 Backhaul Network Reconfiguration for CoMP
•  
   8.2 CROWD Controller Architecture
•  
   8.3 Related Work
•  
   9 Backhaul Network Reconfiguration
•  
   9.1 Problem Description
•  
  9.2 Optimal Solution
•  
   9.2.1 Integer Linear Program
•  
   9.2.2 Complexity
•  
   9.3 BFS Algorithm
•  
   9.3.1 Inputs
•  
   9.3.2 Algorithm Implementation
•  
  9.4 Evaluation
•  
   9.4.1 Scenario
•  
   9.4.2 Comparison: Optimization vs. Heuristic Algorithm
•  
   9.4.3 Heuristic Algorithm in Large Scenarios
•  
   9.4.4 Energy Efficiency
•  
   9.5 Summary
•  
   10 Backhaul Network Reconfiguration Extension for DenseNets
•  
   10.1 Problem Description
•  
   10.2 Hotspot BFS Algorithm
•  
  10.3 Evaluation
•  
   10.3.1 Hotspot Scenario
•  
   10.3.2 Hotspot Scenario Results
•  
   10.3.3 Non-Hotspot Scenario Extended Results
•  
   10.4 Summary
•  
   11 Backhaul Network Reconfiguration Prototype
•  
   11.1 Architecture
•  
  11.2 Implementation
•  
   11.2.1 Controller and CLC Manager Plugin
•  
   11.2.2 Backhaul Network with Maxinet
•  
   11.2.3 Prototype Setup
•  
  11.3 Evaluation
•  
   11.3.1 Scenario
•  
   11.3.2 Results
•  
   11.4 Summary
•  
  12 Conclusion & Future Research Directions
•  
   12.1 Discussion
•  
   12.2 Conclusion
•  
   12.3 Future Research Directions
•  
   Acronyms
•  
   Bibliography