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Im Werk suchen
Biermann, Thorsten: Dealing with backhaul network limitations in coordinated multi-point deployments. 2012
Inhalt
Introduction
Current trends in mobile networks
Contribution
Structure of this thesis
CoMP background, its requirements, and related work
Overview of CoMP techniques
Joint transmission and its implementation issues
Implementation schemes
Base station clustering
In-band and out-of-band signaling
Backhaul requirements
Summary
Static clustering
Basic clustering and backhaul configuration
Problem description
Optimal solution
Heuristic approach
Evaluation
Clustering and backhaul configuration based on desired clusters
Problem description
Optimal solution
Heuristic approach
Evaluation
Summary
Dynamic clustering and its feasibility
Desired clusters from the wireless perspective
Wireless system model
Desired cluster size
Feasible clusters from the backhaul perspective
Backhaul system model
Topology influence
Influence of IP processing delay
Influence of single-copy multicast capability
Considerations for cooperation in the uplink
Handling mismatch between desired and feasible clusters
Wireless long-term pre-clustering
Backhaul network pre-clustering
System architecture
Advantages
Interaction with hand-over process
Cluster prioritization
Summary
Improving CoMP cluster feasibility
Technology-independent techniques
CoMP controller reassignment
Network reconfiguration
PON-specific techniques
Network coding
Inter-ONU data exchange
Summary
Deploying CoMP on metro scale
Modeling assumptions
Ring infrastructure
Ring architecture model
Results
Improvements
Star infrastructure
Star architecture model
Results
Improvements
Merging ring and star concept
Star-via-ring architecture model
Results
Improvements
Summary
Combining clustering and feasibility improvement techniques
Single CoMP cluster
Extending to multiple CoMP clusters
Summary
Conclusions and future research
Conclusions
Future research topics
Passive Optical Networks
TDM PONs
WDM PONs
Bibliography
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