1. Dzmitry Kliazovich University of Luxembourg, Luxembourg
Barcelona, 11th May 2010
CogProt: A Framework for Cognitive Configuration and Optimization of Communication Protocols
Dzmitry Kliazovich University of Luxembourg, Luxembourg
Neumar Malheiros, University of Campinas, Brazil
Nelson L. S. da Fonseca,
Edmundo Madeira
Fabrizio Granelli University of Trento, Italy

2. Outline Introduction The Cognitive Framework Performance Evaluation
Conclusion

3. Motivation
Advancements in network technologies dramatically increased management complexity
Degradation of performance due to time-varying network conditions is a challenging issue.
It is not always possible to anticipate the best setup due to the unpredictable state of the network.

4. Goal A novel approach to dynamic reconfiguration of network protocols
Cognitive networking
Cross-layer design
Distributed decision-making

5. The Proposed Solution
CogProt: cognitive framework for dynamic adjustment of communication protocols
Support initial setup and runtime reconfiguration
Decentralized
Incremental deployment
Low processing requirements
TCP/IP compliant

6. CogProt Overview

7. The Cognitive Loop

8. Performance Evaluation
Ns-2 simulations
Parameter of interest: increase factor of the TCP congestion window

9. Average Throughput

10. Throughput over Time

11. Conclusion
We have proposed a distributed cognitive framework to deal with management complexity and avoid performance degradation
No changes on standard protocol messages or operation.
Incremental deployment
Wide range of tunable parameters

12. Future Work Evaluation of other probability distributions
Application to other TCP/IP protocols
Real implementation
Further development of CIS architecture and signaling

13. Thank you. Neumar Malheiros ncm@ic.unicamp.br