Universita' degli Studi di Napoli ''Federico II'' (Italy)
Dipartimento di Ingegneria Elettrica e delle Tecnologie dell'Informazione (DIETI)

Network Monitoring and Measurements  

Time and Path diversity in IP networks


The current Internet scenario poses several challenges to the infrastructure, and different approaches have been proposed in literature towards the Future Internet. Adopting an evolutionary approach, in this research activities we study how space and time diversity at IP layer can help to overcome limitations of current Internet infrastructure. We work on techniques implementing what we call informed diversity: space and time diversity using information about the status of the network to make informed decisions about the operating parameters. We adopt a methodology composed of theoretical, simulation, and experimental analysis, and we provide contributions in terms of methodologies and techniques for network monitoring, and in terms of innovative techniques and tools for space and time diversity at IP layer.




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Papers, TR, Documentation

Alessio Botta, Antonio Pescapè, "IP packet interleaving: bridging the gap between theory and practice", 16th IEEE Symposium on Computer and Communications (ISCC), Kerkyra (Corfu), Greece, June 2011.

Vinh Bui, Weiping Zhu, Alessio Botta, Antonio Pescapè, "A Markovian Approach to Multi-path Data Transfer in Overlay Networks", IEEE Transactions on Parallel and Distributed Systems, vol.21, no.10, pp.1398-1411, Oct. 2010.

Alessio Botta, "Towards informed diversity in IP networks: techniques, issues, and solutions", Ph.D. dissertation, University of Napoli Federico II, December 2009.

Alessio Botta, Antonio Pescapè, "Packet interleaving from theory to practice", Technical Report TR-DIS-INT-7-2009 Dipartimento di Informatica e Sistemistica, University of Napoli Federico II, Italy, July 2009.

Alessio Botta, Antonio Pescapè, Vinh Q Bui, Weiping Zhu, "An MDP-based Approach for Multipath Data Transmission over Wireless Networks", 2008 IEEE International Conference on Communications (ICC 2008), page(s): 268 - 274.

... more in publications

Source code*

TimeD is a prototype implementation of a packet interleaver for Linux based on libipq. It is a continuosly evolving project, aimed of deploying time diversity at IP layer, despite the application, transport protocol, and network technology in use. Alpha versions of TimeD are currently available under the terms of GNU GPL.

TimeD Simulator Based on Matlab, it allows to study time diversity at IP layer at a high level.
TimeD v0.1 First version. It requires the manual configuration of the operating parameters.
TimeD v0.2 Second version. A lot of improvements for stability and auto-configuration of the operating parameters.

*Software Disclaimer: we assume no responsibility whatsoever for using tools in the previous list.

Related resources

libipq subversion repository
libipq man page

Student contributors

- Alessandro Ferraiuolo
- Giansimone Perrino
- Carlo Ruggiero
- Rosario Mattera
- Rosa Guerra
- Antonino Esposito

If you are interested in collaborating with us or in opportunities in Traffic, please send an e-mail to Antonio Pescapè