Post date: Nov 12, 2018 7:51:38 PM
Handling mobility management in the Internet is not trivial, given the heterogeneity of devices involved; providers involved; service requirements. The Internet evolution requires re-thinking mobility management and to understand how to best distribute functionality across the network. The data transmission itself needs to take into consideration mobility, and to dynamically adjust to human movement, as next generation networks are information-centric, and user-centric.
During the last decades, several mobility management approaches have been design and validated, and are today operationally available. In the context of distributed mobile edge computing, mobility management architectures can be addressed in a novel way integrating functions such as mobility prediction and learning. For that purpose, there are a few topics that are relevant to be revisited, as explained next.
1. Mobility management functional splitting
The different approaches available today in multi-access heterogeneous networks, across different TCP/IP stack layers, which have been extensively worked upon in the context of the IETF are evolving towards decentralized mobility management. In this process, it is relevant to understand the limitations that current solutions face in next generation networks. It is also relevant to understand which functional blocks compose mobility management architectures, independently of the layer where such solutions reside.
2. From centralized to decentralized mobility management
Moving from centralized to distributed mobility management architectures can be designed in a way that is "closer" to the Internet end-user. Understanding how and where to position the different blocks that compose mobility management imply analyzing how to best decouple mobility management functionality.
3. Mobility modelling and anticipation
Moreover, in dynamic environments (which today are the basis of the Internet fringes), human interaction and computational models that can estimate aspects related with such interaction (e.g., frequency of visits to networks; roaming habits) can be provided via mobility estimation mechanisms. Mobility estimation is therefore a required mobility management function, still missing in today's architectures. Adding such mechanisms to mobility management architectures, centralized or decentralized, is beneficial.
4. Moving towards content-centric mobility management architectures
A more adequate distribution of mobility management requires a move towards a data-centric mobility management perspective. Today, mobility management solutions are focused on mobility management of devices, and this aspect is particularly challenging, due to the inherent addressing schemes, among other aspects. Simultaneous mobility of source and destination devices is an aspect that is not trivial to address. Still, analysing mobility management support from an information-centric perspective, instead of from a host reachability perspective, is relevant in the quest for mobility management that can support future Internet paradigms, where all devices are highly mobile.
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Projects and Code:
Mobility modelling:
Ribeiro, A., & Sofia, R. (2011). A survey on mobility models for wireless networks. Technical Report, COPELABS, University Lusofona.
Andréa Ribeiro, Rute C. Sofia and André Zúquete, Modeling Pause Time in Social Mobility Models. inProc. of the 2012 International Symposium on Wireless Communication Systems (ISWCS), pp 656-660, August 2012. DOI: 10.1109/ISWCS.2012.6328449.
Andréa Ribeiro, Rute C. Sofia and André Zúquete, Improving Mobile Networks based on Social Mobility Modeling, inProc. 19th IEEE International Conference on Network Protocols (ICNP), pp 289 - 291, October 2011. DOI: 10.1109/ICNP.2011.6089064.
Mobility Anticipation:
Xuejun Cai, Ling Chen, Rute Sofia. A Dynamic and User-Centric Network Selection in Heterogeneous Wireless Networks. inProc. IEEE International Performance, Computing, and Communications Conference, pp 538-544. IPCCC 2007. April 2007. DOI: 10.1109/PCCC.2007.358937.
Ling Chen, Xuejun Cai, Rute Sofia, Zhen Huang. A Cross-layer Fast Handover Scheme for Mobile WiMAX. inProc. 66th IEEE Vehicular Technology Conference (VTC-07), pp 1578 - 1582, September 2007. DOI: 10.1109/VETECF.2007.335.
R. C. Sofia, a Tool to Estimate Roaming Behavior in Wireless Architectures. inProc. WWIC2015, May 2015.
Michael Gorawski, Enrica Zola, Krzysztof Grochla, Francisco Barcelo-Arroyo, Israel Martin-Escalona, Andréa Ribeiro and Rute C. Sofia, New Trends in Mobility Modelling and Handover Prediction, Springer, LCNS Wireless Networking for Moving Objects, pp 88-114, volume 8611, Ed Ganchev, Curado & Kassler, 2014. ISBN 978-3-319-10834-6.DOI: 10.1007/978-3-319-10834-6_6.
Rute C. Sofia, Tiago Condeixa and Susana Sargento, Mobility Estimation in the Context of Distributed Mobility Management, Chapter IV, User-Centric Networking - Future Perspectives, Springer Lecture Notes in Social Networks, 2014, pp 289-310. Ed. Aldini & Bogliolo, ISBN 978-3-319-05217-5. DOI: 10.1007/978-3-319-05218-2_14.
Mobility de-centralization and distribution:
Andréa Nascimento, Rute C. Sofia, Tiago Condeixa and Susana Sargento, A Characterization of Mobile Management in User-centric Networks. InProc. 11th international conference on Next Generation Wired/Wireless Advanced Networking (New2AN 2011), Smart Spaces and Next Generation Wired/Wireless Networking Lecture Notes in Computer Science Volume 6869, 2011, pp 314-325. August 2011. DOI: 10.1007/978-3-642-22875-9_29
Andréa Nascimento, Rute C. Sofia, Tiago Condeixa and Susana Sargento, A Decoupling Approach for Distributed Mobility Management, inProc. 21st International Conference on Computer Communications and Networks (ICCCN), pp 1-6, July 2012. DOI: 10.1109/ICCCN.2012.6289280.
Tiago Condeixa, Lucas Gardalben, Tome Gomes, Susana Sargento and Rute C. Sofia, Make-Without-Break Horizontal IP Handovers for Distributed Mobility Management Schemes (2013), inProc. IEEE Globecom 2013 Workshop - Management of Emerging Networks and Services, pp 917-922, October 2013. DOI: 10.1109/GLOCOMW.2013.6825107.
Tiago Silvestre Condeixa, Susana Sargento, Andrea Giordanna Oliveira Nascimento, Rute C. Sofia. Decoupling and Distribution of Mobility Management, inProc. 4th International Workshop on Mobility Management in the Networks of the Future World (MobiWorld)/Globecom 2012, pp 1073-1078, December 2012. DOI: 10.1109/GLOCOMW.2012.6477727.
Tiago Condeixa, Ricardo Matos, Alfredo Matos, Susana Sargento and Rute C. Sofia, A New Perspective on Mobility Management Scenarios and Approaches. InProc. MONAMI 2010: 2nd International ICST Conference on Mobile Networks And Management. Mobile Networks and Management Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering Volume 68, 2011, pp 340-353. September 2010. DOI: 10.1007/978-3-642-21444-8_29.
Mobile Aware Routing Metrics
Namusale Chama, Rute C Sofia, Susana Sargento, Multihop Mobility Metrics based on Link Stability, Proceedings of the IEEE 27th International Conference on Advanced Information Networking and Applications Workshops, pp 809-816, 2013.DOI: 10.1109/WAINA.2013.57.
Namusale Chama, Rute C. Sofia and Susana Sargento, Impact of Mobility on User-centric Routing , inProc. 19th IEEE International Conference on Network Protocols (ICNP), pp 286 - 288, October 2011. DOI: 10.1109/ICNP.2011.6089063.
Namusale Chama and Rute Sofia. Redefining Link Duration:Making Routing Sensitive to Mobility, inProc. IEEE Globecom workshop SWM 2010, pp 32-37, December 2010. DOI: 10.1109/GLOCOMW.2010.5700336.
Namusale Chama, Rute Sofia, Susana Sargento. Node Spatial Correlation aware Routing Metrics for User-Centric Environments.inProc. 6th IFIP International Conference on New Technologies, Mobility and Security, pp 1-5, March 2014. DOI: 10.1109/NTMS.2014.6814037.
Namusale Chama and Rute C. Sofia, A Discussion on Developing Multihop Routing Metrics Sensitive to Node Mobility, in: Journal of Communications, Vol 6:1 pp 56-57, January 2011. DOI: 10.4304/jcm.6.1.56-67.