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Home ยป SoftMoW: A Dynamic and Scalable Software Defined Architecture for Cellular WANs
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SoftMoW: A Dynamic and Scalable Software Defined Architecture for Cellular WANs

Authors: 

Mehrdad Moradi, University of Michigan; Li Erran Li, Bell Labs, Alcatel-Lucent; Z. Morley Mao, University of Michigan

Abstract: 

Rather than organizing mobile wide area networks as rigid regions with no direct traffic transit, we argue that the cellular networks should have a fully connected core topology, small logical regions, and more egress points. In addition, operators should leverage software de ned networking to manage the entire network with a logically-centralized controller. The controller directs traffic through efficient network paths that might cross region boundaries, supports and optimizes inter-region handoff s, and dynamically adapts to traffic patterns with efficient inter-region traffic engineering.

Such an architecture raises unique scalability challenges in comparison with data-center and enterprise networks due to the geographically distributed nature of mobile WANs. Indeed, a logically-centralized controller in one point-of-presence with a at architecture quickly becomes infeasible, if the mobile WAN spans a large region. This is due to the high latency between the controller and the data plane switches, the amount of signaling load from mobile users, and the very high number cellular handoffs.

Mehrdad Moradi, University of Michigan

Li Erran Li, Bell Labs and Alcatel-Lucent

Z. Morley Mao, University of Michigan

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BibTeX
@inproceedings {182335,
author = {Mehrdad Moradi and Li Erran Li and Z. Morley Mao},
title = {{SoftMoW}: A Dynamic and Scalable Software Defined Architecture for Cellular {WANs}},
booktitle = {Open Networking Summit 2014 (ONS 2014)},
year = {2014},
address = {Santa Clara, CA},
url = {https://www.usenix.org/conference/ons2014/technical-sessions/presentation/moradi},
publisher = {USENIX Association},
month = mar,
}
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