 Project Background
WiFiUS: Heterogeneous Resource
Allocation for Hierarchical SoftwareDefined Radio Access Networks at
the Edge
 Two key challenges for future mobile data service:
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The explosive increase in mobile traffic; and
The “tidal phenomena” of temporal & spatial traffic fluctuations.
(Funding period: 01.01.2015 – 31.12.2016)
Xianfu Chen, Senior Scientist, Ph.D.
Email: [email protected]
 The software-defined networking (SDN) architecture simplifies network management, but falls short of handling
a large-scale radio access networks with extensive base station deployments.
 Project Goal
 A novel hierarchical SDN-at-the-Edge type
of architecture design for reducing control
overhead and system latency.
 Network-wide resource allocation strategy
developments for elastically matching with the traffic fluctuations.
 Preliminary Results
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X. Chen, et al., “Foresighted resource scheduling in software-defined radio access networks,” in Proc. IEEE GlobalSIP, Orlando, Florida, Dec. 2015.
L. Liu, et al., “A distributed ADMM approach for mobile data offloading in software defined network,” in Proc. IEEE WCNC, New Orleans, LA, USA, Mar. 2015.
X. Chen, et al., “Strategic Scheduling for Energy Optimization in Software-Defined Radio Access Networks,” IEEE Trans. Wireless Commun., under review, 2015.
R. Yu, et al., “Enhancing software-defined RAN with collaborative caching and scalable video coding,” submitted to IEEE ICC 2016.