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Network virtualization and SDN-based routing allow carriers to flexiblyconfigure their networks in response to demand and unexpected networkdisruptions. However, cellular networks, by nature, pose some unique challengesbecause of user mobility and control/data plane partitioning, which calls fornew architectures and provisioning paradigms. In this paper, we address thelatter part by devising algorithms that can provision the data plane to createa distributed Mobile Edge Cloud (MEC), which provides opportunities for lowerlatencies and increased resilience (through placement of network functions atmore distributed datacenter locations) and accounts for service disruption thatcould be incurred because of user mobility between the service areas ofdifferent datacenters. Through evaluations with topology and traffic data froma major carriers's network, we show that, compared to static, centralizednetworks, careful virtualized provisioning can yield significant savings innetwork costs while still minimizing service disruption due to mobility. Wedemonstrate that up to a 75% reduction in redundant datacenter capacity overthe operator's current topology (while achieving the same level of resilience)is possible by distributing load over many mobile cloud datacenters.

Provisioning Low Latency, Resilient Mobile Edge Clouds for 5G