EnCoR: An end-to-end architecture for simplifying cellular networks
Wesley Woo, Zhuowei Wen, Monniiesh Velmurugan, Richard Raad, Sylvia Ratnasamy, Scott Shenker, Shaddi Hasan

TL;DR
EnCoR introduces an end-to-end cellular network architecture that removes in-network mobility support, significantly reducing latency and operational costs while maintaining compatibility with existing devices and applications.
Contribution
The paper presents EnCoR, a novel deployable architecture that eliminates core network mobility, lowering latency and costs without requiring modifications to user devices.
Findings
EnCoR achieves LTE-level performance for video and voice applications.
Network costs can be reduced by over 90% with EnCoR compared to traditional 3GPP networks.
Handover latency is reduced by 2.6 times under load with EnCoR.
Abstract
Since their creation, cellular networks have made in-network mobility support a key feature of their service model. While this approach provides seamless connectivity for legacy traffic, it has the side effects of inflating end-user latency and increasing complexity and operational overhead for operators. Yet modern applications and transport protocols are increasingly mobility tolerant, prompting us to revisit the assumption that mobility must be provided as an in-network service. In this paper, we propose EnCoR (End-to-End Core and RAN), a deployable cellular network architecture that removes mobility from the core entirely. Leveraging end-to-end mobility, EnCoR eliminates tunnel-based IP anchoring while preserving compatibility with existing authentication, charging, and QoS techniques. We demonstrate that EnCoR works with unmodified phones while providing equivalent performance as…
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