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Yan Chen

Researcher at Northwestern University

Publications -  521
Citations -  24026

Yan Chen is an academic researcher from Northwestern University. The author has contributed to research in topics: Computer science & Medicine. The author has an hindex of 67, co-authored 415 publications receiving 21798 citations. Previous affiliations of Yan Chen include AT&T Labs & Huawei.

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Proceedings ArticleDOI

Spectrum efficiency and energy efficiency tradeoff for heterogeneous wireless networks

TL;DR: This paper characterize the spectrum efficiency (SE) and energy efficiency (EE) for heterogenous wireless networks, taking into account realistic network power consumption model and dynamic network configuration and shows that SE and EE may not be contradictory to each other as in the traditional networks.
Proceedings ArticleDOI

Reed-Muller Sequences for 5G Grant-Free Massive Access

Abstract: We propose to use second order Reed-Muller (RM) sequence for user identification in 5G grant-free access. The benefits of RM sequences mainly lie in two folds, (i) support of much larger user space, hence lower collision probability and (ii) lower detection complexity. These two features are essential to meet the massive connectivity ($10^7$ links/km$^2$), ultra- reliable and low-latency requirements in 5G, e.g., one- shot transmission ($\leq 1$ms) with $\leq 10^{-4}$ packet error rate. However, the non-orthogonality introduced during sequence space expansion leads to worse detection performance. In this paper, we propose a noise-resilient detection algorithm along with a layered sequence construction to meet the harsh requirements. Link-level simulations in both narrow- band and OFDM-based scenarios show that RM sequences are suitable for 5G.
Journal ArticleDOI

RuleScope: Inspecting Forwarding Faults for Software-Defined Networking

TL;DR: RuleScope is presented, a more comprehensive solution for inspecting SDN forwarding and incremental algorithms for rapidly evolving network policies to amortize detection and troubleshooting overhead without sacrificing accuracy are proposed.
Proceedings ArticleDOI

Redefining web browser principals with a Configurable Origin Policy

TL;DR: A new way to define a security principal and its labels in the browser is proposed, in which a browser's security principal is defined by a configurable ID rather than a fixed triple <;scheme, host, port>.
Proceedings ArticleDOI

HogMap: Using SDNs to Incentivize Collaborative Security Monitoring

TL;DR: HogMap proposes to transform the cyber-threat monitoring landscape by integrating several novel SDN-enabled capabilities: intelligent in-place filtering of malicious traffic, dynamic migration of interesting and extraordinary traffic and a software-defined marketplace where various parties can opportunistically subscribe to and publish cyber- threat intelligence services in a flexible manner.