The MSSN Lab (Mobile System, Security and Networking) is led by Professor Chunyi Peng. We are devoted to mobile-relevant research, spanning the topics in mobile networks (cellular networks, WiFi, HetNets, next-generation wireless access), mobile systems (sensing, wearable computing, physical cyber interaction) and security (malware, networking attacks and defense).
Instability in Distributed Mobility Management: Revisiting Configuration Management in 3G/4G Mobile Networks, SIGMETRICS'16.
Understanding and Diagnosing Real-World Femtocell Performance Problems, INFOCOM'16.
iCellular: Define Your Own Cellular Network Access on Commodity Smartphones, NSDI'16.
A First Look at Unstable Mobility Management in Cellular Networks, HotMobile'16.
VoLTE*: A Lightweight Voice Solution to 4G LTE Networks, HotMobile'16.
Insecurity of Voice Solution VoLTE in LTE Mobile Networks, CCS'15
How Voice Call Technology Poses Security Threats in 4G LTE Networks, CNS'15
- Detecting Problematic Control-Plane Protocol Interactions in Mobile Networks, TON'15.
- InFrame++: Achieve Simultaneous Screen-Human Viewing and Hidden Screen-Camera Communication, MobiSys'15
- Latency-Aware Rate Adaptation in 802.11n Home Networks, INFOCOM'15
- A Measurement Study on TCP Behaviors in HSPA+ Networks on High-speed Rails, INFOCOM'15
- Real Threats to Your Data Bills: Security Loopholes and Defense in Mobile Data Charging, CCS'14
- InFrame: Multiflexing Full-Frame Visible Communication Channel for Humans and Devices, HotNets-XIII
- Enhancing Reliability to Boost the Throughput over Screen-Camera Links, MobiCom'14
- Control-Plane Protocol Interactions in Cellular Networks, SIGCOMM'14
- Ubiquitous Keyboard for Small Mobile Devices: Harnessing Multipath Fading for Fine-Grained Keystroke Localization, MobiSys'14.
- Hidden Costs of Mobile Data Access in Cellular Networks, LANMAN'14 (Invited paper)
- Epsilon: A Visible Light Based Positioning System, NSDI'14
Configuration Management for Mobility Support in Cellular Networks [Expand]This project investigate security implications of mobile data charging, one essential operation to mobile network carriers and users. We aim to expose vulnerability and loopholes, deduce root causes and propose remedies. Full project page: Click here
iCellular: Device-Customized Cellular Network Access on Commodity Smartphones [Expand]Exploiting multi-carrier access offers a promising direction to boost access quality in mobile networks. This project aims to achieve the full potential of this approach through leveraging fine-grained, cellular-specific domain knowledge on commodity phones. Full project page: Click here
SecMDC: Secure Mobile Data Charging in 3G/4G Cellular Networks [Expand]This project investigate security implications of mobile data charging, one essential operation to mobile network carriers and users. We aim to expose vulnerability and loopholes, deduce root causes and propose remedies. Full project page: Click here
LTE Voice in Peril: A Security Perspective on VoLTE and CSFB [Expand]This project investigate security implications of 4G LTE voice solutions: VoLTE (voice-over-LTE) and CSFB (circuit-switched Fallback). In this project, we seek to disclose whether both schemes might be harmful to mobile users and/or operators from a security perspective. If so, we aim to pinpoint their root causes, uncover the insights of insecurity and devise defenses that protect from such attacks.. Full project page: Click here
CNetVerifer: Control-plane Protocol Verification in 4G/3G Cellular Networks [Expand]This project conducts a rigorous study on verifying the correctness of control-plane protocols in 3G/4G networks. We aim to verify the control-plane protocol interactions in multi-dimensions in operational cellular networks: cross-layer (eg, RRC and MM, AS and NAS), cross-domain (CS and PS) and cross-system (4G and 3G). We identify design and operational defects and propose solutions. Full project page: Click here
InFrame: Hide Data Bits Within Video Frames [Expand]This project aims to explore a novel screen-camera communication, along with screen-to-eye video viewing, both over visible light channels. This seeks to empower concurrent delivery of primary video content to users and additional information to devices over screen-to-camera visual links without impairing user-viewing experience. Full project page: Click here
I gratefully acknowledge ongoing and past research support from NSF (CNS-1421440, CNS-1421933,CNS-1527613,CNS-1526456), and Gifts from Adobe.