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21st MobiSys 2023: Helsinki, Finland
- Petteri Nurmi, Pan Hui, Ardalan Amiri Sani, Yunxin Liu:

Proceedings of the 21st Annual International Conference on Mobile Systems, Applications and Services, MobiSys 2023, Helsinki, Finland, June 18-22, 2023. ACM 2023
Sound
- Lei Wang

, Tao Gu
, Wei Li
, Haipeng Dai
, Yong Zhang
, Dongxiao Yu
, Chenren Xu
, Daqing Zhang
:
DF-Sense: Multi-user Acoustic Sensing for Heartbeat Monitoring with Dualforming. 1-13 - Lixing He

, Haozheng Hou
, Shuyao Shi
, Xian Shuai
, Zhenyu Yan
:
Towards Bone-Conducted Vibration Speech Enhancement on Head-Mounted Wearables. 14-27 - Mahathir Monjur

, Yubo Luo
, Zhenyu Wang
, Shahriar Nirjon
:
SoundSieve: Seconds-Long Audio Event Recognition on Intermittently-Powered Systems. 28-41
Machine Learning and AI I
- Seunghyeok Jeon

, Yonghun Choi
, Yeonwoo Cho
, Hojung Cha
:
HarvNet: Resource-Optimized Operation of Multi-Exit Deep Neural Networks on Energy Harvesting Devices. 42-55 - Kai Huang

, Boyuan Yang
, Wei Gao
:
ElasticTrainer: Speeding Up On-Device Training with Runtime Elastic Tensor Selection. 56-69 - Jianyu Wei

, Ting Cao
, Shijie Cao
, Shiqi Jiang
, Shaowei Fu
, Mao Yang
, Yanyong Zhang
, Yunxin Liu
:
NN-Stretch: Automatic Neural Network Branching for Parallel Inference on Heterogeneous Multi-Processors. 70-83
Health Monitoring
- Justin Chan

, Antonio Glenn
, Malek Itani
, Lisa R. Mancl
, Emily Gallagher
, Randall A. Bly
, Shwetak N. Patel
, Shyamnath Gollakota
:
Wireless earbuds for low-cost hearing screening. 84-95 - Tianfang Zhang

, Cong Shi
, Payton Walker
, Zhengkun Ye
, Yan Wang
, Nitesh Saxena
, Yingying Chen
:
Passive Vital Sign Monitoring via Facial Vibrations Leveraging AR/VR Headsets. 96-109 - Xiangyu Yin

, Kai Huang
, Erick Forno
, Wei Chen
, Heng Huang
, Wei Gao
:
PTEase: Objective Airway Examination for Pulmonary Telemedicine using Commodity Smartphones. 110-123
Wireless
- Linling Zhong

, Mingwei Ouyang
, Fengyuan Zhu
, Meng Jin
, Xinbing Wang
, Xinping Guan
, Chenghu Zhou
, Xiaohua Tian
:
SmartShell: A Near-Field Reflective Surface Enhancing RSS. 124-136 - Lili Chen

, Bozhong Yu
, Ju Ren
, Jeremy Gummeson
, Yaoxue Zhang
:
Towards Seamless Wireless Link Connection. 137-149 - Nina Grosheva

, Sai Pavan Deram
, Jesus Omar Lacruz
, Joerg Widmer
:
SIGNiPHY: Reconciling random access with directional reception for efficient mmWave WLANs. 150-162
Sensing
- Zhiyuan Xie

, Xiaomin Ouyang
, Li Pan
, Wenrui Lu
, Guoliang Xing
, Xiaoming Liu
:
Mozart: A Mobile ToF System for Sensing in the Dark through Phase Manipulation. 163-176 - Binbin Xie

, Minhao Cui
, Deepak Ganesan
, Xiangru Chen
, Jie Xiong
:
Boosting the Long Range Sensing Potential of LoRa. 177-190 - Wenli Jiao

, Yanlin Li
, Xiangdong Xi
, Ju Wang
, Dingyi Fang
, Xiaojiang Chen
:
BioScatter: Low-Power Sweat Sensing with Backscatter. 191-204
Security and Privacy I
- Xiaoyue Ma

, Qiang Zeng
, Haotian Chi
, Lannan Luo
:
No More Companion Apps Hacking but One Dongle: Hub-Based Blackbox Fuzzing of IoT Firmware. 205-218 - Irtaza Shahid

, Nirupam Roy
:
"Is this my president speaking?" Tamper-proofing Speech in Live Recordings. 219-232 - Zhihao Yao

, Seyed Mohammadjavad Seyed Talebi
, Mingyi Chen
, Ardalan Amiri Sani
, Thomas E. Anderson
:
Minimizing a Smartphone's TCB for Security-Critical Programs with Exclusively-Used, Physically-Isolated, Statically-Partitioned Hardware. 233-246
Mobile Devices and Edge
- Jaeheon Kwak

, Sunjae Lee
, Dae R. Jeong
, Arjun Kumar
, Dongjae Shin
, Ilju Kim
, Donghwa Shin
, Kilho Lee
, Jinkyu Lee
, Insik Shin
:
MixMax: Leveraging Heterogeneous Batteries to Alleviate Low Battery Experience for Mobile Users. 247-260 - Seonghoon Park

, Yeonwoo Cho
, Hyungchol Jun
, Jeho Lee
, Hojung Cha
:
OmniLive: Super-Resolution Enhanced 360° Video Live Streaming for Mobile Devices. 261-274 - Liuyi Jin

, Tian Liu
, Amran Haroon
, Radu Stoleru
, Michael Middleton
, Ziwei Zhu
, Theodora Chaspari
:
EMSAssist: An End-to-End Mobile Voice Assistant at the Edge for Emergency Medical Services. 275-288
Localisation
- Nakul Garg

, Nirupam Roy
:
Sirius: A Self-Localization System for Resource-Constrained IoT Sensors. 289-302 - Kangmin Bae

, Hankyeol Moon
, Sung-Min Sohn
, Song Min Kim
:
Hawkeye: Hectometer-range Subcentimeter Localization for Large-scale mmWave Backscatter. 303-316 - Jinyan Jiang, Jiliang Wang, Yijie Chen

, Yihao Liu
, Yunhao Liu:
LocRa: Enable Practical Long-Range Backscatter Localization for Low-Cost Tags. 317-329
Camera, Switch
- Xiao Zhang

, Griffin Klevering
, Juexing Wang
, Li Xiao
, Tianxing Li
:
RoFin: 3D Hand Pose Reconstructing via 2D Rolling Fingertips. 330-342 - Hanting Ye

, Jie Xiong
, Qing Wang
:
When VLC Meets Under-Screen Camera. 343-355 - Zeyu Wang

, Jingao Xu
, Xu Wang
, Xiangwen Zhuge
, Xiaowu He
, Zheng Yang
:
Industrial Knee-jerk: In-Network Simultaneous Planning and Control on a TSN Switch. 356-369
Security and Privacy II
- Matthew Corbett

, Brendan David-John
, Jiacheng Shang
, Y. Charlie Hu
, Bo Ji
:
BystandAR: Protecting Bystander Visual Data in Augmented Reality Systems. 370-382 - Gen Li

, Zhichao Cao
, Tianxing Li
:
EchoAttack: Practical Inaudible Attacks To Smart Earbuds. 383-396 - Yilin Yang

, Xin Li
, Zhengkun Ye
, Yan Wang
, Yingying Chen
:
BioCase: Privacy Protection via Acoustic Sensing of Finger Touches on Smartphone Case Mini-Structures. 397-409 - Christian Peeters

, Tyler Tucker
, Anushri Jain
, Kevin R. B. Butler, Patrick Traynor
:
LeopardSeal: Detecting Call Interception via Audio Rogue Base Stations. 410-422
Backscatter
- Longzhi Yuan

, Wei Gong
:
Enabling Native WiFi Connectivity for Ambient Backscatter. 423-435 - Xin Na

, Xiuzhen Guo
, Zihao Yu
, Jia Zhang
, Yuan He
, Yunhao Liu
:
Leggiero: Analog WiFi Backscatter with Payload Transparency. 436-449 - Caihui Du

, Jiahao Liu
, Shuai Wang
, Rongrong Zhang
, Wei Gong
, Jihong Yu
:
Timespan-based Backscatter Using a Single COTS Receiver. 450-461
mmWave
- Jiahong Xie

, Hao Kong
, Jiadi Yu
, Yingying Chen
, Linghe Kong
, Yanmin Zhu
, Feilong Tang
:
mm3DFace: Nonintrusive 3D Facial Reconstruction Leveraging mmWave Signals. 462-474 - Hailan Shanbhag, Sohrab Madani, Akhil Isanaka, Deepak Nair, Saurabh Gupta, Haitham Hassanieh:

Contactless Material Identification with Millimeter Wave Vibrometry. 475-488 - Guorong He

, Shaojie Chen
, Dan Xu
, Xiaojiang Chen
, Yaxiong Xie
, Xinhuai Wang
, Dingyi Fang
:
Fusang: Graph-inspired Robust and Accurate Object Recognition on Commodity mmWave Devices. 489-502
Machine Learning and AI II
- Rui Kong

, Yuanchun Li
, Yizhen Yuan
, Linghe Kong
:
ConvReLU++: Reference-based Lossless Acceleration of Conv-ReLU Operations on Mobile CPU. 503-515 - Rongjie Yi

, Ting Cao
, Ao Zhou
, Xiao Ma
, Shangguang Wang
, Mengwei Xu
:
Boosting DNN Cold Inference on Edge Devices. 516-529 - Xiaomin Ouyang

, Zhiyuan Xie
, Heming Fu
, Sitong Cheng
, Li Pan
, Neiwen Ling
, Guoliang Xing
, Jiayu Zhou
, Jianwei Huang
:
Harmony: Heterogeneous Multi-Modal Federated Learning through Disentangled Model Training. 530-543 - Rui Chen

, Qiyu Wan
, Xinyue Zhang
, Xiaoqi Qin
, Yanzhao Hou
, Di Wang
, Xin Fu
, Miao Pan
:
EEFL: High-Speed Wireless Communications Inspired Energy Efficient Federated Learning over Mobile Devices. 544-556
POSTER SESSION: Poster Session
- Hui Ruan

, Qingyuan Gong
, Yang Chen
, Jiong Chen
, Ziyue Li
, Xiang Su
:
Poster: A Privacy-preserving Heart Rate Prediction System for Drivers in Connected Vehicles. 557-558 - Milla Lintunen

, Gopika Premsankar
, Henri Tenhunen
, Sasu Tarkoma
, Ashwin Rao
:
Poster: Automatic Mass Power Outage Detection in Radio Access Networks. 559-560 - Pramuka Medaranga Sooriya Patabandige

, Steven Antya Orvala Waskito
, Kunjun Li
, Kai Jie Leow
, Shantanu Chakrabarty
, Ambuj Varshney
:
Poster: Rethinking Embedded Sensor Data Processing and Analysis with Large Language Models. 561-562 - Maolin Gan

, Yimeng Liu
, Li Liu
, Chenshu Wu
, Younsuk Dong
, Huacheng Zeng
, Zhichao Cao
:
Poster: mmLeaf: Versatile Leaf Wetness Detection via mmWave Sensing. 563-564 - Shixin Wang

, Zhaoyuan Xu
, Wei Gong
:
Poster: Enhanced ZigBee Backscatter Communication using Fine-Grained Chip-Level Modulation. 565-566 - Irtaza Shahid

, Nirupam Roy
:
Poster: Preventing Fake News through Live Speech Signature. 567-568 - Nakul Garg

, Nirupam Roy
:
poster: Ultra-low-power Angle-of-Arrival Estimation Using a Single Antenna. 569-570 - Yushan Huang

, Hamed Haddadi
:
Poster: Towards Battery-Free Machine Learning Inference and Model Personalization on MCUs. 571-572 - Zhili Wang

, Longzhi Yuan
, Wei Gong
:
Poster: Image Acquisition and Storage System for Battery-Free WiFi Camera. 573-574 - Matan Broner

, Sangwoo Lee
, Liuyi Jin
, Radu Stoleru
:
Poster: Towards Multi-Radio Access in 5G Networks. 575-576 - Kangmin Bae

, Hankyeol Moon
, Song Min Kim
:
Poster: Submillimeter Localization for mmWave Backscatter Using Commodity 77 GHz Radar. 577-578 - Goh Sheen An

, Ambuj Varshney
:
Poster: VoCopilot: Enabling Voice-Activated Tracking for Everyday Interactions. 579-580 - Yanlong Qiu

, Jiaxi Zhang
, Kaiyi Huang
, Jin Zhang
, Bo Ji
:
Poster: Radar-CA: Radar-Sensing Multiple Access with Collision Avoidance. 581-582 - Matthew Corbett

, Brendan David-John
, Jiacheng Shang
, Y. Charlie Hu
, Bo Ji
:
Poster: BystandAR: Protecting Bystander Visual Data in Augmented Reality Systems. 583-584 - Hailan Shanbhag

, Sohrab Madani
, Akhil Isanaka
, Deepak Nair
, Saurabh Gupta
, Haitham Hassanieh
:
Poster: Contactless Material Identification with Millimeter Wave Vibrometry. 585
DEMONSTRATION SESSION: Demo Session
- Shalini Mukhopadhyay

, Swarnava Dey
, Avik Ghose
:
Demo: On-device Puff Detection System for Smoking Cessation. 586-587 - Jingyi Liao

, Kalle Ruttik
, Riku Jäntti
, Dinh-Thuy Phan-Huy
:
Demo: UE Assisted Ambient IoT in LTE Downlink, in real-time and open source. 588-589 - Jacky Cao

, Kit-Yung Lam
, Lik-Hang Lee
:
Demo: Real-Time WebXR Edge-based Object Detection for AR. 590-591 - Dong Li

, Kaiyan Zhang
, Dongping Cao
, Jing Shen
, Run Kang
, Qiankang Mao
, Jiawei Chen
:
Demo: Domino: A High-Precision Performance Monitoring and Analysis Platform for Client Applications. 592-593 - Haoran Li

, Qi Zhang
, Gajraj Kuldeep
:
Demo: 3TierView - A Three-tier Privacy-preserving Live Video Surveillance IoT System. 594-595 - Liuyi Jin

, Tian Liu
, Amran Haroon
, Radu Stoleru
, Michael Middleton
, Ziwei Zhu
, Theodora Chaspari
:
Demo: EMSAssist - An End-to-End Mobile Voice Assistant at the Edge for Emergency Medical Services. 596-597 - Kichang Lee

, Jonghyuk Yun
, Jun Han
, JeongGil Ko
:
Demo: Exploiting Indices for Man-in-the-Middle Attacks on Collaborative Unpooling Autoencoders. 598-599 - Tobias Mages

, Wenqing Yan
, Ambuj Varshney
, Christian Rohner
:
Demo: An Educational Platform to Learn Radio Frequency Wireless Communication. 600-601 - Tom Lauwaerts

, Carlos Rojas Castillo
, Elisa Gonzalez Boix
, Christophe Scholliers
:
Demo: Debugging Constraint Devices with EDWARD. 602-603 - Jie Li

, Zhixin Li
, Qiyue Li
, Wei Sun
, Weitao Li
, Huiyu Wang
, Zhi Liu
:
Demo: Landscape: Saliency and Trajectory based Viewport Prediction in Point Cloud Video Streaming. 604-605 - Jie Li

, Huiyu Wang
, Qiyue Li
, Xin Liu
, Zhixin Li
, Zhi Liu
:
Demo: Horizon: a Real-time Point Cloud Video Streaming System over Wireless Networks. 606-607 - Yuchen Ding

, Pengyuan Zhou
:
Demo: Near Real-time ChatGPT-AR. 608-609 - Jiahui Gong, Qiaohong Yu, Tong Li, Haoqiang Liu

, Jun Zhang
, Hangyu Fan, Depeng Jin, Yong Li:
Demo: Scalable Digital Twin System for Mobile Networks with Generative AI. 610-611
Rising Stars Session
- Xiaomin Ouyang

:
Design and Deployment of Multi-Modal Federated Learning Systems for Alzheimer's Disease Monitoring. 612-614 - Alejandro Blanco

:
Towards Precise, Ubiquitous and Real-Time Positioning. 615-617 - Jonathan Oostvogels

:
Towards Latency-First Wireless Embedded Networks. 618-620 - Zhiyuan Xie

:
Enhancing Time-of-Flight Sensing in Mobile Systems. 621-623 - Tianyue Zheng

:
Algorithmic Sensing: A Joint Sensing and Learning Perspective. 624-626 - Mikhail Fomichev

:
A Path to Holistic Privacy in Stream Processing Systems. 627-628 - Hong Jia

:
Ubiquitous, Secure, and Efficient Mobile Sensing Systems. 629-630

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