Search results for: Hongzi Zhu

Items from 1 to 20 out of 61 results

article

Edge-empowered accurate urban vehicle localization with cellular-aware trajectories

Hongzi Zhu, Fan Wu, Siyuan Cao, Shan Chang, more

CCF Transactions on Networking > 2019 > 2 > 1 > 12-27

Acquiring accurate vehicle location information in urban settings is very challenging due to the complexity of urban environments. In this paper, we propose a novel scheme, called UPS, to tackle urban vehicle localization problem. After extensive empirical study, we find that GSM power spectrogram collected over a distance has ideal temporal–spatial characteristics for fingerprinting. Encouraged by...

article

Guest editorial: fog computing on wheels

Hongzi Zhu, Tom H. Luan, Mianxiong Dong, Peng Cheng

Peer-to-Peer Networking and Applications > 2018 > 11 > 4 > 735-737

article

ShakeIn: Secure User Authentication of Smartphones with Single-Handed Shakes

Hongzi Zhu, Jingmei Hu, Shan Chang, Li Lu

IEEE Transactions on Mobile Computing > 2017 > 16 > 10 > 2901 - 2912

Smartphones have been widely used with a vast array of sensitive and private information stored on these devices. To secure such information from being leaked, user authentication schemes are necessary. Current password/pattern-based user authentication schemes are vulnerable to shoulder surfing attacks and smudge attacks. In contrast, stroke/gait-based schemes are secure but inconvenient for users...

article

A Budget Feasible Incentive Mechanism for Weighted Coverage Maximization in Mobile Crowdsensing

Zhenzhe Zheng, Fan Wu, Xiaofeng Gao, Hongzi Zhu, more

IEEE Transactions on Mobile Computing > 2017 > 16 > 9 > 2392 - 2407

Mobile crowdsensing is a novel paradigm to collect sensing data and extract useful information about regions of interest. It widely employs incentive mechanisms to recruit a number of mobile users to fulfill coverage requirement in the interested regions. In practice, sensing service providers face a pressing optimization problem: How to maximize the valuation of the covered interested regions under...

chapter

VOut: Mining Sampled GPS Trace for Taximeter Fraud

Ding Jing, Hongzi Zhu

2017 Fifth International Conference on Advanced Cloud and Big Data (CBD) > 261 - 266

2017 Fifth International Conference on Advanced Cloud and Big Data (CBD)

Nowadays Taxies play an important role in urban transportation. One practical issue in taxi operation is charging fraud, where the taximeter of a malicious taxi is altered to fake the real travel distance. One labor-intensive scheme to detect fraudulent taxies is to check the taximeters of a great number of randomly selected taxies or those taxies been accused of cheating. Alternatively, with GPS...

article

Pothole in the Dark: Perceiving Pothole Profiles with Participatory Urban Vehicles

Guangtao Xue, Hongzi Zhu, Zhenxian Hu, Jiadi Yu, more

IEEE Transactions on Mobile Computing > 2017 > 16 > 5 > 1408 - 1419

Accessing to timely and accurate road condition information, especially about dangerous potholes is of great importance to the public and the government. In this paper, we propose a novel scheme, called $P^3$<alternatives><inline-graphic xlink:href="xue-ieq1-2597839.gif"/> </alternatives>, which utilizes smartphones placed in normal vehicles to sense and estimate the profiles...

chapter

Perceiving accurate CSI phases with commodity WiFi devices

Yiwei Zhuo, Hongzi Zhu, Hua Xue, Shan Chang

IEEE INFOCOM 2017 - IEEE Conference on Computer Communications > 1 - 9

IEEE INFOCOM 2017 - IEEE Conference on Computer Communications

WiFi technology has gained a wide prevalence for not only wireless communication but also pervasive sensing. A wide variety of emerging applications leverage accurate measurements of the Channel State Information (CSI) information obtained from commodity WiFi devices. Due to hardware imperfection of commodity WiFi devices, the frequency response of internal signal processing circuit is mixed with...

chapter

Synthesizing Vehicle-to-Vehicle Communication Trace for VANET Research

Feng Lv, Hongzi Zhu, Shan Chang, Mianxiong Dong

2017 IEEE International Conference on Smart Computing (SMARTCOMP) > 1 - 3

2017 IEEE International Conference on Smart Computing (SMARTCOMP)

IEEE 802.11p based Dedicated Short Range Communication (DSRC) has been considered as a promising wireless technology for enhancing road safety and efficiency. However, there is lack of deep understanding about how IEEE 802.11p performs for vehicle-to- vehicle (V2V) communications in urban environments. In this demo paper, we first introduce the statistical analysis results on V2V communication performance,...

chapter

Where Were You Yesterday: Privacy Risk of Published Anonymous Trajectories

Shan Chang, Xiaoqiang Liu, Hongzi Zhu, Mianxiong Dong, more

2016 IEEE Global Communications Conference (GLOBECOM) > 1 - 6

GLOBECOM 2016 - 2016 IEEE Global Communications Conference

With more and more trajectory traces available, conducting analysis and mining on those trajectories can obtain valuable information. Although the published traces are often made anonymous by substituting the true identities of mobile nodes with random identifiers, the privacy concern remains. In this paper, we propose a new de-anonymization attack based on the movement pattern of moving objects....

chapter

On Unified Mobile Sensing Data Gathering with Urban Vehicular Networks

Jun Qin, Hongzi Zhu, Yanmin Zhu, Jiadi Yu, more

2016 IEEE Global Communications Conference (GLOBECOM) > 1 - 6

GLOBECOM 2016 - 2016 IEEE Global Communications Conference

To support mobile users in contributing sensing data for making urban management decisions, in ShanghaiGrid, unified data gathering operations are to be performed. For citywide coverage, public vehicles accept data from surrounding users and hand over to computing center through wireless base stations (BSs) deployed in the city. Meanwhile, several among the vehicles are hired as relays, which assist...

chapter

UPS: Combatting Urban Vehicle Localization with Cellular-Aware Trajectories

Hua Xue, Hongzi Zhu, Siyuan Cao, Shan Chang, more

2016 IEEE Global Communications Conference (GLOBECOM) > 1 - 7

GLOBECOM 2016 - 2016 IEEE Global Communications Conference

Acquiring accurate location information of vehicles is of great importance. Global Positioning System (GPS) has been widely deployed and used to be the most convenient solution to outdoor localization. As more and more infrastructure such as elevated roads, tunnels and tall buildings is built, however, the ever-increasing complexity of urban environments makes vehicle localization especially in those...

chapter

Identifying a New Non-Linear CSI Phase Measurement Error with Commodity WiFi Devices

Yiwei Zhuo, Hongzi Zhu, Hua Xue

2016 IEEE 22nd International Conference on Parallel and Distributed Systems (ICPADS) > 72 - 79

2016 IEEE 22nd International Conference on Parallel and Distributed Systems (ICPADS)

WiFi technology has gained a wide prevalence for not only wireless communication but also pervasive sensing. A wide variety of emerging applications leverage accurate measurements of the Channel State Information (CSI) information exposed by commodity WiFi devices. Due to hardware imperfection of commodity WiFi devices, the frequency response of internal signal processing circuit is mixed with the...

chapter

PLANT: A Distributed Architecture for Personalized E-Learning

Minglu Li, Hongzi Zhu, Yanmin Zhu

Lecture Notes in Computer Science > Advances in Web Based Learning – ICWL 2007 > Personalized E-Learning > 20-30

This paper presents PLANT, a distributed architecture for personalized E-Learning built upon the Edutella network which is a schema-based peer-to-peer system. The goal of PLANT is to facilitate individual learning on the Internet which abounds in a wide variety of educational resources and services. The distinctive features of PLANT are threefold. First, multifarious educational contents as well as...

chapter

Radio Frequency Identification (RFID) Based Reliable Applications for Enterprise Grid

Feilong Tang, Minglu Li, Xinhua Yang, Yi Wang, more

Lecture Notes in Computer Science > Advanced Web and Network Technologies, and Applications > International Workshop on Metropolis/Enterprise Grid and Applications (MEGA 2006) > 516-524

Radio frequency identification (RFID) provides a quick, flexible, and reliable electronic means to detect, identify, track, and manage a variety of items. It has the potential to significantly alter how processes occur and how companies operate. Currently, the development of RFID and Grid technologies has opened the door to many new RFID applications, many of which require transaction support. This...

chapter

Long-Term Renewable Energy Usage Maximization in a Microgrid

Tong Liu, Yanmin Zhu, Hongzi Zhu, Jiadi Yu, more

2016 25th International Conference on Computer Communication and Networks (ICCCN) > 1 - 8

2016 25th International Conference on Computer Communication and Networks (ICCCN)

With the development of renewable energy generators and electricity storages, microgrids become a promising technology of the smart grid. Maximizing the usage of renewable energy is vital to running a microgrid as it indicates reduction of the usage of thermal electricity purchased from the macrogrid. To this end, the excessive renewable energy of a user should be transferred to other users who need...

article

Private and Flexible Urban Message Delivery

Shan Chang, Hongzi Zhu, Mianxiong Dong, Kaoru Ota, more

IEEE Transactions on Vehicular Technology > 2016 > 65 > 7 > 4900 - 4910

With the popularity of intelligent mobile devices, enormous amounts of urban information has been generated and demanded by the public. In response, ShanghaiGrid (SG) aims to provide abundant information services to the public. With a fixed schedule and urbanwide coverage, an appealing service in SG is to provide free message delivery service to the public using buses, which allows mobile device users...

chapter

An Empirical Study on Urban IEEE 802.11p Vehicle-to-Vehicle Communication

Feng Lv, Hongzi Zhu, Hua Xue, Yanmin Zhu, more

2016 13th Annual IEEE International Conference on Sensing, Communication, and Networking (SECON) > 1 - 9

2016 13th Annual IEEE International Conference on Sensing, Communication, and Networking (SECON)

IEEE 802.11p based Dedicated Short Range Communication (DSRC) has been considered as a promising wireless technology for enhancing transportation safety and traffic efficiency. However, with limited literature available, there is lack of understanding about how IEEE 802.11p performs for vehicleto-vehicle (V2V) communications in urban environments. In this paper, we conduct intensive statistical analysis...

article

POST: Exploiting Dynamic Sociality for Mobile Advertising in Vehicular Networks

Jun Qin, Hongzi Zhu, Yanmin Zhu, Li Lu, more

IEEE Transactions on Parallel and Distributed Systems > 2016 > 27 > 6 > 1770 - 1782

Mobile advertising in vehicular networks is of great interest with which timely information can be fast spread into the network. Given a limited budget for hiring seed vehicles, how to achieve the maximum advertising coverage within a given period of time is NP-hard. In this paper, we propose an innovative scheme, POST, for mobile advertising in vehicular networks. The POST design is based on two...

chapter

RUPS: Fixing Relative Distances among Urban Vehicles with Context-Aware Trajectories

Hongzi Zhu, Shan Chang, Li Lu, Wei Zhang

2016 IEEE International Parallel and Distributed Processing Symposium (IPDPS) > 123 - 131

2016 IEEE International Parallel and Distributed Processing Symposium (IPDPS)

Access to accurate relative front-rear distance information between vehicles can be of great interest to drivers as such information can be utilised to improve driving safety. Acquiring such information in urban settings is very challenging due to the high complexity of urban environments. In this paper, we propose a novel scheme, called RUPS, to tackle the relative distance fixing problem. We first...

chapter

Maelstrom: Receiver-Location Preserving in Wireless Sensor Networks

Shan Chang, Yong Qi, Hongzi Zhu, Mianxiong Dong, more

Lecture Notes in Computer Science > Wireless Algorithms, Systems, and Applications > 190-201

In wireless sensor networks (WSNs), sinks or base stations are the key nodes of the networks which receive and process data from sensor nodes, hence their location should be protected well. However, they can easy fall prey to attacks launched by adversaries. In this paper, we propose a novel countermeasure Maelstrom to protect the location privacy of the key nodes in WSNs from both traffic analysis...

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VEHICLES (19)
ROADS (13)
GLOBAL POSITIONING SYSTEM (12)
DELAYS (9)
VEHICULAR NETWORKS (9)
CORRELATION (8)
SENSORS (8)
MOBILE COMPUTING (7)
ALGORITHM DESIGN AND ANALYSIS (6)
MOBILE COMMUNICATION (6)
SMART PHONES (6)
AD HOC NETWORKS (5)
DELAY (5)
ENTROPY (5)
VEHICULAR AD HOC NETWORKS (5)
WIRELESS COMMUNICATION (5)
ACCELERATION (4)
AUTOMATED HIGHWAYS (4)
ESTIMATION (4)
PROTOCOLS (4)
RADIOFREQUENCY IDENTIFICATION (4)
ROAD VEHICLES (4)
TELECOMMUNICATION TRAFFIC (4)
TRAJECTORY (4)
WIRELESS LAN (4)
ACCURACY (3)
CITIES AND TOWNS (3)
INTELLIGENT TRANSPORTATION SYSTEMS (3)
INTER-CONTACT TIME (3)
PEER TO PEER COMPUTING (3)
PRIVACY (3)
PUBLIC TRANSPORTATION (3)
REDUNDANCY (3)
RESOURCE MANAGEMENT (3)
ROAD NETWORK (3)
ROAD TRAFFIC (3)
SHANGHAIGRID PROJECT (3)
THROUGHPUT (3)
TRAFFIC ANALYSIS ATTACKS (3)
URBAN AREAS (3)
VEHICLE DYNAMICS (3)
WIRELESS SENSOR NETWORKS (3)
ACCELEROMETERS (2)
ADVERTISING (2)
ANALYTICAL MODELS (2)
ANONYMOUS COMMUNICATION (2)
APPROXIMATION ALGORITHMS (2)
BACKWARD UNLINKABILITY (2)
BANDWIDTH (2)
CHANNEL STATE INFORMATION (CSI) (2)
COMMUNITIES (2)
COMPRESSIVE SENSING (2)
COOPERATIVE DOWNLOADING (2)
DATA COMMUNICATION (2)
DATA DELIVERY (2)
DISTRIBUTED APPLICATIONS (2)
DRIVE-THRU INTERNET (2)
ELECTRONIC MAIL (2)
EMPIRICAL STUDY (2)
FINGERPRINTING (2)
GSM (2)
HIERARCHICAL EXPONENTIAL REGION ORGANIZATION (2)
HUMANS (2)
IEEE 802.11 (2)
IEEE 802.11 STANDARDS (2)
INTELLIGENT TRANSPORTATION SYSTEM (2)
INTERNET (2)
LOAD MANAGEMENT (2)
MARKOV PROCESSES (2)
MESSAGE DELIVERY (2)
MOBILE ADVERTISING (2)
MOBILE HANDSETS (2)
MOBILE RADIO (2)
NETWORK TRAFFIC (2)
NON-LINEAR PHASE ERRORS (2)
OPPORTUNISTIC FORWARDING (2)
OVERLAY NETWORK (2)
PROBE VEHICLES (2)
PROBES (2)
QUERY PROCESSING (2)
QUERYING USER (2)
RADIO FREQUENCY (2)
REAL TIME SYSTEMS (2)
REAL-TIME TRAFFIC INFORMATION (2)
RECEIVERS (2)
RELAYS (2)
ROUTING (2)
SCHEDULING (2)
SHANGHAIGRID (2)
SMARTPHONES (2)
SOCIAL NETWORK ANALYSIS (2)
SOCIAL NETWORK SERVICES (2)
SPATIAL CORRELATION (2)
SWITCHES (2)
TRAFFIC CONDITION (2)
TRAFFIC ESTIMATION (2)
URBAN VEHICULAR NETWORKS (2)
VANET (2)
VEHICULAR AD-HOC NETWORKS (2)
3D ACCELEROMETER (1)
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ieee (54)
Springer (6)
Elsevier (1)

INFONA - science communication portal

Search results for: Hongzi Zhu

Edge-empowered accurate urban vehicle localization with cellular-aware trajectories

Guest editorial: fog computing on wheels

ShakeIn: Secure User Authentication of Smartphones with Single-Handed Shakes

A Budget Feasible Incentive Mechanism for Weighted Coverage Maximization in Mobile Crowdsensing

VOut: Mining Sampled GPS Trace for Taximeter Fraud

Pothole in the Dark: Perceiving Pothole Profiles with Participatory Urban Vehicles

Perceiving accurate CSI phases with commodity WiFi devices

Synthesizing Vehicle-to-Vehicle Communication Trace for VANET Research

Where Were You Yesterday: Privacy Risk of Published Anonymous Trajectories

On Unified Mobile Sensing Data Gathering with Urban Vehicular Networks

UPS: Combatting Urban Vehicle Localization with Cellular-Aware Trajectories

Identifying a New Non-Linear CSI Phase Measurement Error with Commodity WiFi Devices

PLANT: A Distributed Architecture for Personalized E-Learning

Radio Frequency Identification (RFID) Based Reliable Applications for Enterprise Grid

Long-Term Renewable Energy Usage Maximization in a Microgrid

Private and Flexible Urban Message Delivery

An Empirical Study on Urban IEEE 802.11p Vehicle-to-Vehicle Communication

POST: Exploiting Dynamic Sociality for Mobile Advertising in Vehicular Networks

RUPS: Fixing Relative Distances among Urban Vehicles with Context-Aware Trajectories

Maelstrom: Receiver-Location Preserving in Wireless Sensor Networks

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