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Polytechnic University
(90 results)-
White Papers
Detecting Pulsing Denial-of-Service Attacks With Nondeterministic Attack Intervals
January 21, 2009, 12:00am PST
This paper addresses the important problem of detecting Pulsing Denial of Service (PDoS) attacks which send a sequence of attack pulses to reduce TCP throughput. Unlike previous works which...
Provided by Hong Kong Polytechnic University
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White Papers
The Early Detection of DDoS Based on the Persistent Increment Feature of the Traffic Volume
December 3, 2007, 12:00am PST
One of the major threats to cyber security is Distributed Denial of Service (DDoS) attacks. This paper proposes a new algorithm based on the persistent increment tendency of DDoS traffic. The...
Provided by Polytechnic University
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White Papers
Hierarchical Mobile IPv6 Based Fast Vertical Handover Using IEEE 802.21 Media Independent Handover Function
January 14, 2008, 12:00am PST
In this paper, the new fast vertical handover scheme is proposed for the hierarchical Mobile IPv6 (HMIPv6) to optimize and enhance the existing fast vertical handover HMIPv6 (FVH-HMIPv6) in...
Provided by Korea Polytechnic University
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White Papers
A Cooperative MAC for Distributed Space-Time Coding in an IEEE 802.16 Network
October 7, 2009, 12:00am PDT
In the next-generation WiMAX system, cooperative communication is being considered as an advanced technique to increase the throughput and improve the signal quality. In a cooperative scenario,...
Provided by Polytechnic University
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White Papers
An Energy-Aware Routing Protocol in Wireless Sensor Networks
January 13, 2009, 12:00am PST
The most important issue that must be solved in designing a data gathering algorithm for Wireless Sensor Networks (WSNS) is how to save sensor node energy while meeting the needs of...
Provided by Hong Kong Polytechnic University
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White Papers
Proactive Correspondent Registration for Proxy Mobile IPv6 Route Optimization
December 3, 2007, 12:00am PST
This paper shows a proactive correspondent registration mechanism is proposed for the Proxy Mobile IPv6 (PMIPv6) route optimization between the Correspondent Node (CN) and the Mobile Access...
Provided by Korea Polytechnic University
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White Papers
The Research of Algorithm of QoS Routing Based on TCP/IP
November 22, 2009, 12:00am PST
With the development of the international network, there is an increasing number of network services and real-time communication which have strict requirements on bandwidth, delay, delay jitter,...
Provided by Hebei Polytechnic University
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White Papers
Highly Efficient Techniques for Network Forensics
November 1, 2007, 12:00am PDT
A Payload Attribution System (PAS) performs two separate tasks - payload processing and other query processing. With the first, the payload of all traffic that passed through the network and query...
Provided by Polytechnic University
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White Papers
Cooperative Recovery in Heterogeneous Mobile Networks
June 27, 2008, 12:00am PDT
In multicast/broadcast services over infrastructure-based/ cellular wireless networks (e.g. 3G cellular networks, WiMax, DVB), data is transmitted to multiple recipients from an access point/base...
Provided by Polytechnic University
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White Papers
New Prioritization Schemes for QoS Provisioning in 802.11 Wireless Networks
July 16, 2008, 12:00am PDT
Due to the unreliable nature of the wireless medium, provisioning of Quality of Service (QoS) in wireless LANs is far more complicated than in wired networks. In order to address this challenge,...
Provided by Polytechnic University
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White Papers
Cooperative Communication in Wireless Systems
January 1, 2010, 12:00am PST
The broadcast nature of wireless communications suggests that a source signal transmitted towards the destination can be "Overheard" at neighboring nodes. Cooperative communication refers to...
Provided by Polytechnic University
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White Papers
Cloud-Based Service for Big Spatial Data Technology in Emergence Management
January 14, 2010, 12:00am PST
Following the development of spatial information acquisition technology, more and more spatial data have been collected through various approaches. There has been a full utilization of geospatial...
Provided by Henan Polytechnic University
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White Papers
An Active Approach to Measuring Routing Dynamics Induced by Autonomous Systems
June 14, 2007, 12:00am PDT
The authors present an active measurement study of the routing dynamics induced by AS-path prepending, a common method for controlling the inbound traffic of a multi-homed ISP. Un-like other...
Provided by Hong Kong Polytechnic University
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White Papers
Factors Affecting The Operating Performance Of Alternative Markets For SMEs
June 18, 2008, 12:00am PDT
This paper aims to study the operating performance of alternative markets from the perspective of the management of stock exchanges. The term "Operating performance" may refer to multi-dimensions:...
Provided by Hong Kong Polytechnic University
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White Papers
Successful Strategies for Yes.Com.Hk - A Case Study for Internet Advertising Business
August 2, 2006, 12:00am PDT
yes.com.hk, a spin-off company of the publisher of the teen magazine "YES!", started its operation in mid 1996 as a vertical portal for teenagers in Hong Kong. The company has gone through several...
Provided by Hong Kong Polytechnic University
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White Papers
An Artificial Immune Networking Using Intelligent Agents
July 4, 2008, 12:00am PDT
The objective of the proposed work is to formally verify and implement an Artificial Immune Networking model. The work focuses on the protection against computer viruses which disrupt the normal...
Provided by Polytechnic University
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White Papers
QoS Management for SOA by Synchronizing Quality Context in UDDI
June 1, 2009, 12:00am PDT
Web service is a core technology for sharing information resources and integrating processes in companies or organizations. Most applications depend on Web service as an interface for integrating...
Provided by Korea Polytechnic University
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White Papers
Optimal Peer-Assisted File Distribution: Single and Multi-Class Problems
August 15, 2006, 12:00am PDT
With the emergence of BitTorrent, Swarmcast, and CDNs, peer-assisted file distribution has become a prominent Internet application, both in terms of user popularity and traffic volumes. The...
Provided by Polytechnic University
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White Papers
A Measurement Study of a Large-Scale P2P IPTV System
April 20, 2007, 12:00am PDT
An emerging Internet application, IPTV, has the potential to flood Internet access and backbone ISPs with massive amounts of new traffic. Although many architectures are possible for IPTV video...
Provided by Polytechnic University
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White Papers
Efficient Substream Encoding for P2P Video on Demand
August 2, 2006, 12:00am PDT
In a P2P VoD system, the rate at which peers receive video fluctuates due to peer churn. Although scalable video coding has the potential to cope with rate fluctuation, existing scalable video...
Provided by Polytechnic University
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White Papers
Optimizing File Availability in Peer-to-Peer Content Distribution
January 9, 2007, 12:00am PST
A fundamental paradigm in Peer-To-Peer (P2P) content distribution is that of a large community of intermittently connected nodes that cooperate to share files. Because nodes are intermittently...
Provided by Polytechnic University
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White Papers
Inferring Network-Wide Quality in P2P Live Streaming Systems
April 17, 2007, 12:00am PDT
This paper explores how to remotely monitor network-wide quality in mesh-pull P2P live streaming systems. Peers in such systems advertise to each other buffer maps which summarize the chunks of...
Provided by Polytechnic University
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White Papers
Substream Trading: Towards an Open P2P Live Streaming System
February 3, 2008, 12:00am PST
The authors consider the design of an open P2P live-video streaming system. When designing a live video system that is both open and P2P, the system must include mechanisms that incentivize peers...
Provided by Polytechnic University
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White Papers
DATALITE: A Distributed Architecture for Traffic Analysis Via Light-Weight Traffic Digest
October 10, 2008, 12:00am PDT
In this paper, the authors propose DATALITE, a Distributed Architecture for Traffic Analysis via Light-weight Traffic digEst, which introduces a set of new distributed algorithms and protocols to...
Provided by Polytechnic University
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White Papers
Multi-Packet Signature Detection Using Prefix Bloom Filters
January 1, 2011, 12:00am PST
It is now a fact that manual defenses against worm epidemics are not practical. Recently, various automatic worm identification methods are proposed to be deployed at high-speed network nodes to...
Provided by Polytechnic University
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White Papers
A High-Speed PacketScore DDoS Defense System
June 1, 2006, 12:00am PDT
Distributed Denial of Service (DDoS) attacks pose a significant threat to the Internet while no effective defense schemes have been proposed or deployed. PacketScore has been proposed as a...
Provided by Polytechnic University
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White Papers
Multi-Antenna Cooperative Wireless Systems: A Diversity-Multiplexing Tradeoff Perspective
December 1, 2007, 12:00am PST
The authors consider a general multiple antenna network with multiple sources, multiple destinations and multiple relays in terms of the Diversity-Multiplexing Tradeoff (DMT). They examine several...
Provided by Polytechnic University
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White Papers
Offline Algorithms for Several Network Design, Clustering and QoS Optimization Problems
May 10, 2009, 12:00am PDT
In this paper the authors address several network design, clustering and Quality of Service (QoS) optimization problems and present novel, efficient, offline algorithms which compute optimal or...
Provided by Polytechnic University of Bucharest
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White Papers
Breaking a New Substitution-Diffusion Based Image Cipher Using Chaotic Standard and Logistic Maps
July 5, 2009, 12:00am PDT
With the rapid development of information technology, multimedia data are transmitted over all kinds of wired/wireless networks more and more frequently. Consequently, the security of multimedia...
Provided by Hong Kong Polytechnic University
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White Papers
Breaking a Chaotic Cryptographic Scheme Based on Composition Maps
July 18, 2009, 12:00am PDT
The development of information technology makes the transmission of digital data is carried out more and more frequently over all kinds of channels. Meanwhile, the security of digital data become...
Provided by Hong Kong Polytechnic University
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White Papers
A Measurement Study of Attacks on BitTorrent Leechers
February 7, 2008, 12:00am PST
Anti-P2P companies have begun to launch Internet attacks against BitTorrent swarms. In this paper, the authors analyze how successful these attacks are at impeding the distribution of targeted...
Provided by Polytechnic University
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White Papers
Streaming Layered Encoded Video Using Peers
January 5, 2007, 12:00am PST
Peer-to-peer video streaming has emerged as an important means to transport stored video. The peers are less costly and more scalable than an infrastructure-based video streaming network which...
Provided by Polytechnic University
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White Papers
Is BitTorrent Unstoppable?
February 3, 2008, 12:00am PST
Anti-P2P companies have begun to launch Internet attacks against BitTorrent swarms. The authors use passive and active Internet measurements to study how successful these attacks are at curtailing...
Provided by Polytechnic University
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White Papers
A Differential Cryptanalysis of Yen-Chen-Wu Multimedia Cryptography System (MCS)
August 18, 2009, 12:00am PDT
The prevalence of multimedia data makes its security become more and more important. However, traditional cryptosystems can not protect multimedia data efficiently due to the big differences...
Provided by Hong Kong Polytechnic University
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White Papers
Using Multi-Thread Technology Realize Most Short-Path Parallel Algorithm
June 9, 2009, 12:00am PDT
With the development of computer, the graph theory research obtains widely takes, and the most short-path question as a model question of graph theory is already applied in many fields. Because...
Provided by Tianjin Polytechnic University
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White Papers
A Method to Solve the Probe Load Effection in the High Speed Digital Circuit
June 9, 2009, 12:00am PDT
The measuring result has much business with the performance of the oscilloscope probe. First the authors analyze the probe load effection, and then present a method to solve the problem by using...
Provided by Tianjin Polytechnic University
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White Papers
A Chaotic Real-Time Cryptosystem Using a Switching Algorithmic-Based Linear Congruential Generator (SLCG)
August 1, 2006, 12:00am PDT
In order to increase the security level of the existing secure communication techniques used on top of a non-guarantee protocol like RTP, a chaotic real-time cryptosystem using Linear Congruential...
Provided by Hong Kong Polytechnic University
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White Papers
Leadership Styles And Ethical Decision-Making In Hospitality Management
July 30, 2008, 12:00am PDT
This paper examined the ways in which hospitality leaders in Australia seek to influence others in the workplace. One hundred and thirty three managers of hotels rated as three, four or five stars...
Provided by Hong Kong Polytechnic University
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White Papers
An Efficient Correspondent Registration to Reduce Signaling Overheads for Proxy Mobile IPv6
September 1, 2007, 12:00am PDT
This paper proposes an efficient correspondent registration mechanism to reduce the signaling overhead for the Proxy Mobile IPv6 (PMIPv6). In the proposed mechanism, the signaling overhead for the...
Provided by Korea Polytechnic University
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White Papers
A Geometric Transformation to Protect Minutiae-Based Fingerprint Templates
March 25, 2007, 12:00am PDT
The increasing use of biometrics in different environments presents new challenges. Most importantly, biometric data are irreplaceable. Therefore, storing biometric templates, which is unique to...
Provided by Polytechnic University
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White Papers
Joint Traffic Blocking and Routing Under Network Failures and Maintenances
August 1, 2006, 12:00am PDT
Under device failures and maintenance activities, network resources reduce and congestion may arise inside networks. As a result, users experience degraded performance on packet delays and losses....
Provided by Polytechnic University
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White Papers
A Survey on Peer-to-Peer Video Streaming Systems
December 5, 2007, 12:00am PST
Video-over-IP applications have recently attracted a large number of users on the Internet. Traditional client-server based video streaming solutions incur expensive bandwidth provision cost on...
Provided by Polytechnic University
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White Papers
Adaptive Queue-Based Chunk Scheduling for P2P Live Streaming
July 9, 2007, 12:00am PDT
P2P streaming has been popular and is expected to attract even more users. The challenges for P2P streaming have been on its scalability and video viewing quality. Both require efficient...
Provided by Polytechnic University
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White Papers
Is Random Scheduling Sufficient in P2P Video Streaming?
March 19, 2011, 12:00am PDT
Peer-To-Peer (P2P) technology has recently been employed to deliver large scale video multicast services on the Internet. Considerable efforts have been made by both academia and industry on P2P...
Provided by Polytechnic University
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White Papers
Deterministic Data Reduction in Sensor Networks
August 10, 2006, 12:00am PDT
The processing capabilities of wireless sensor nodes enable to aggregate redundant data to limit total data flow over the network. The main property of a good aggregation algorithm is to extract...
Provided by Polytechnic University
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White Papers
A New Deterministic Data Aggregation Method for Wireless Sensor Networks
May 15, 2007, 12:00am PDT
In this paper, the authors focus on sampling data from a set of sensor nodes linked by a network and consider the problem of extracting the sample from the network to a central DBMS and later...
Provided by Polytechnic University
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White Papers
Deterministic Algorithms for Sampling Count Data
May 12, 2007, 12:00am PDT
Processing and extracting meaningful knowledge from count data is an important problem in data mining. The volume of data is increasing dramatically as the data is generated by day-to-day...
Provided by Polytechnic University
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White Papers
A Novel Satellite Data 3-Dimensional Visualization Method
November 25, 2011, 12:00am PST
In the solution to the problem of 3 d visualization of satellite data, such as accurate cloud, ignorance of visual impact mask gray, transparency and positioning, the author puts forward a series...
Provided by Tianjin Polytechnic University
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White Papers
On the MGIS-Oriented Design Web Service
June 1, 2011, 12:00am PDT
In this time, for used as a data query the mine measurements are made for the GIS (Geographic Information System), however, there are some disadvantages in use such data, such as, measurement data...
Provided by Henan Polytechnic University
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White Papers
How to Protect Biometric Templates
January 20, 2007, 12:00am PST
In addition to the inherent qualities that biometrics posses, powerful signal processing tools enabled widespread deployment of the biometric-based identification/verification systems. However,...
Provided by Polytechnic University
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White Papers
Secure Biometric Templates From Fingerprint-Face Features
April 26, 2007, 12:00am PDT
Since biometric data cannot be easily replaced or revoked, it is important that biometric templates used in biometric applications should be constructed and stored in a secure way, such that...
Provided by Polytechnic University
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White Papers
Practical Security of Non-Invertiblewatermarking Schemes
April 29, 2007, 12:00am PDT
Designing secure digital watermarking schemes resistant to invertibility attacks (or more generally, ambiguity attacks) has been challenging. In a recent work, Li and Chang (IHW'04) give the first...
Provided by Polytechnic University
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White Papers
It Is Better to Give Than to Receive - Implications of Cooperation in a Real Environment
February 27, 2007, 12:00am PST
Thanks to the immense potential cooperative communications display, extensive investigations have been directed to examine its performance by means of both analysis and simulation. In this paper,...
Provided by Polytechnic University
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White Papers
Modeling User Choice in the Pass Points Graphical Password Scheme
July 20, 2007, 12:00am PDT
The authors develop a model to identify the most likely regions for users to click in order to create graphical passwords in the PassPoints system. A PassPoints password is a sequence of points,...
Provided by Polytechnic University
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White Papers
Network Processors: A Practical Approach for Achieving Wirespeed Packet Processing in the Emerging Optical Backbone Networks
April 27, 2007, 12:00am PDT
In this paper, the wire-speed packet processing issue is studied for Optical Packet/Burst Switching (OPS/OBS) switching nodes as well as for Wavelength-Routing (WR) switching nodes. Some...
Provided by Polytechnic University of Cartagena
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White Papers
MatPlanWDM: An Educational Tool for Network Planning in Wavelength-Routing Networks
March 22, 2007, 12:00am PDT
This paper presents the MatPlanWDM tool, an educational network planning tool for wavelength-routing WDM networks. It includes a set of heuristic algorithms for solving the virtual topology...
Provided by Polytechnic University of Cartagena
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White Papers
Round-Robin Wavelength Assignment: A New Packet Sequence Criterion in Optical Packet Switching SCWP Networks
November 29, 2009, 12:00am PST
The WASPNET project proposed a packet sequence criterion to preserve end-to-end packet order in Optical Packet Switching (OPS) networks controlled by the SCattered Wavelength Path (SCWP)...
Provided by Polytechnic University
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White Papers
Parallel Desynchronized Block Matching: A Feasible Scheduling Algorithm for the Input-Buffered Wavelength-Routed Switch
November 29, 2009, 12:00am PST
The Input-Buffered Wavelength-Routed (IBWR) switch is a promising switching architecture for slotted Optical Packet Switching (OPS) networks. The benefits of the IBWR fabric are a better...
Provided by Polytechnic University of Cartagena
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White Papers
When Role Models Have Flaws: Static Validation of Enterprise Security Policies
February 6, 2007, 12:00am PST
Modern multi-user software systems have adopted Role-Based Access Control (RBAC) for authorization management. This paper presents a formal model for RBAC policy validation and a static-analysis...
Provided by Polytechnic University
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White Papers
Efficient Event Delivery in Publish/Subscribe Systems for Wireless Mesh Networks
March 5, 2009, 12:00am PST
Publish/Subscribe (Pub/Sub) systems have been widely used in distributed computing systems for event notification and delivery. However, there is no existing work on Pub/Sub systems for Wireless...
Provided by Hong Kong Polytechnic University
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White Papers
When Transportation Meets Communication: V2P Over VANETs
March 28, 2010, 12:00am PDT
Information interaction is a crucial part of modern transportation activities. In this paper, the authors propose the idea of Vehicle-To-Passenger communication (V2P), which allows direct,...
Provided by Hong Kong Polytechnic University
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White Papers
A Novel Secure Localization Approach in Wireless Sensor Networks
November 3, 2010, 12:00am PDT
Recent advances in wireless networking technologies, along with ubiquitous sensing and computing, have brought significant convenience for location-based services. The localization issue in...
Provided by Hong Kong Polytechnic University
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White Papers
Data Aggregation Scheduling in Uncoordinated Duty-Cycled Wireless Sensor Networks Under Protocol Interference Model
November 23, 2010, 12:00am PST
Data aggregation is a critical and widely-used operation in Wireless Sensor Networks (WSNs). Data Aggregation Scheduling (DAS) aims to find an interference-free scheduling for data aggregation...
Provided by Hong Kong Polytechnic University
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White Papers
Efficient Device Pairing Using "Human-Comparable" Synchronized Audiovisual Patterns
April 6, 2008, 12:00am PDT
Pairing is referred to as the operation of achieving authenticated key agreement between two human-operated devices over a short- or medium-range wireless communication channel (such as Bluetooth,...
Provided by Polytechnic University
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White Papers
Stability Study of the TCP-RED System Using Detrended Fluctuation Analysis
March 12, 2008, 12:00am PDT
It has been observed that the TCP-RED system may exhibit instability and oscillatory behavior. Control methods proposed in the past have been based on the analytical models that rely on...
Provided by Hong Kong Polytechnic University
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Software
iPolyU 1.1.1 (Mobile)
June 13, 2011, 12:00am PDT
iPolyU is developed to keep you connected with PolyU anytime, anywhere.Features:Calendar event and academic calendarsPhotos stock of campus and PolyU imagesContacts contact details of servicing...
Provided by The Hong Kong Polytechnic University
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White Papers
Evaluation of the Trade-Off Between Power Consumption and Performance in Bluetooth Based Systems
June 26, 2007, 12:00am PDT
To further increase the applicability of Bluetooth in real applications, reducing the energy consumption and hardware cost are important research topics. In this paper, the authors examine the...
Provided by Polytechnic University
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White Papers
Evaluation of the Impact of Multipath Data Dispersion for Anonymous TCP Connections
June 22, 2007, 12:00am PDT
Despite recent research efforts, wireless ad hoc networking technology remains especially prone to security attacks. In this paper, the authors' contribution focuses on determining the optimal...
Provided by Polytechnic University
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White Papers
A Low-Cost Embedded IDS to Monitor and Prevent Man-in-the-Middle Attacks on Wired LAN Environments
June 20, 2007, 12:00am PDT
A Man-in-the-Middle (MitM) attack is, in the scope of a LAN, a technique where an attacker is able to redirect all traffic between two hosts of that same LAN for packet sniffing or data...
Provided by Polytechnic University
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White Papers
Behavior of Quality Assessment Metrics Under Packet Losses on Wireless Networks
June 5, 2008, 12:00am PDT
PSNR does not always rank quality of an image or video sequence in the same way that a human being. When evaluating coding proposals under specific distortion like compression or packet losses,...
Provided by Polytechnic University
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Software
PCDS 1.13 (iOS)
August 10, 2011, 12:00am PDT
PCDS is an initiative of The Hong Kong Polytechnic University Council towards paperless meetings in support of environmental conservation. It enables eligible users to download, read and store...
Provided by The Hong Kong Polytechnic University
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White Papers
Is There Convergence In Financial Development And Economic Growth?
November 5, 2007, 12:00am PST
This paper tests for convergence in financial development and economic growth by incorporating the interaction between the real and financial sectors into an otherwise traditional test for...
Provided by Hong Kong Polytechnic University
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Software
READ@PolyU 1.4 (Mobile)
August 5, 2011, 12:00am PDT
READ@PolyU iPhone App provides reading guides and event updates of The Hong Kong Polytechnic Universitys campus-wide common reading programme.What is READ@PolyU? READ@PolyU is a new campus-wide...
Provided by The Hong Kong Polytechnic University
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White Papers
Mobile Filtering for Error-Bounded Data Collection in Sensor Networks
March 21, 2008, 12:00am PDT
In wireless sensor networks, filters, which suppress data update reports within predefined error bounds, effectively reduce the traffic volume for continuous data collection. All prior filter...
Provided by Hong Kong Polytechnic University
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White Papers
Robust Sparse Coding for Face Recognition
April 5, 2011, 12:00am PDT
As a powerful tool for statistical signal modeling, sparse representation (or sparse coding) has been successfully used in image processing applications, and recently has led to promising results...
Provided by Hong Kong Polytechnic University
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White Papers
A Fast Handover Scheme for Proxy Mobile IPv6 Using IEEE 802.21 Media Independent Handover
February 10, 2011, 12:00am PST
In this paper, to resolve the problem of existing schemes, an alternative fast handover Proxy Mobile IPv6 (PMIPv6) scheme using the IEEE 802.21 Media Independent Handover (MIH) function is...
Provided by Korea Polytechnic University
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White Papers
The Real Value of Software Engineering in a Computer Science Program (the Use of Case Studies and Projects)
May 2, 2008, 12:00am PDT
This paper addresses the important role that software engineering has in the Computer Science program for the graduate to be prepared for the work force or graduate school. The balance between...
Provided by Polytechnic University
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White Papers
A Cyber University Framework for Web-Based Teaching
May 10, 2008, 12:00am PDT
In this paper, the authors present a cyber university framework for Web-based teaching for the Hong Kong CyberU. Flexibility and mobility are the key features of the courses offered by the Hong...
Provided by Hong Kong Polytechnic University
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White Papers
Why Do Poorly Performing Firms Pay Cash Dividends? Evidence From Mainland China And Hong Kong
June 14, 2007, 12:00am PDT
The authors use financial data on two types of poorly performing firms in the Greater China region (Mainland Chinese firms and Hong Kong firms) from 1993 through 2003 to examine the motives behind...
Provided by Hong Kong Polytechnic University
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White Papers
Compressing File Collections With a TSP-Based Approach
January 1, 2011, 12:00am PST
Delta compression techniques solve the problem of encoding a given target file with respect to one or more reference files. Recent work has demonstrated the benefits of using such techniques in...
Provided by Polytechnic University
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