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Chinese University of Hong Kong
(127 results)-
White Papers
On 3-Receiver Broadcast Channels With 2-Degraded Message Sets
January 2, 2009, 12:00am PST
The broadcast channel with degraded message sets was initially studied by Korner and Marton for two receivers and more recently for three and more receivers. Korner and Marton established the...
Provided by Chinese University of Hong Kong
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White Papers
Exploring the Optimal Chunk Selection Policy for Data-Driven P2P Streaming Systems
June 24, 2009, 12:00am PDT
Data-driven P2P streaming systems can potentially provide good playback rate to a large number of viewers. One important design problem in such P2P systems is to determine the optimal chunk...
Provided by Chinese University of Hong Kong
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White Papers
A Simple Model for a Generic Class of P2P Streaming Algorithms
June 7, 2010, 12:00am PDT
P2P streaming tries to achieve scalability (like P2P file distribution) and at the same time meet real-time playback requirements. It is a challenging problem still not well understood. In this...
Provided by Chinese University of Hong Kong
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White Papers
Analysis of Load Balancing Algorithms in P2P Streaming
September 27, 2008, 12:00am PDT
In unstructured P2P content distribution systems, the most important algorithms to ensure optimal flow of content along multiple dynamically created distribution trees are piece selection...
Provided by Chinese University of Hong Kong
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White Papers
Designs and Evaluation of a Tracker in P2P Networks
November 26, 2008, 12:00am PST
The "Tracker" of a P2P system is used to lookup which peers hold (or partially hold) a given object. There are various designs for the tracker function, from a single-server tracker, to...
Provided by Chinese University of Hong Kong
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White Papers
The Delicate Tradeoffs in BitTorrent-Like File Sharing Protocol Design
January 1, 2012, 12:00am PST
The BitTorrent (BT) file sharing protocol is popular due to its scalability property and the incentive mechanism to reduce free-riding. However, in designing such P2P file sharing protocols, there...
Provided by Chinese University of Hong Kong
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White Papers
Decentralized Replication Algorithms for Improving File Availability in P2P Networks
July 14, 2007, 12:00am PDT
Being autonomous and scalable, Peer-to-Peer systems provide a paradigm for sharing files in the Internet. However, different from conventional structured replication systems like Content...
Provided by Chinese University of Hong Kong
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White Papers
On the Practical and Security Issues of Batch Content Distribution Via Network Coding
January 1, 2012, 12:00am PST
File distribution via network coding has received a lot of attention lately. However, direct application of network coding may have security problems. In particular, attackers can inject "Faked"...
Provided by Chinese University of Hong Kong
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White Papers
Application Identification Based on Network Behavioral Profiles
April 2, 2008, 12:00am PDT
Accurate identification of network applications is important to many network activities. Traditional port-based technique has become much less effective since many new applications no longer use...
Provided by Chinese University of Hong Kong
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White Papers
ISP Uplink Pricing in a Competitive Market
April 9, 2008, 12:00am PDT
In recent years, the upgrade of access networks to broadband networks together with the P2P technology has brought many new applications to the Internet. P2P applications have quickly become the...
Provided by Chinese University of Hong Kong
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White Papers
Peer-to-Peer Utility Maximization
February 25, 2008, 12:00am PST
In this paper, the authors study the problem of utility maximization in Peer-To-Peer (P2P) systems, in which aggregate utilities are maximized by running distributed algorithms on P2P nodes that...
Provided by Chinese University of Hong Kong
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White Papers
Optimal Resource Allocation for OFDM Uplink Communication: A Primal-Dual Approach
February 24, 2008, 12:00am PST
Orthogonal Frequency Division Multiplexing (OFDM) with dynamic resource allocation is widely considered to be a key component of most emerging broadband wireless access networks. However, resource...
Provided by Chinese University of Hong Kong
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White Papers
Incentive Mechanisms for Smartphone Collaboration in Data Acquisition and Distributed Computing
January 15, 2012, 12:00am PST
This paper analyzes and compares different incentive mechanisms for a client to motivate the collaboration of smartphone users on both data acquisition and distributed computing applications. Data...
Provided by Chinese University of Hong Kong
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White Papers
Spectrum Mobility Games
January 10, 2012, 12:00am PST
Cognitive radio gives users the ability to switch channels and make use of dynamic spectrum opportunities. However, switching channels takes time, and may affect the quality of a user's...
Provided by Chinese University of Hong Kong
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White Papers
P2P Streaming Capacity
February 1, 2011, 12:00am PST
Peer-To-Peer (P2P) systems provide a scalable way to stream content to multiple receivers over the Internet. The maximum rate achievable by all receivers is the capacity of a P2P streaming...
Provided by Chinese University of Hong Kong
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White Papers
Amplify-and-Forward in Wireless Relay Networks
August 18, 2011, 12:00am PDT
A general class of wireless relay networks with a single source-destination pair is considered. Intermediate nodes in the network employ an amplify-and-forward scheme to relay their input signals....
Provided by Chinese University of Hong Kong
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White Papers
Distributed Optimization for Combinatorial Coding Subgraph Selection Problems
May 20, 2011, 12:00am PDT
Many network design cases with network coding can be formulated as combinatorial optimization problems, which are NP-hard and hard to approximate even in a centralized manner. In this paper,...
Provided by Chinese University of Hong Kong
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White Papers
On the Role of Network Coding in Uncoordinated Multihop Content Distribution Over Ad Hoc Networks
July 30, 2011, 12:00am PDT
The authors consider the problem of multi-hop communication in ad hoc networks. This work was originally motivated by vehicular networks, and has application in numerous fields. The key constraint...
Provided by Chinese University of Hong Kong
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White Papers
Celerity: A Low-Delay Multi-Party Conferencing Solution
July 26, 2011, 12:00am PDT
In this paper, the authors attempt to revisit the problem of multi-party conferencing from a practical perspective, and to rethink the design space involved in this problem. They believe that an...
Provided by Chinese University of Hong Kong
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White Papers
Optimal Distributed P2P Streaming Under Node Degree Bounds
September 6, 2010, 12:00am PDT
The authors study the problem of maximizing the broadcast rate in Peer-To-Peer (P2P) systems under node degree bounds, i.e., the number of neighbors a node can simultaneously connect to is...
Provided by Chinese University of Hong Kong
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White Papers
Queuing Models for Peer-to-Peer Systems
April 27, 2009, 12:00am PDT
Recent development of Peer-To-Peer (P2P) services (e.g. streaming, file sharing, and storage) systems introduces a new type of queue systems not studied before. In these new systems, both job and...
Provided by Chinese University of Hong Kong
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White Papers
On Optimality of Routing for Multi-Source Multicast Communication Scenarios With Node Uplink Constraints
April 30, 2008, 12:00am PDT
The authors consider multi-source multicast communication scenarios in which each node has an aggregate outbound traffic capacity and can directly communicate with any other node. This is...
Provided by Chinese University of Hong Kong
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White Papers
On Resource Management for Cloud Users: A Generalized Kelly Mechanism Approach
July 30, 2010, 12:00am PDT
Cloud computing provides network software companies with a platform to develop Software as a Service (SaaS) applications. The pay-as-you-go pricing model unties these SaaS providers from large...
Provided by Chinese University of Hong Kong
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White Papers
Secure Compressed Reading in Smart Grids
August 7, 2011, 12:00am PDT
Smart Grids measure energy usage in real-time and tailor supply and delivery accordingly, in order to improve power transmission and distribution. For the grids to operate effectively, it is...
Provided by Chinese University of Hong Kong
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White Papers
Homomorphic Encryption From Codes
November 18, 2011, 12:00am PST
The authors propose a new homomorphic encryption scheme based on the hardness of decoding under independent random noise from certain affine families of codes. Unlike in previous lattice-based...
Provided by Chinese University of Hong Kong
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White Papers
NCCloud: Applying Network Coding for the Storage Repair in a Cloud-of-Clouds
January 22, 2012, 12:00am PST
To provide fault tolerance for cloud storage, recent studies propose to stripe data across multiple cloud vendors. However, if a cloud suffers from a permanent failure and loses all its data, then...
Provided by Chinese University of Hong Kong
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White Papers
Power Allocation for Multiuser Cooperative Communication Networks Under Relay Selection Degree Bounds
May 15, 2012, 12:00am PDT
This paper considers the joint power allocation and relay selection problem in multiuser cooperative communication networks, where one user can only seek a limited number of relays for...
Provided by The Chinese University of Hong Kong
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White Papers
Learning Equilibrium Play for Stochastic Parallel Gaussian Interference Channels
March 19, 2011, 12:00am PDT
Distributed power control for parallel Gaussian interference channels recently draws great interests. However, all existing works only studied this problem under deterministic communication...
Provided by The Chinese University of Hong Kong
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White Papers
Analog Network Coding in General SNR Regime: Performance of a Greedy Scheme
April 23, 2012, 12:00am PDT
The problem of maximum rate achievable with analog network coding for a unicast communication over a layered relay network with directed links is considered. A relay node performing analog network...
Provided by The Chinese University of Hong Kong
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Whitepapers
ADAM: An Automatic and Extensible Platform to Stress Test Android Anti-Virus Systems
April 30, 2012, 12:00am PDT
With the rising threat of smartphone malware, both academic community and commercial anti-virus companies proposed many methodologies and products to defend against smartphone malware. Thus, how...
Provided by The Chinese University of Hong Kong
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Whitepapers
A Cost-Based Heterogeneous Recovery Scheme for Distributed Storage Systems With RAID-6 Codes
April 9, 2012, 12:00am PDT
Modern distributed storage systems provide large-scale, fault-tolerant data storage. To reduce the probability of data unavailability, it is important to recover the lost data of any failed...
Provided by The Chinese University of Hong Kong
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Whitepapers
A Panoramic View of 3G Data/Control-Plane Traffic: Mobile Device Perspective
February 25, 2012, 12:00am PST
Users can access the Internet via 3G/4G cellular data networks using various types of user devices (e.g., smartphones, tablets, datacards). The authors conduct a detailed measurement study on the...
Provided by The Chinese University of Hong Kong
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Whitepapers
On the Speedup of Single-Disk Failure Recovery in XOR-Coded Storage Systems: Theory and Practice
March 16, 2012, 12:00am PDT
Modern storage systems stripe redundant data across multiple disks to provide availability guarantees against disk failures. One form of data redundancy is based on XOR-based erasure codes, which...
Provided by The Chinese University of Hong Kong
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Whitepapers
An Adaptive Delay-Minimized Route Design for Wireless Sensor-Actuator Networks
July 14, 2007, 12:00am PDT
Wireless Sensor-Actuator Networks (WSANs) have recently been suggested as an enhancement to the conventional sensor networks. The powerful and mobile actuators can patrol along different routes...
Provided by Chinese University of Hong Kong
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Whitepapers
LOFT: A Latency-Oriented Fault Tolerant Transport Protocol for Wireless Sensor-Actuator Networks
July 15, 2007, 12:00am PDT
Wireless sensor-actuator networks, or WSANs, refer to a group of sensors and actuators which collect data from the environment and perform application-specific actions in response. To act...
Provided by Chinese University of Hong Kong
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Whitepapers
A Game Theoretic Analysis on Incentive Mechanisms for Wireless Ad Hoc VoD Systems
April 17, 2012, 12:00am PDT
Wireless ad hoc networks enable the wireless devices to directly communicate with each other. An emerging application in such systems is video-on-demand service that can greatly reduce the content...
Provided by Chinese University of Hong Kong
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Whitepapers
Secure Overlay Cloud Storage With Access Control and Assured Deletion
June 22, 2012, 12:00am PDT
The authors can now outsource data backups off-site to third-party cloud storage services so as to reduce data management costs. However, they must provide security guarantees for the outsourced...
Provided by Chinese University of Hong Kong
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Whitepapers
Congestion Games on Weighted Directed Graphs, With Applications to Spectrum Sharing
June 5, 2012, 12:00am PDT
With the advance of complex large-scale networks, it is becoming increasingly important to understand how selfish and spatially distributed individuals will share network resources without...
Provided by Chinese University of Hong Kong
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Whitepapers
Utility Maximization in Peer-to-Peer Systems with Applications to Video Conferencing
July 25, 2012, 12:00am PDT
In this paper, the authors study the problem of utility maximization in P2P systems, in which aggregate application specific utilities are maximized by running distributed algorithms on P2P nodes,...
Provided by Chinese University of Hong Kong
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Whitepapers
Design and Analysis of ISP-Friendly File Distribution Protocols
November 30, 2008, 12:00am PST
In recent years, BitTorrent-like file-swarming applications are becoming so popular that they contribute to a large percentage of the current Internet traffic. Internet Service Providers (ISPs)...
Provided by Chinese University of Hong Kong
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White Papers
Regulating Wireless Access Pricing
January 30, 2011, 12:00am PST
Today's wireless networks are interconnected. A network provider can charge other network providers access prices for serving communication sessions originated from other networks. Meanwhile, a...
Provided by Chinese University of Hong Kong
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White Papers
Assured Deletion of Digital Files on Cloud
April 21, 2011, 12:00am PDT
Cloud storage (e.g., Amazon S3) offers an abstraction of infinite storage space for clients to outsource data storage in a pay-as-you-go manner. For example, SmugMug, a photo sharing website,...
Provided by Chinese University of Hong Kong
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White Papers
A Secure Cloud Backup System With Assured Deletion and Version Control
June 23, 2011, 12:00am PDT
Cloud storage is an emerging service model that enables individuals and enterprises to outsource the storage of data backups to remote cloud providers at a low cost. However, cloud clients must...
Provided by Chinese University of Hong Kong
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White Papers
A Lock-Free, Cache-Efficient Multi-Core Synchronization Mechanism for Line-Rate Network Traffic Monitoring
January 26, 2010, 12:00am PST
Line-rate data traffic monitoring in high-speed networks is essential for network management. To satisfy the line-rate requirement, one can leverage multi-core architectures to parallelize traffic...
Provided by Chinese University of Hong Kong
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White Papers
NCFS: On the Practicality and Extensibility of a Network-Coding-Based Distributed File System
July 11, 2011, 12:00am PDT
An emerging application of network coding is to improve the robustness of distributed storage. Recent theoretical work has shown that a class of regenerating codes, which are based on the concept...
Provided by Chinese University of Hong Kong
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White Papers
An Algebraic Approach to Computing the Reliability of Internet Routing
May 5, 2011, 12:00am PDT
Evaluating the reliability of Internet routing is important for an ISP to assess existing peer relationships or establish new peer relationships. Existing algorithms for network reliability...
Provided by Chinese University of Hong Kong
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White Papers
A Privacy-Preserving Defense Mechanism Against Request Forgery Attacks
September 17, 2011, 12:00am PDT
One top vulnerability in today's web applications is request forgery, in which an attacker triggers an unintentional request from a client browser to a target website and exploits the client's...
Provided by Chinese University of Hong Kong
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White Papers
Live Deduplication Storage of Virtual Machine Images in an Open-Source Cloud
September 7, 2011, 12:00am PDT
Deduplication is an approach of avoiding storing data blocks with identical content, and has been shown to effectively reduce the disk space for storing multi-gigabyte Virtual Machine (VM) images....
Provided by Chinese University of Hong Kong
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White Papers
On the Access Pricing Issues of Wireless Mesh Networks
January 1, 2011, 12:00am PST
This paper studies the use of pricing as an incentive mechanism to encourage private, self-interested nodes to participate in a public wireless mesh network and cooperate in the packet forwarding...
Provided by Chinese University of Hong Kong
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White Papers
Analyzing Credit Evolution for Credit-Based Incentive Schemes in Wireless Mesh Networks
April 16, 2011, 12:00am PDT
Incentive mechanisms are often needed in Wireless Mesh Networks (WMNs) so as to encourage nodes to relay or forward packets for other nodes. However, there is a lack of understanding on the...
Provided by Chinese University of Hong Kong
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White Papers
Identifying Pollution Attackers in Network-Coding Enabled Wireless Mesh Networks
May 6, 2011, 12:00am PDT
Pollution attack is a severe security problem in network-coding enabled Wireless Mesh Networks (WMNs). Under such form of attack, malicious nodes can easily create an epidemic spreading of...
Provided by Chinese University of Hong Kong
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White Papers
On the Performance Bounds of Practical Wireless Network Coding
December 22, 2009, 12:00am PST
Network coding is an attracting technology that has been shown to be able to improve the throughput of wireless networks. However, there still lacks fundamental understanding on how network coding...
Provided by Chinese University of Hong Kong
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White Papers
Throughput Computation in CSMA Wireless Networks With Collision Effects
July 8, 2011, 12:00am PDT
It is known that link throughputs of CSMA wireless networks can be computed from a time-reversible Markov chain arising from an Ideal CSMA Network model (ICN). In particular, this model yields...
Provided by Chinese University of Hong Kong
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White Papers
Attack Prevention for Collaborative Spectrum Sensing in Cognitive Radio Networks
September 5, 2011, 12:00am PDT
Collaborative spectrum sensing can significantly improve the detection performance of Secondary Unlicensed users (SUs). However, the performance of collaborative sensing is vulnerable to sensing...
Provided by Chinese University of Hong Kong
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White Papers
On the Degree of Freedom for Multi-Source Multi-Destination Wireless Network With Multi-Layer Relays
January 12, 2011, 12:00am PST
Degree of Freedom (DoF) region provides an approximation of capacity region in high Signal-to-Noise Ratio (SNR) regime, while sum DoF gives the scaling factor. In this correspondence, the authors...
Provided by Chinese University of Hong Kong
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White Papers
Joint Scheduling and Resource Allocation in Uplink OFDM Systems
October 28, 2008, 12:00am PDT
Orthogonal Frequency Division Multiplexing (OFDM) with dynamic scheduling and resource allocation is widely considered to be a key component of most emerging broadband wireless access networks...
Provided by Chinese University of Hong Kong
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White Papers
On the Performance of TCP Over Throughput-Optimal CSMA
May 18, 2011, 12:00am PDT
An interesting distributed throughput-optimal CSMA MAC protocol, called adaptive CSMA, was proposed recently to schedule any strictly feasible rates inside the capacity region. Of particular...
Provided by Chinese University of Hong Kong
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White Papers
Temporal Starvation in CSMA Wireless Networks
February 10, 2011, 12:00am PST
It is well known that links in CSMA wireless networks are prone to starvation. Prior works focused almost exclusively on equilibrium starvation. In this paper, the authors show that links in CSMA...
Provided by Chinese University of Hong Kong
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White Papers
Joint Design of Network Coding and Channel Decoding for Wireless Networks
July 13, 2007, 12:00am PDT
Network coding has been receiving much attention recently for its ability to improve network throughput and enhance network robustness. In this paper, the authors investigate the design of network...
Provided by Chinese University of Hong Kong
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White Papers
Physical Layer Network Coding Schemes Over Finite and Infinite Fields
November 18, 2008, 12:00am PST
Direct application of network coding at the physical layer - Physical layer Network Coding (PNC) - is a promising technique for two-way relay wireless networks. In a two-way relay network, relay...
Provided by Chinese University of Hong Kong
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White Papers
Soft Network Coding in Wireless Two-Way Relay Channels
August 27, 2009, 12:00am PDT
Application of network coding in wireless Two-Way Relay Channels (TWRC) has received much attention recently because of its ability to improve throughput significantly. In traditional designs,...
Provided by Chinese University of Hong Kong
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White Papers
Applying Physical-Layer Network Coding in Wireless Networks
February 7, 2010, 12:00am PST
A main distinguishing feature of a wireless network compared with a wired network is its broadcast nature, in which the signal transmitted by a node may reach several other nodes, and a node may...
Provided by Chinese University of Hong Kong
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White Papers
Optimal Decoding Algorithm for Asynchronous Physical-Layer Network Coding
February 11, 2011, 12:00am PST
A key issue in Physical-layer Network Coding (PNC) is how to deal with the asynchrony between signals transmitted by multiple transmitters. That is, symbols transmitted by different transmitters...
Provided by Chinese University of Hong Kong
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White Papers
Distributing Layered Encoded Video Through Caches
January 1, 2011, 12:00am PST
The efficient distribution of stored information has become a major concern in the Internet which has increasingly become a vehicle for the transport of stored video. Because of the highly...
Provided by Chinese University of Hong Kong
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White Papers
Collision-Tolerant Transmission With Narrow-Beam Antennas
December 30, 2008, 12:00am PST
The application of directional antennas in wireless ad hoc networks brings numerous benefits, such as increased spatial reuse and mitigated interference. Most MAC protocols with directional...
Provided by Chinese University of Hong Kong
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White Papers
FADE: Secure Overlay Cloud Storage With File Assured Deletion
June 29, 2010, 12:00am PDT
While one can now outsource data backup to third-party cloud storage services so as to reduce data management costs, security concerns arise in terms of ensuring the privacy and integrity of...
Provided by Chinese University of Hong Kong
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White Papers
Link Scheduling in Multi-Transmit-Receive Wireless Networks
July 11, 2011, 12:00am PDT
This paper investigates the problem of link scheduling to meet traffic demands with minimum airtime in a Multi-Transmit-Receive (MTR) wireless network. MTR networks are a new class of networks, in...
Provided by Chinese University of Hong Kong
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White Papers
On Collision-Tolerant Transmission With Directional Antennas
October 1, 2007, 12:00am PDT
The application of directional antennas in wireless networks brings numerous benefits, such as increased spatial reuse and mitigated interferences. Most MAC protocols with directional antennas are...
Provided by Chinese University of Hong Kong
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White Papers
ERP Implementation In China: Brief Summary And Case Study
June 14, 2007, 12:00am PDT
This paper is a summary of or study on several ERP implementation projects in China from 2002. These projects cover several industries including manufacturing, port and electricity. The authors...
Provided by Chinese University of Hong Kong
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White Papers
Single Image Haze Removal Using Dark Channel Prior
March 22, 2009, 12:00am PDT
In this paper, the authors propose a simple but effective image prior - dark channel prior to remove haze from a single input image. The dark channel prior is a kind of statistics of the haze-free...
Provided by Chinese University of Hong Kong
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White Papers
Joint Face Alignment With a Generic Deformable Face Model
April 6, 2011, 12:00am PDT
As having multiple images of an object is practically convenient nowadays, to jointly align them is important for subsequent studies and a wide range of applications. In this paper, the authors...
Provided by Chinese University of Hong Kong
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White Papers
Effective Carrier Sensing in CSMA Networks Under Cumulative Interference
December 11, 2009, 12:00am PST
This paper proposes and investigates the concept of a safe carrier-sensing range that can guarantee interference-safe (also termed hidden-node-free) transmissions in CSMA networks under the...
Provided by Chinese University of Hong Kong
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White Papers
Interference With Symbol-Misalignment
August 24, 2009, 12:00am PDT
This paper studies the impact of interference asynchrony among different links in a wireless network. Without deliberate coordination and cooperation among the active links, there is a naturally...
Provided by Chinese University of Hong Kong
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White Papers
Minimality Attack in Privacy Preserving Data Publishing Technical Report TR 2006-28
January 1, 2011, 12:00am PST
Data publishing generates much concern over the protection of individual privacy. In the well-known k-anonymity model and the related models such as l-diversity and (รก k)-anonymity, the adversary...
Provided by Chinese University of Hong Kong
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White Papers
Auction-Based Distributed Resource Allocation for Cooperation Transmission in Wireless Networks
August 4, 2007, 12:00am PDT
Cooperative transmission can greatly improve communication system performance by taking advantage of the broadcast nature of wireless channels. Most previous work on resource allocation for...
Provided by Chinese University of Hong Kong
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White Papers
pCloud: A Distributed System for Practical PIR
June 23, 2010, 12:00am PDT
computational Private Information Retrieval (cPIR) protocols allow a client to retrieve one bit from a database, without the server inferring any information about the queried bit. These protocols...
Provided by Chinese University of Hong Kong
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White Papers
On Oligopoly Spectrum Allocation Game in Cognitive Radio Networks With Capacity Constraints
June 16, 2009, 12:00am PDT
Dynamic spectrum sharing is a promising technology to improve spectrum utilization in the future wireless networks. The flexible spectrum management provides new opportunities for licensed primary...
Provided by Chinese University of Hong Kong
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White Papers
Safe Carrier Sensing Range in CSMA Network Under Physical Interference Model
January 23, 2009, 12:00am PST
In this paper, the authors study the setting of carrier-sensing range in 802.11 networks under the (cumulative) physical interference model. Specifically, they identify a carrier-sensing range...
Provided by Chinese University of Hong Kong
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White Papers
Proportional Fairness in Multi-Channel Multi-Rate Wireless Networks - Part I: The Case of Deterministic Channels With Application to AP Association Problem in Large-Scale WLAN
February 22, 2008, 12:00am PST
This is Part I of a two-part paper series that studies the use of the Proportional Fairness (PF) utility function as the basis for resource allocation and scheduling in multi-channel multi-rate...
Provided by Chinese University of Hong Kong
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White Papers
Revenue Maximization for Communication Networks With Usage-Based Pricing
November 4, 2010, 12:00am PDT
The authors study the optimal usage-based pricing problem in a resource-constrained network with one profit-maximizing Service Provider (SP) and multiple groups of surplus-maximizing users. With...
Provided by Chinese University of Hong Kong
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