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University of California
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Whitepapers
A Benes Packet Network
August 2, 2012, 12:00am PDT
Benes networks are constructed with simple switch modules and have many advantages, including small latency and requiring only an almost linear number of switch modules. As circuit-switches, Benes...
Provided by University of California
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Whitepapers
Collaborative High Accuracy Localization in Mobile Multipath Environments
June 13, 2012, 12:00am PDT
The authors study the problem of high accuracy localization of mobile nodes in a multipath-rich environment where sub-meter accuracies are required. They employ a peer-to-peer framework where the...
Provided by University of California
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Whitepapers
Cooperative Localization Using Angle of Arrival Measurements: Sequential Algorithms and Non-Line-of-Sight Suppression
June 18, 2012, 12:00am PDT
The authors investigate localization of a source based on Angle of Arrival (AoA) measurements made at a geographically dispersed network of cooperating receivers. The goal is to efficiently...
Provided by University of California
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Whitepapers
A Novel Delay-And Reliability-Aware Inter-Vehicle Routing Protocol
July 14, 2010, 12:00am PDT
Intelligent transportation systems could improve transportation safety, driving assistance and traffic management system. Vehicular Ad hoc NETwork (VANET) is an emerging field of technology,...
Provided by University of California
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Whitepapers
On Wormhole Attacks in Under-Water Sensor Networks: A Two-Tier Localization Approach
January 1, 2012, 12:00am PST
Under-Water Sensor Network (UWSN) is a novel networking paradigm to explore the uninhabited oceans. However, the characteristics of this new network, such as huge propagation delay, floating node...
Provided by University of California
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Whitepapers
Formal Notions of Anonymity for Peer-to-Peer Networks
January 1, 2012, 12:00am PST
Providing anonymity support for Peer-To-Peer (P2P) overlay networks is critical. Otherwise, potential privacy attacks (e.g., network address trace-back) may deter a storage source from providing...
Provided by University of California
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Whitepapers
Reduced-Bandwidth Multithreaded Algorithms for Sparse Matrix-Vector Multiplication
February 1, 2011, 12:00am PST
On multicore architectures, the ratio of peak memory bandwidth to peak floating-point performance (byte: flop ratio) is decreasing as core counts increase, further limiting the performance of...
Provided by University of California
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White Papers
Reformulation of XML Queries and Constraints
October 18, 2008, 12:00am PDT
The authors state and solve the query reformulation problem for XML publishing in a general setting that allows mixed (XML and relational) storage for the proprietary data and exploits...
Provided by University of California
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White Papers
Decision Tree Organization for GUI Generation
January 1, 2008, 12:00am PST
An application's decision tree is a state machine which the user traverses, filling in input and making decisions, to reach a runnable state. In previous work the author showed how a decision tree...
Provided by University of California
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White Papers
XML Processing in DHT Networks
November 22, 2007, 12:00am PST
This paper studies the scalable management of XML data in P2P networks based on Distributed Hash Tables (DHTs). Performance limitations are identified in this context, and an array of techniques...
Provided by University of California
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White Papers
Sketch-Based Summarization of Ordered XML Streams
July 14, 2008, 12:00am PDT
XML streams, such as RSS feeds or complex event streams, are becoming increasingly pervasive as they provide the foundation for a wide range of emerging applications. An important problem in this...
Provided by University of California
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White Papers
An XML-Based Protocol for Distributed Event Services
January 1, 2008, 12:00am PST
A recent trend in distributed computing is the construction of high-performance distributed systems called computational grids. One difficulty they have encountered is that there is no standard...
Provided by University of California
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White Papers
The Design and Performance of Real-Time Java Middleware
January 1, 2008, 12:00am PST
Over 90 percent of all microprocessors are now used for real-time and embedded applications. Since the behavior of these applications is often constrained by the physical world, it is important to...
Provided by University of California
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White Papers
Adaptive Resource Management in Peer-to-Peer Middleware
January 1, 2008, 12:00am PST
Supporting distributed real-time applications in large-scale and heterogeneous distributed environments has attracted much attention recently. However, the decentralized and dynamic...
Provided by University of California
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White Papers
Titanium: A High-Performance Java Dialect
January 1, 2008, 12:00am PST
Titanium is a language and system for high-performance parallel scientific computing. Titanium uses Java as its base, thereby leveraging the advantages of that language and allowing programmers to...
Provided by University of California
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White Papers
JR: Flexible Distributed Programming in an Extended Java
January 1, 2009, 12:00am PST
Java provides a clean object-oriented programming model and allows for inherently system-independent programs. Unfortunately, Java has a limited concurrency model, providing only threads and...
Provided by University of California
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White Papers
StockMaster: A Java-Based Stock Portfolio Manager
January 1, 2008, 12:00am PST
This paper introduces StockMaster, a stock portfolio manager which uses Java applets and applications to provide portfolio information for users through a web interface. Stock-Master uses a...
Provided by University of California
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White Papers
The Productivity Benefits of IT Outsourcing
July 11, 2007, 12:00am PDT
This paper examines the productivity benefits of IT outsourcing in the credit union industry, using data on the population of U.S. credit unions from 1992-2005. Within-credit union switching from...
Provided by University of California
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White Papers
The Case for a Hybrid P2P Search Infrastructure
January 1, 2008, 12:00am PST
Popular P2P file sharing systems like Gnutella and Kazaa use unstructured network designs. These networks typically adopt flooding-based search techniques to locate files. While flooding-based...
Provided by University of California
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White Papers
Tribology and Nano-Tribology Problems in Data Storage on Hard Disks
December 4, 2008, 12:00am PST
In current "State of the art" disk drives, the flying height between slider and disk is on the order of 10 nm. The flying height will need to be reduced to approximately 3 nm to meet future...
Provided by University of California
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White Papers
An Architecture for Highly Available Wide-Area Service Composition
January 1, 2009, 12:00am PST
Service composition provides a flexible way to quickly enable new application functionalities in next generation networks. This paper focus on the scenario where next generation portal providers...
Provided by University of California
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White Papers
Ad Hoc Wireless Multicast With Mobility Prediction
January 1, 2009, 12:00am PST
An ad hoc wireless network is an infrastructureless network composed of mobile hosts. The primary concerns in ad hoc networks are bandwidth limitations and unpredictable topology changes. Thus,...
Provided by University of California
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White Papers
Supporting Aggregate Queries Over Ad-Hoc Wireless Sensor Networks
January 1, 2009, 12:00am PST
This paper shows how the database community's notion of a generic query interface for data aggregation can be applied to ad-hoc networks of sensor devices. As has been noted in the sensor network...
Provided by University of California
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White Papers
Robust, Anonymous RFID Authentication With Constant Key-Lookup
January 1, 2009, 12:00am PST
A considerable number of anonymous RFID authentication schemes have been proposed. However, current proposals either do not provide robust security guarantees, or suffer from scalability issues...
Provided by University of California
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White Papers
Scheduling in Multihop WiMAX Networks
July 31, 2008, 12:00am PDT
IEEE 802.16, popularly known as WiMAX, is at the forefront of the technology drive because of the growing demand for high-speed wireless broadband networks. Multihop WiMAX networks are...
Provided by University of California
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White Papers
Traffic Matrix Reloaded: Impact of Routing Changes
January 1, 2009, 12:00am PST
A traffic matrix represents the load from each ingress point to each egress point in an IP network. Although networks are engineered to tolerate some variation in the traffic matrix, large changes...
Provided by University of California
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White Papers
Experience in Black-Box OSPF Measurement
January 1, 2009, 12:00am PST
OSPF (Open Shortest Path First) is a widely used intra-domain routing protocol in IP networks. Internal processing delays in OSPF implementations impact the speed at which updates propagate in the...
Provided by University of California
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White Papers
A Case Study of OSPF Behavior in a Large Enterprise Network
January 1, 2009, 12:00am PST
Open Shortest Path First (OSPF) is widely deployed in IP networks to manage intra-domain routing. OSPF is a link-state protocol, in which routers reliably flood "Link State Advertisements" (LSAs),...
Provided by University of California
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White Papers
On the Spam Campaign Trail
April 6, 2008, 12:00am PDT
Over the last decade, unsolicited bulk email, or spam, has transitioned from a minor nuisance to a major scourge, adversely affecting virtually every Internet user. Industry estimates suggest that...
Provided by University of California
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White Papers
Parallel Spectral Clustering Algorithm for Large-Scale Community Data Mining
April 25, 2008, 12:00am PDT
The spectral clustering algorithm has been shown to be very effective in finding clusters of non-linear boundaries. Unfortunately, spectral clustering suffers from the scalability problem in both...
Provided by University of California
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White Papers
Adaptive Video Streaming: Pre-Encoded MPEG-4 With Bandwidth Scaling
January 1, 2008, 12:00am PST
The increasing popularity of streaming video is a cause for concern for the stability of the Internet because most streaming video content is currently delivered via UDP, without any end-to-end...
Provided by University of California
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White Papers
Stateless Load Balancing Over Multiple MPLS Paths
January 1, 2008, 12:00am PST
The paper proposes a flow-independent approach to balance the load coming from several multimedia applications (i.e., IP Telephony) over multiple paths between a source and a destination. The...
Provided by University of California
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White Papers
Characterizing the Internet Hierarchy From Multiple Vantage Points
January 1, 2008, 12:00am PST
The delivery of IP traffic through the Internet depends on the complex interactions between thousands of Autonomous Systems (ASes) that exchange routing information using the Border Gateway...
Provided by University of California
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White Papers
SANBoost: Automated SAN-Level Caching in Storage Area Networks
January 1, 2008, 12:00am PST
The storage traffic for different Logical Units (LUs) of a disk array converge at the array's cache. The cache is allocated among the LUs approximately according to their relative I/O rates. In...
Provided by University of California
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White Papers
WG: Requirements for Network Monitoring From an IDS Perspective
May 20, 2008, 12:00am PDT
Detection of malicious traffic is based on its input data, the information that is coming from network-based monitoring systems. Best detection rates would only be possible by monitoring all data...
Provided by University of California
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White Papers
A Scheme for Real-Time Channel Establishment in Wide-Area Networks
January 1, 2008, 12:00am PST
Multimedia communication involving digital audio and/or digital video has rather strict delay requirements. A real-time channel is defined in this paper as a simplex connection between a source...
Provided by University of California
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White Papers
A Service Network Architecture for a Multi-Vehicle Search Mission
January 1, 2008, 12:00am PST
Multi-vehicle applications rely on the dynamic allocation of resources such as vehicles, CPUs, bandwidth and storage, and must exhibit robustness to failures or to service degradation in general....
Provided by University of California
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White Papers
A Scalable Content-Addressable Network
January 1, 2008, 12:00am PST
Hash tables - which map "Keys" onto "Values" - are an essential building block in modern software systems. It is believed that a similar functionality would be equally valuable to large...
Provided by University of California
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White Papers
Insecurity in ATM-Based Passive Optical Networks
January 1, 2008, 12:00am PST
This paper considers the security of an ITU standard for ATM-based passive optical networks. First, it shows that the standard's encryption algorithm, called churning, has an effective 8-bit key...
Provided by University of California
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White Papers
Metropolitan Ethernet Network: A Move From LAN to MAN
August 17, 2007, 12:00am PDT
Ethernet has been the indisputable technology of choice for the Local Area Networks (LANs) for more than 30 years. Its popularity is due to its versatility, plug-n-play feature, and low cost. It...
Provided by University of California
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White Papers
Energy Characterization of the Stargate Sensor Network Gateway
January 1, 2008, 12:00am PST
This paper presents a new energy estimation model for sensor network intermediate nodes (i.e. the Crossbow XScale Stargate). Such devices are battery powered and resource constrained and commonly...
Provided by University of California
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White Papers
Highly-Resilient, Energy-Efficient Multipath Routing in Wireless Sensor Networks
January 1, 2008, 12:00am PST
Previously proposed sensor network data dissemination schemes require periodic low-rate flooding of data in order to allow recovery from failure. The paper considers constructing two kinds of...
Provided by University of California
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White Papers
Load Balancing in Dynamic Structured P2P Systems
January 1, 2008, 12:00am PST
This paper proposes an algorithm for load balancing in such heterogeneous, dynamic P2P systems. This simulation results show that in the face of rapid arrivals and departures of objects of widely...
Provided by University of California
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White Papers
Load Balancing in Structured P2P Systems
January 1, 2008, 12:00am PST
Most P2P systems that provide a DHT abstraction distribute objects among "Peer nodes" by choosing random identifiers for the objects. This could result in an O(log N) imbalance. Besides, P2P...
Provided by University of California
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White Papers
Uncoordinated Load Balancing and Congestion Games in P2P Systems
January 1, 2008, 12:00am PST
In P2P systems, users often have many choices of peers from whom to download their data. Each user cares primarily about its own response time, which depends on how many other users also choose...
Provided by University of California
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White Papers
Lightpath-Level Protection Versus Connection-Level Protection for Carrier-Grade Ethernet in a Mixed-Line-Rate Telecom Network
November 30, 2007, 12:00am PST
Ethernet is a success story in Local Area Networks (LAN). Efforts for extending its boundaries beyond LAN to the carriers' backbone networks are in progress. The paper studies the problem of...
Provided by University of California
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White Papers
A Stateful Intrusion Detection System for World-Wide Web Servers
January 1, 2008, 12:00am PST
Web servers are ubiquitous, remotely accessible, and often misconfigured. In addition, custom web-based applications may introduce vulnerabilities that are overlooked even by the most...
Provided by University of California
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White Papers
Bayesian Event Classification for Intrusion Detection
January 1, 2008, 12:00am PST
Intrusion Detection Systems (IDSs) attempt to identify attacks by comparing collected data to predefined signatures known to be malicious (misuse-based IDSs) or to a model of legal behavior...
Provided by University of California
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Whitepapers
Data Mining Techniques for (Network) Intrusion Detection Systems
January 12, 2007, 12:00am PST
In Information Security, intrusion detection is the act of detecting actions that attempt to compromise the confidentiality, integrity or availability of a resource. Intrusion detection does not,...
Provided by University of California
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White Papers
Applying Fast String Matching to Intrusion Detection
January 1, 2008, 12:00am PST
The performance of signature-based network intrusion detection tools is dominated by the string matching of packets against many signatures. This paper studies how the popular intrusion detection...
Provided by University of California
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White Papers
Characterizing and Evaluating Desktop Grids: An Empirical Study
December 1, 2007, 12:00am PST
Desktop resources are attractive for running compute-intensive distributed applications. Several systems that aggregate these resources in desktop grids have been developed. While these systems...
Provided by University of California
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White Papers
DGMonitor: A Performance Monitoring Tool for Sandbox-Based Desktop Grid Platforms
December 1, 2007, 12:00am PST
Accurate, continuous resource monitoring and profiling are critical for enabling performance tuning and scheduling optimization. In desktop grid systems that employ sandboxing, these issues are...
Provided by University of California
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White Papers
E-mail4B: An E-mail System for the Developing World
December 1, 2007, 12:00am PST
This paper presents E-mail4B, a prototype e-mail delivery system targeted for developing regions. Effectively deploying networked applications in these challenging environments requires adopting a...
Provided by University of California
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White Papers
Secure Group Services for Storage Area Networks
August 22, 2007, 12:00am PDT
Storage Area Networks, with their ability to offer high data availability, reliability and scalability, are a promising solution for the large scale storage needs of many enterprises. As with any...
Provided by University of California
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White Papers
An Intrusion Detection Tool for AODV-Based Ad Hoc Wireless Networks
August 10, 2007, 12:00am PDT
Mobile ad hoc network routing protocols are highly susceptible to subversion. Previous research in securing these protocols has typically used techniques based on encryption and redundant...
Provided by University of California
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White Papers
Escape From the Computer Lab: Education in Mobile Wireless Networks
July 31, 2007, 12:00am PDT
As mobile wireless network technology becomes widespread, the importance of education about this new form of communication is becoming critical. One of the benefits of mobile computing education...
Provided by University of California
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