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University of Cambridge
(308 results)-
White Papers
Understanding Victims: Six Principles for Systems Security
June 11, 2009, 12:00am PDT
The success of many attacks on computer systems can be traced back to the security engineers not understanding the psychology of the system users they meant to protect. It examined a variety of...
Provided by University of Cambridge
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White Papers
Cooperative Attack and Defense in Distributed Networks
June 1, 2008, 12:00am PDT
Computer networks are becoming increasingly decentralized. No single entity controls the entire system; therefore, no entity can compel compliance. Peer-to-peer file sharing systems connect users...
Provided by University of Cambridge
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White Papers
The Snooping Dragon: Social-Malware Surveillance of the Tibetan Movement
March 1, 2009, 12:00am PST
This paper says about a case of malware-based electronic surveillance of a political organisation by the agents of a nation state. While malware attacks are not new, two aspects of this case make...
Provided by University of Cambridge
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White Papers
Stopping Spam by Extrusion Detection
January 1, 2009, 12:00am PST
End users are often unaware that their systems have been compromised and are being used to send bulk unsolicited email (spam). This paper shows how automated processing of the email logs recorded...
Provided by University of Cambridge
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White Papers
Security Economics and European Policy
June 23, 2008, 12:00am PDT
As Europe moves online, information security is becoming increasingly important: first, because the direct and indirect losses are now economically significant; and second, because growing public...
Provided by University of Cambridge
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White Papers
Traffic Analysis of the HTTP Protocol Over TLS
January 1, 2009, 12:00am PST
The paper analyzes attacks that take advantage of the data length information leaked by HTTP transactions over the TLS protocol, in order to link clients with particular resources they might...
Provided by University of Cambridge
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White Papers
Practical Experiences With Wireless Integration Using Mobile IPv6
January 1, 2009, 12:00am PST
World over, mobile Internet access has shown strong growth, fuelled by the increasing popularity of WiFi (802.11b-based WLANs), and the world-wide deployment of wide-area wireless networks such as...
Provided by University of Cambridge
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White Papers
Securing Peer-to-Peer Content Sharing Service From Poisoning Attacks
June 20, 2008, 12:00am PDT
Poisoning attacks in the Peer-to-Peer (P2P) content sharing service have become a serious security problem on the global Internet due to the features of P2P systems such as self-organization,...
Provided by University of Cambridge
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White Papers
TDMA for Long Distance Wireless Networks
September 21, 2009, 12:00am PDT
Off late the UC Berkeley TIER Project studied the need to deploy network infrastructure to emerging regions. Their goal was to "Address the challenges in bringing the Information Technology...
Provided by University of Cambridge
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White Papers
Understanding Scam Victims: Seven Principles for Systems Security
August 1, 2009, 12:00am PDT
The success of many attacks on computer systems can be traced back to the security engineers not understanding the psychology of the system users they meant to protect. The paper examines a...
Provided by University of Cambridge
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White Papers
Resource Provisioning for Virtualized Server Applications
November 1, 2009, 12:00am PDT
Data centre virtualization creates an agile environment for application deployment. Applications run within one or more virtual machines and are hosted on various servers throughout the data...
Provided by University of Cambridge
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White Papers
An Analysis of Hard Drive Energy Consumption
October 24, 2008, 12:00am PDT
The increasing storage capacity and necessary redundancy of data centers and other large-scale IT facilities has drawn attention to the issue of reducing the power consumption of hard drives. This...
Provided by University of Cambridge
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White Papers
Jones Optimality and Hardware Virtualization: A Report on Work in Progress
December 2, 2007, 12:00am PST
The growing popularity of hardware virtualization (VMware and Xen being two prominent implementations) lead to examine the common ground between this yet-again vibrant technology and partial...
Provided by University of Cambridge
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White Papers
Live Migration of Virtual Machines
January 1, 2010, 12:00am PST
In this paper the design options for migrating OSes running services with liveness constraints, focusing on data center and cluster environments are considered. The paper introduces and analyzes...
Provided by University of Cambridge
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White Papers
Learning the Switching Rate by Discretising Bernoulli Sources Online Phishing Pages
April 18, 2009, 12:00am PDT
The expert tracking algorithm Fixed-Share depends on a parameter, called the switching rate. The switching rate can be learned online with regret 1 2 log T + O(1) bits. The current fastest method...
Provided by University of Cambridge
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White Papers
The Marketability Of Bank Assets And Managerial Rents: Implications For Financial Stability
February 4, 2008, 12:00am PST
Financial innovation and greater information availability have increased the tradability of bank assets and reduced banks' dependence on individual bank managers as private information in the...
Provided by University of Cambridge
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White Papers
Internet Routing Policies and Round-Trip-Times
January 1, 2010, 12:00am PST
Round Trip Times (RTTs) play an important role in Internet measurements. In this paper, authors explore some of the ways in which routing policies impact RTTs. In particular, they investigate how...
Provided by University of Cambridge
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White Papers
Modelling Airline Network Routing and Scheduling Under Airport Capacity Constraints
July 2, 2008, 12:00am PDT
A flight routing and scheduling model is under development that predicts airline routing and scheduling under airport capacity constraints. It consists of several components describing different...
Provided by University of Cambridge
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White Papers
VOIP on Wireless LAN: A Comprehensive Review
February 29, 2008, 12:00am PST
VoIP requires timely servicing of the voice traffic, which is a challenging task in WLANs, even when using QoS enforcement. The use of Wireless LANs (WLANs) is more and more at present. Voice over...
Provided by University of Cambridge
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White Papers
A Better X86 Memory Model: X86-TSO
June 4, 2009, 12:00am PDT
Real multiprocessors do not provide the sequentially consistent memory that is assumed by most work on semantics and verification. Instead, they have relaxed memory models, typically described in...
Provided by University of Cambridge
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White Papers
X86-TSO: A Rigorous and Usable Programmer's Model for X86 Multiprocessors
May 17, 2010, 12:00am PDT
Exploiting the multiprocessors that have recently become ubiquitous requires high-performance and reliable concurrent systems code, for concurrent data structures, operating system kernels,...
Provided by University of Cambridge
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White Papers
The Semantics of X86 Multiprocessor Machine Code Supplementary Examples
October 24, 2008, 12:00am PDT
This note contains supplementary details for the paper The Semantics of x86 Multiprocessor Machine Code [SSZN+09], with an informal-mathematics paper of the axiomatic memory model, and...
Provided by University of Cambridge
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White Papers
The Semantics of X86-CC Multiprocessor Machine Code
November 13, 2008, 12:00am PST
Multiprocessors are now dominant, but real multiprocessors do not provide the sequentially consistent memory that is assumed by most work on semantics and verification. Instead, they have subtle...
Provided by University of Cambridge
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White Papers
Steganographic Message Broadcasting Using Web Protocols
September 26, 2010, 12:00am PDT
The project involved creating a pair of programs that allow arbitrary files to be hidden in cover HTTP network traffic. The server and client are implemented as plugins to a web server and a web...
Provided by University of Cambridge
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White Papers
Toward Natural Human-Robot Interaction: Exploring Facial Expression Synthesis on an Android Robot
July 15, 2009, 12:00am PDT
Robots are entering domestic environments in increasing number. However, the present means for interacting with them is quite limited and difficult for people who are not technically inclined or...
Provided by University of Cambridge
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White Papers
Xen 3.0 and the Art of Virtualization
December 12, 2010, 12:00am PST
The Xen Virtual Machine Monitor will soon be undergoing its third major release, and is maturing into a stable, secure, and full-featured virtualization solution for Linux and other operating...
Provided by University of Cambridge
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White Papers
Enforcing End-to-End Application Security in the Cloud
October 26, 2010, 12:00am PDT
Security engineering must be integrated with all stages of application specification and development to be effective. Doing this properly is increasingly critical as organisations rush to offload...
Provided by University of Cambridge
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White Papers
Scripting the Cloud With Skywriting
May 27, 2010, 12:00am PDT
Recent distributed computing frameworks - such as MapReduce, Hadoop and Dryad - have made it simple to exploit multiple machines in a compute cloud. However, these frameworks use coordination...
Provided by University of Cambridge
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White Papers
Turning Down the LAMP: Software Specialisation for the Cloud
May 26, 2010, 12:00am PDT
The wide availability of cloud computing offers an unprecedented opportunity to rethink how the authors construct applications. The cloud is currently mostly used to package up existing software...
Provided by University of Cambridge
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White Papers
Reconstructing I/O
January 1, 2011, 12:00am PST
The authors present a next-generation architecture that addresses problems of dependability, maintainability, and manageability of I/O devices and their software drivers on the PC platform. The...
Provided by University of Cambridge
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White Papers
Speech and Speech Recognition During Dictation Corrections
August 28, 2006, 12:00am PDT
A natural way to correct errors made while dictating to a computer is to respeak portions of the original sentence. But often spoken corrections are themselves misrecognized, costing the user time...
Provided by University of Cambridge
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White Papers
An ECN Probe-Based Connection Acceptance Control
November 5, 2007, 12:00am PST
Connection acceptance control is a mechanism which can be used to moderate the load placed on a network by turning away connection requests during times of overload. Traditionally these mechanisms...
Provided by University of Cambridge
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White Papers
Safe Hardware Access With the Xen Virtual Machine Monitor
January 1, 2011, 12:00am PST
The Xen virtual machine monitor allows multiple operating systems to execute concurrently on commodity x86 hardware, providing a solution for server consolidation and utility computing. In the...
Provided by University of Cambridge
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White Papers
Reheating Cold Topics(in Networking)
March 18, 2009, 12:00am PDT
It has been proposed that research in certain areas is to be avoided when those areas have gone cold. While previous work concentrated on detecting the temperature of a research topic, this work...
Provided by University of Cambridge
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White Papers
Low Interest Rates And Housing Booms: The Role Of Capital Inflows, Monetary Policy And Financial Innovation
October 1, 2010, 12:00am PDT
A number of OECD countries experienced an environment of low interest rates and a rapid increase in housing market activity during the last decade. Previous work suggests three potential...
Provided by University of Cambridge
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White Papers
The Past, Present And Future Of Industrial Policy In India: Adapting To The Changing Domestic And International Environment
December 1, 2008, 12:00am PST
This paper takes a wide view of industrial policy, emphasising the government's continuing coordinating role in various spheres. It regards the institution of the Planning Commission as a major...
Provided by University of Cambridge
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White Papers
Do The English Legal Origin Countries Have More Dispersed Share Ownership And More Developed Financial Systems?
December 1, 2008, 12:00am PST
The essence of the legal origin hypothesis is that a country with an English legal origin provides better investor and creditor protection and experiences greater financial development; financial...
Provided by University of Cambridge
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White Papers
Tiger, Tiger, Burning Bright? Industrial Policy Lessons From Ireland And East Asia For Small African Economies
December 1, 2008, 12:00am PST
African countries can learn fro other so-called 'Tiger' economies including Ireland and the East and South Asian countries. The Irish model is relevant not least because of its emphasis on...
Provided by University of Cambridge
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White Papers
Revisiting The Party Paradox Of Finance Capitalism: Evidence From Switzerland, Sweden And The Netherlands
December 1, 2008, 12:00am PST
The 'Party paradox' paper claims that centre-left parties have a genuine interest in pro-shareholder corporate governance reforms, while centre-right parties oppose such reforms. Based on case...
Provided by University of Cambridge
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White Papers
Assessing The Long-Run Economic Impact Of Labour Law Systems: A Theoretical Reappraisal And Analysis Of New Time Series Data
June 1, 2008, 12:00am PDT
Standard economic theory sees labor law as an exogenous interference with market relations and predicts mostly negative impacts on employment and productivity. The authors argue for a more nuanced...
Provided by University of Cambridge
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White Papers
Dynamic SLA-Based QoS Control for Third Generation Wireless Networks: The CADENUS Extension
November 8, 2007, 12:00am PST
With the evolution of QoS-capable third generation wireless networks, the wireless network community has been increasingly looking for a framework that can provide an effective, network...
Provided by University of Cambridge
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White Papers
Distributed Multicast Grouping for Publish/Subscribe Over Mobile Ad Hoc Networks
January 1, 2012, 12:00am PST
Event broker grids that deploy the publish/subscribe communication paradigm extend the capabilities of seamless messaging in heterogeneous network environments. In order to support such mixed...
Provided by University of Cambridge
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White Papers
Empirical Evaluation of Hybrid Opportunistic Networks
January 1, 2012, 12:00am PST
In this paper, the authors study the utility of opportunistic communication systems with the co-existence of network infrastructure using three real experimental deployments. They study how some...
Provided by University of Cambridge
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White Papers
Identifying Social Communities in Complex Communications for Network Efficiency
December 29, 2008, 12:00am PST
Complex communication networks, more particular Mobile Ad Hoc NETworks (MANET) and Pocket Switched Networks (PSN), rely on short range radio and device mobility to transfer data across the...
Provided by University of Cambridge
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White Papers
Osmosis in Pocket Switched Networks
September 4, 2006, 12:00am PDT
The increase in the variety and capability of mobile communications devices carried by people today has made it possible to envision a new class of networks called Pocket Switched Networks (PSNs)....
Provided by University of Cambridge
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White Papers
On the Security of Internet Banking in South Korea
March 6, 2010, 12:00am PST
South Korean Internet banking systems have a unique way of enforcing security controls. Users are obliged to install proprietary security software - typically an ActiveX plugin that implements a...
Provided by University of Cambridge
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White Papers
Physical Layer Impact Upon Packet Errors
January 1, 2012, 12:00am PST
The authors postulate a future for optical networks where data is more susceptible to errors than has been the case to date. This paper builds upon a previous study that highlighted...
Provided by University of Cambridge
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White Papers
Efficient Application Identification and the Temporal and Spatial Stability of Classification Schema
October 16, 2008, 12:00am PDT
Motivated by the importance of accurate identification for a range of applications, this paper compares and contrasts the effective and efficient classification of network-based applications using...
Provided by University of Cambridge
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White Papers
Techniques for Flow Inversion on Sampled Data
March 27, 2008, 12:00am PDT
The distribution of flow sizes is a quantity of interest fundamental to traffic engineering and network modelling and only likely to become more important in the future. The recovery of the...
Provided by University of Cambridge
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White Papers
Revisiting the Issues on Netflow Sample and Export Performance
June 1, 2008, 12:00am PDT
The high volume of packets and packet rates of traffic on some router links makes it exceedingly difficult for routers to examine every packet in order to keep detailed statistics about the...
Provided by University of Cambridge
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White Papers
A Machine Learning Approach for Efficient Traffic Classification
May 11, 2007, 12:00am PDT
Online traffic classification continues to be of long-term interest to the networking community. It serves as the input for practical solutions such as network monitoring, quality-of-service and...
Provided by University of Cambridge
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White Papers
GTVS: Boosting the Collection of Application Traffic Ground Truth
February 27, 2009, 12:00am PST
Interesting research in the areas of traffic classification, network monitoring, and application-oriented analysis can not proceed without real traffic traces, labeled with actual application...
Provided by University of Cambridge
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White Papers
Tracking Elephant Flows in Internet Backbone Traffic with an FPGA-Based Cache
June 10, 2009, 12:00am PDT
This paper presents an FPGA-friendly approach to tracking elephant flows in network traffic. The authors' approach, Single Step Segmented Least Recently Used (S3-LRU) policy, is a network...
Provided by University of Cambridge
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White Papers
A Marriage of Rely/Guarantee and Separation Logic
June 14, 2007, 12:00am PDT
In the quest for tractable methods for reasoning about concurrent algorithms both rely/guarantee logic and separation logic have made great advances. They both seek to tame, or control, the...
Provided by University of Cambridge
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White Papers
Workload Characterization of the Specjms2007 Benchmark
July 23, 2007, 12:00am PDT
Message-Oriented Middleware (MOM) is at the core of a vast number of financial services and telco applications, and is gaining increasing traction in other industries, such as manufacturing,...
Provided by University of Cambridge
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White Papers
Designing a Workload Scenario for Benchmarking Message-Oriented Middleware
January 15, 2007, 12:00am PST
Message-Oriented Middleware (MOM) is increasingly adopted as an enabling technology for modern information driven applications like event-driven supply chain management, transport information...
Provided by University of Cambridge
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White Papers
Nomadic Pict: Programming Languages, Communication Infrastructure Overlays, and Semantics for Mobile Computation
February 3, 2010, 12:00am PST
Mobile computation, in which executing computations can move from one physical computing device to another, is a recurring theme: from OS process migration, to language-level mobility, to virtual...
Provided by University of Cambridge
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White Papers
Network Clustering Via Spectral Projections
May 9, 2011, 12:00am PDT
This paper proposes a novel non-parametric technique for clustering networks based on their structure. Many topological measures have been introduced in the literature to characterize topological...
Provided by University of Cambridge
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White Papers
On Next-Generation Telco-Managed P2P TV Architectures
January 25, 2008, 12:00am PST
In recent years, Telcos worldwide have deployed IPTV networks to offer cable TV-like services over the IP backbones. Such walled garden IPTV networks are provisioned to guarantee the quality of...
Provided by University of Cambridge
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White Papers
Possibility, Impossibility and Cheat-Sensitivity of Quantum Bit String Commitment
November 8, 2007, 12:00am PST
Unconditionally secure non-relativistic bit commitment is known to be impossible in both the classical and the quantum worlds. But when committing to a string of n bits at once, how far can they...
Provided by University of Cambridge
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White Papers
Using Dust Clouds to Enhance Anonymous Communication
May 7, 2010, 12:00am PDT
Cloud computing platforms, such as Amazon EC2, enable customers to lease several Virtual Machines (VMs) on a per-hour basis. The customer can now obtain a dynamic and diverse collection of...
Provided by University of Cambridge
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White Papers
Volatile FPGA Design Security - A Survey
April 17, 2008, 12:00am PDT
Volatile FPGAs, the dominant type of programmable logic devices, are used in space, military, automotive, and consumer electronics applications which require them to operate in a wide range of...
Provided by University of Cambridge
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White Papers
A Location Prediction Algorithm for Directional Communication
June 16, 2008, 12:00am PDT
Directional antennas concentrate the transmitted power into a specified direction and form a directional beam pointing to a receiver. Directional communication can bring benefits in terms of power...
Provided by University of Cambridge
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White Papers
Security Across Disparate Management Domains in MANETs
July 31, 2008, 12:00am PDT
Creating a division between inter-domain and intra-domain routing is expected to assist in meeting the challenges of future MANET deployments in terms of heterogeneity and administrative...
Provided by University of Cambridge
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White Papers
A Metalanguage for Structural Operational Semantics
August 14, 2007, 12:00am PDT
This paper introduces MLSOS, a functional meta-language for declaring and animating definitions of structural operational semantics. The authors claim that MLSOS allows animation of operational...
Provided by University of Cambridge
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White Papers
Bootstrapping the Adoption of Internet Security Protocols
June 28, 2006, 12:00am PDT
The deployment of network-wide security enhancements to the Internet has proven more difficult than many had initially anticipated. The authors leverage existing models of networks' value to model...
Provided by University of Cambridge
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White Papers
Verifying Generics and Delegates
March 31, 2010, 12:00am PDT
Recently, object-oriented languages, such as C#, have been extended with language features prevalent in most functional languages: parametric polymorphism and higher-order functions. In the OO...
Provided by University of Cambridge
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White Papers
Dynamically Checking Ownership Policies in Concurrent C/C++ Programs
April 19, 2010, 12:00am PDT
Concurrent programming errors arise when threads share data incorrectly. Programmers often avoid these errors by using synchronization to enforce a simple ownership policy: data is either owned...
Provided by University of Cambridge
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White Papers
Autonomic QoS Control in Enterprise Grid Environments Using Online Simulation
July 13, 2008, 12:00am PDT
As Grid Computing increasingly enters the commercial domain, performance and Quality of Service (QoS) issues are becoming a major concern. The inherent complexity, heterogeneity and dynamics of...
Provided by University of Cambridge
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White Papers
QPME - Queueing Petri Net Modeling Environment
June 10, 2006, 12:00am PDT
Queueing Petri nets are a powerful formalism that can be exploited for modeling distributed systems and analyzing their performance and scalability. However, currently available tools for modeling...
Provided by University of Cambridge
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White Papers
Policy Generation Framework for Large-Scale Storage Infrastructures
October 1, 2010, 12:00am PDT
Cloud computing is gaining acceptance among mainstream technology users. Storage cloud providers often employ Storage Area Networks (SANs) to provide elasticity, rapid adaptability to changing...
Provided by University of Cambridge
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White Papers
Distributed Middleware Enforcement of Event Flow Security Policy
October 26, 2010, 12:00am PDT
Distributed, event-driven applications that process sensitive user data and involve multiple organisational domains must comply with complex security requirements. Ideally, developers want to...
Provided by University of Cambridge
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White Papers
Fast Exclusion of Errant Devices From Vehicular Networks
April 4, 2008, 12:00am PDT
Vehicular networks, in which cars communicate wirelessly to exchange information on traffic conditions, offer a promising way to improve road safety. Yet ensuring the correct functioning of such a...
Provided by University of Cambridge
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White Papers
Finding a Data Blackhole in Bluetooth Scanning
June 9, 2009, 12:00am PDT
Bluetooth scanning has now been widely used in different scenarios to study users' mobility and their underlying social network. However, scanning for Bluetooth enabled devices does not always...
Provided by University of Cambridge
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White Papers
On the Effectiveness of an Opportunistic Traffic Management System for Vehicular Networks
June 30, 2011, 12:00am PDT
Road congestion results in a huge waste of time and productivity for millions of people. A possible way to deal with this problem is to have transportation authorities distribute traffic...
Provided by University of Cambridge
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White Papers
Evaluating Temporal Robustness of Mobile Networks
October 29, 2011, 12:00am PDT
The application of complex network models to communication systems has led to several important results: nonetheless, previous research has often neglected to take into account their temporal...
Provided by University of Cambridge
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White Papers
Design and Analysis of Low-Density Parity-Check Codes for Block-Fading Channels
January 30, 2007, 12:00am PST
The authors solve the problem of designing powerful Low Density Parity-Check (LDPC) codes with iterative decoding for the block-fading channel. They present a new family of full-diversity LDPC...
Provided by University of Cambridge
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White Papers
A Vision for Wireless Access on the Road Network
January 15, 2007, 12:00am PST
Metropolitan area wireless networks are currently being deployed in major cities around the world, whilst in tandem there has been much research into vehicle-to-roadside communication. New...
Provided by University of Cambridge
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White Papers
Evaluation Framework of Location Privacy of Wireless Mobile Systems With Arbitrary Beam Pattern
March 14, 2007, 12:00am PDT
Position localization of transmitters can be carried out by an adversary owning a network of pervasive receivers, which can pinpoint the victim mobile nodes' locations with high temporal and...
Provided by University of Cambridge
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White Papers
On the Performance of Iterative Demapping and Decoding Techniques Over Quasi-Static Fading Channels
July 3, 2007, 12:00am PDT
In this paper, the authors investigate in detail the performance of iterative demapping and decoding techniques over quasi-static fading channels both with and without antenna diversity. In...
Provided by University of Cambridge
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