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ETH Zurich
(306 results)-
White Papers
Flow-Level Characteristics of Spam and Ham
August 29, 2008, 12:00am PDT
Despite a large amount of effort devoted in the past years trying to limit unsolicited mail, spam is still a major global concern. Content-analysis techniques and blacklists, the most popular...
Provided by ETH Zurich
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White Papers
Federated Stream Processing Support for Real-Time Business Intelligence Applications
July 1, 2009, 12:00am PDT
This paper describes the MaxStream federated stream processing architecture to support real-time business intelligence applications. MaxStream builds on and extends the SAP MaxDB relational...
Provided by ETH Zurich
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White Papers
Engineering the Cloud From Software Modules
February 19, 2009, 12:00am PST
Cloud computing faces many of the challenges and difficulties of distributed and parallel software. While the service interface hides the actual application from the remote user, the application...
Provided by ETH Zurich
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White Papers
Network Architecture Testbeds as Platforms for Ubiquitous Computing
June 9, 2008, 12:00am PDT
Distributed Systems research, and in particular Ubiquitous Computing, has traditionally assumed the Internet as a basic underlying communications substrate. Recently, however, the Networking...
Provided by ETH Zurich
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White Papers
Meta-Debugging Pervasive Computers
May 14, 2010, 12:00am PDT
As computers get more complex, the task of programming them gets more complex as well. This is especially true for the "Pervasive Computer", which is a massively distributed system consisting of...
Provided by ETH Zurich
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White Papers
A Java-Based Framework for Real-Time Control Systems
January 1, 2010, 12:00am PST
This paper presents the Java version of the AOCS Framework. The AOCS Framework is an object-oriented software framework for real-time satellite control systems. It provides a set of design...
Provided by ETH Zurich
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White Papers
secuBT: Hacking the Hackers With User-Space Virtualization
November 20, 2009, 12:00am PST
In the age of coordinated malware distribution and zero-day exploits security becomes ever more important. This paper presents secuBT, a safe execution framework for the execution of untrusted...
Provided by ETH Zurich
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White Papers
Virtualizing Hardware With Multi-Context Recon Gurable Arrays
January 1, 2011, 12:00am PST
In contrast to processors, current reconfigurable devices totally lack programming models that would allow for device independent compilation and forward compatibility. The key to overcome this...
Provided by ETH Zurich
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White Papers
Performance Evaluation of the Collection Tree Protocol Based on Its Implementation for the Castalia Wireless Sensor Networks Simulator
August 31, 2010, 12:00am PDT
Many wireless sensor network applications rely on the availability of a collection service to route data packets towards a sink node. The service is typically accessed through well defined...
Provided by ETH Zurich
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White Papers
A First Step Towards Integration Independence
December 9, 2009, 12:00am PST
Two major forms of information integration, federation and materialization, continue to dominate the market, embedded in separate products, each with their strengths and weaknesses. Application...
Provided by ETH Zurich
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White Papers
Stream Schema: Providing and Exploiting Static Metadata for Data Stream Processing
July 20, 2009, 12:00am PDT
Schemas, and more generally metadata specifying structural and semantic constraints, are invaluable in data management. They facilitate conceptual design and enable checking of data consistency....
Provided by ETH Zurich
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White Papers
Building a Database in the Cloud
August 21, 2009, 12:00am PDT
There has been a great deal of hype about cloud computing. Cloud computing promises infinite scalability and high availability at low cost. Currently, Amazon Web Services is the most popular suite...
Provided by ETH Zurich
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White Papers
Rethinking Cost and Performance of Database Systems
December 9, 2008, 12:00am PST
Traditionally, database systems were optimized in the following way: "Given a set of machines, try to minimize the response time of each request." This paper argues that today, users would like a...
Provided by ETH Zurich
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White Papers
OpenXL: An Adaptable Web-Service Middleware
January 1, 2011, 12:00am PST
The inherent complexity of current software systems has reached a critical level. This affects the general deployment complexity in the form of a huge amount of varying Non-Functional Requirements...
Provided by ETH Zurich
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White Papers
Probabilistic Multicast
January 1, 2011, 12:00am PST
Gossip-based broadcast algorithms have been considered as a viable alternative to traditional deterministic reliable broadcast algorithms in large scale environments. However, these algorithms...
Provided by ETH Zurich
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White Papers
Embedded Systems FS 2010
March 10, 2010, 12:00am PST
The BTnode is an autonomous wireless communication and computing platform based on a Bluetooth radio and a microcontroller. It serves as a demonstration platform for research in mobile and ad-hoc...
Provided by ETH Zurich
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White Papers
Innovation, Competition And Incentives For R&D
June 1, 2010, 12:00am PDT
Exploring the links between the type of innovation and the type of competition is essential to understand the mutual impacts of competition policy and innovation policy. This is of particular...
Provided by ETH Zurich
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White Papers
What Determines The Innovation Capability Of Firm Founders?
September 1, 2009, 12:00am PDT
Innovative start-ups, not start-ups in general, seem to be important drivers of economic growth. However, little is known about how such firms look like. As activities of start-ups are strongly...
Provided by ETH Zurich
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White Papers
Insights Into The Determinants Of Innovation In Energy Efficiency
September 13, 2010, 12:00am PDT
Given the increasing interest in understanding (and supporting by means of public policy) innovative activity related to Energy Efficient Technology (EET), the author attempt to identify...
Provided by ETH Zurich
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White Papers
Understanding Radio Irregularity in Wireless Networks
March 25, 2008, 12:00am PDT
In an effort to better understand connectivity and capacity in wireless networks, the log-normal shadowing radio propagation model is used to capture radio irregularities and obstacles in the...
Provided by ETH Zurich
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White Papers
SEPIA: Privacy-Preserving Aggregation of Multi-Domain Network Events and Statistics
June 1, 2010, 12:00am PDT
Secure MultiParty Computation (MPC) allows joint privacy-preserving computations on data of multiple parties. Although MPC has been studied substantially, building solutions that are practical in...
Provided by ETH Zurich
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White Papers
Realization of RF Distance Bounding
June 9, 2010, 12:00am PDT
One of the main obstacles for the wider deployment of radio (RF) distance bounding is the lack of platforms that implement these protocols. The authors address this problem and they build a...
Provided by ETH Zurich
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White Papers
On Leveraging Partial Paths in Partially-Connected Networks
January 22, 2009, 12:00am PST
Mobile wireless network research focuses on scenarios at the extremes of the network connectivity continuum where the probability of all nodes being connected is either close to unity, assuming...
Provided by ETH Zurich
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White Papers
On the Achievable Diversity-Multiplexing Tradeoff in Interference Channels
May 11, 2009, 12:00am PDT
The authors analyze two-user single-antenna fading interference channels with perfect receive Channel State Information (CSI) and no transmit CSI. For the case of very strong interference, they...
Provided by ETH Zurich
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White Papers
Sending a Bivariate Gaussian Source Over a Gaussian MAC With Feedback
March 20, 2009, 12:00am PDT
The authors study the power-versus-distortion trade-off for the transmission of a memoryless bivariate Gaussian source over a two-to-one Gaussian multiple-access channel with perfect causal...
Provided by ETH Zurich
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White Papers
SEPIA: Security Through Private Information Aggregation
February 16, 2010, 12:00am PST
Secure Multi Party computation (MPC) allows joint privacy-preserving computations on data of multiple parties. Although MPC has been studied substantially, building solutions that are practical in...
Provided by ETH Zurich
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White Papers
Distance Hijacking Attacks on Distance Bounding Protocols
March 14, 2011, 12:00am PDT
Distance bounding protocols are typically analyzed with respect to three types of attacks: Distance Fraud, Mafia Fraud, and Terrorist Fraud. The authors define a fourth main type of attacks on...
Provided by ETH Zurich
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White Papers
Secure Ranging With Message Temporal Integrity
December 5, 2009, 12:00am PST
In this paper, the authors address the problem of delay attacks on radio frequency Time of Arrival (ToA) secure ranging. In secure ranging, two mutually trusted devices try to determine their...
Provided by ETH Zurich
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White Papers
Symbolic and Cryptographic Analysis of the Secure WS-ReliableMessaging Scenario
January 1, 2011, 12:00am PST
Web services are an important series of industry standards for adding semantics to web-based and XML-based communication, in particular among enterprises. Like the entire series, the security...
Provided by ETH Zurich
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White Papers
A Fast and Key-Efficient Reduction of Chosen- Ciphertext to Known-Plaintext Security
January 1, 2011, 12:00am PST
Motivated by the quest for reducing assumptions in security proofs in cryptography, this paper is concerned with designing efficient symmetric encryption and authentication schemes based on any...
Provided by ETH Zurich
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White Papers
Luby-Rackoff Ciphers from Weak Round Functions?
January 1, 2011, 12:00am PST
The Feistel-network is a popular structure underlying many block-ciphers where the cipher is constructed from many simpler rounds, each defined by some function which is derived from the secret...
Provided by ETH Zurich
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White Papers
Multicore OS Benchmarks: We Can Do Better
April 8, 2011, 12:00am PDT
Current multicore OS benchmarks do not provide workloads that sufficiently reflect real-world use: they typically run a single application, whereas real workloads consist of multiple concurrent...
Provided by ETH Zurich
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White Papers
SwissBox: An Architecture for Data Processing Appliances
January 12, 2011, 12:00am PST
Database appliances offer fully integrated hardware, storage, operating system, database, and related software in a single package. Database appliances have a relatively long history but the...
Provided by ETH Zurich
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White Papers
Equilibrium With Exponential Utility And Non-negative Consumption
June 15, 2011, 12:00am PDT
The authors study a multi-period Arrow-Debreu equilibrium in a heterogeneous economy populated by agents trading in a complete market. Each agent is represented by an exponential utility function,...
Provided by ETH Zurich
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White Papers
Additive Habit Formation: Consumption In Incomplete Markets With Random Endowments
June 15, 2011, 12:00am PDT
The authors provide a detailed characterization of the optimal consumption stream for the additive habit-forming utility maximization problem, in a framework of general discrete-time incomplete...
Provided by ETH Zurich
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White Papers
Conservative Delta Hedging Under Transaction Costs
March 11, 2011, 12:00am PST
Explicit robust hedging strategies for convex or concave payoffs under a continuous semimartingale model with uncertainty and small transaction costs are constructed. In an asymptotic sense, the...
Provided by ETH Zurich
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White Papers
Hedging Of Game Options With The Presence Of Transaction Costs
March 6, 2011, 12:00am PST
The authors study the problem of super - replication for game options under proportional transaction costs. They consider a multidimensional model which is an extension of the usual Black -...
Provided by ETH Zurich
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White Papers
Inferring Fundamental Value And Crash Nonlinearity From Bubble Calibration
November 24, 2010, 12:00am PST
Identifying unambiguously the presence of a bubble in an asset price remains an unsolved problem in standard econometric and financial economic approaches. A large part of the problem is that the...
Provided by ETH Zurich
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White Papers
Superhedging And Dynamic Risk Measures Under Volatility Uncertainty
November 12, 2010, 12:00am PST
The authors consider dynamic sublinear expectations (i.e., time-consistent coherent risk measures) whose scenario sets consist of singular measures corresponding to a general form of volatility...
Provided by ETH Zurich
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White Papers
Censored Gamma Regression Models For Limited Dependent Variables With An Application To Loss Given Default
November 17, 2010, 12:00am PST
Regression models for limited continuous dependent variables having a non-negligible probability of attaining exactly their limits are presented. The models differ in the number of parameters and...
Provided by ETH Zurich
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Whitepapers
Early Experience with the Barrelfish OS and the Single-Chip Cloud Computer
June 27, 2011, 12:00am PDT
Traditional OS architectures based on a single, shared-memory kernel face significant challenges from hardware trends, in particular the increasing cost of system-wide cache-coherence as core...
Provided by ETH Zurich
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Whitepapers
VF2x: Fast, Efficient Virtual Network Mapping for Real Testbed Workloads
July 26, 2012, 12:00am PDT
Distributed network testbeds like GENI aim to support a potentially large number of experiments simultaneously on a complex, widely distributed physical network by mapping each requested network...
Provided by ETH Zurich
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Whitepapers
Calling the Cloud: Enabling Mobile Phones as Interfaces to Cloud Applications
August 14, 2009, 12:00am PDT
Mobile phones are set to become the universal interface to online services and cloud computing applications. However, using them for this purpose today is limited to two configurations:...
Provided by ETH Zurich
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Whitepapers
Basis Pursuit in Sensor Networks
September 6, 2011, 12:00am PDT
In this paper, the authors propose a distributed algorithm to solve BP. This means no central node is used for the processing and no node has access to all the data: the rows of M and the vector b...
Provided by ETH Zurich
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Whitepapers
ADMM for Consensus on Colored Networks
September 3, 2012, 12:00am PDT
The authors propose a novel distributed algorithm for one of the most fundamental problems in networks: the average consensus. They view the average consensus as an optimization problem, which...
Provided by ETH Zurich
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Whitepapers
VM-MAD: A Cloud/cluster Software for Service-Oriented Academic Environments
March 26, 2013, 12:00am PDT
The availability of powerful computing hardware in IaaS clouds makes cloud computing attractive also for computational workloads that were up to now almost exclusively run on HPC clusters. In this...
Provided by ETH Zurich
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Whitepapers
Cooperative Processing for the WLAN Uplink
January 4, 2008, 12:00am PST
The authors study the potential of cooperative processing in WLAN uplink scenarios where the access points are connected to a backhaul with limited capacity. They evaluate different decoding...
Provided by ETH Zurich
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Whitepapers
An Ultra Wideband Transmitted Reference Scheme Gaining From Intersymbol Interference
November 23, 2007, 12:00am PST
The authors consider a Wireless Body Area Network (WBAN) with an average per link throughput of about 500 kbps based on an Ultra WideBand (UWB) Transmitted Reference (TR) scheme. For a long...
Provided by ETH Zurich
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Whitepapers
Clustering of Wireless Sensors Based on Ultra-Wideband Geo-Regioning
November 21, 2007, 12:00am PST
This paper introduces a novel approach for the clustering of Ultra-Wideband nodes based on their Channel Impulse Responses (CIRs) to a central unit. The authors propose to model the CIRs as...
Provided by ETH Zurich
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Whitepapers
Distributed Multiuser Cooperative Network With Heterogenous Relay Clusters
October 22, 2008, 12:00am PDT
The authors propose a multiuser two-hop cooperative network protocol, where several source/destination pairs communicate concurrently over the same physical channel without interfering to each...
Provided by ETH Zurich
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Whitepapers
Impact of Noisy Carrier Phase Synchronization on Linear Amplify-and-Forward Relaying
July 23, 2007, 12:00am PDT
The authors consider a distributed wireless network where amplify-and-forward relays assist the communication between multiple source/destination pairs. To provide a global phase reference at the...
Provided by ETH Zurich
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Whitepapers
Hardware Aware Optimization of an Ultra Low Power UWB Communication System
July 18, 2007, 12:00am PDT
A wireless body area network with an average throughput of 500 kbps based on ultra-wideband pulse position modulation is considered. For a long battery autonomy a hardware aware system...
Provided by ETH Zurich
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Whitepapers
On the Interference Robustness of Ultra-Wideband Energy Detection Receivers
July 18, 2007, 12:00am PDT
This paper analyzes the performance of Ultra-Wideband energy detection receivers for binary pulse position modulation in the presence of narrowband or wideband interference. The decision variable...
Provided by ETH Zurich
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Whitepapers
Robust Signal Detection in Passive RFID Systems
July 17, 2007, 12:00am PDT
This paper investigates a robust signal detection scheme for the uplink communication in radio frequency identification systems. An optimum Maximum-Likelihood Sequence Detector (MLSD) scheme and a...
Provided by ETH Zurich
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Whitepapers
Carrier Phase Synchronization of Multiple Distributed Nodes in a Wireless Network
July 24, 2007, 12:00am PDT
In this paper, the authors present a method for achieving global carrier phase synchronization in a wireless network of distributed, autonomous nodes. Other authors who have investigated this...
Provided by ETH Zurich
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Whitepapers
On Achievable Rates of MIMO Systems With Nonlinear Receivers
June 29, 2007, 12:00am PDT
Multiple Input Multiple Output (MIMO) communication systems are popular for achieving high rates, but at the same time they suffer from high implementation cost. Hence, their adoption to future...
Provided by ETH Zurich
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Whitepapers
On Capacity Scaling of (Long) MIMO Amplify-and-Forward Multihop Networks
August 10, 2009, 12:00am PDT
The authors consider wireless Multiple-Input-Multiple-Output (MIMO) communication between nS no-cooperating source antennas and nD fully cooperating destination antennas. Let them suppose the...
Provided by ETH Zurich
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Whitepapers
Optimum Time-Division in MIMO Two-Way Decode-and-Forward Relaying Systems
November 25, 2008, 12:00am PST
The authors consider a Multiple-Input Multiple-Output (MIMO) two-way relaying system, where two wireless terminals exchange data via a half-duplex Decode-and-Forward (DF) relay. The problem of...
Provided by ETH Zurich
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Whitepapers
Synchronization Scheme for Low Duty Cycle UWB Impulse Radio Receiver
May 11, 2008, 12:00am PDT
Ultra-Wide Band (UWB) communication shows great potential for low-power communication for wireless sensor or Body Area Network (BAN) applications. In particular, non-coherent receivers can be...
Provided by ETH Zurich
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Whitepapers
Cognitive Interference Suppression for Low Complexity UWB Transceivers
June 20, 2008, 12:00am PDT
Wireless Sensor Networks (WSN) and Body Area Networks (BAN) are two of the main expected technological breakthroughs supported by wireless communication. However, the application of such wireless...
Provided by ETH Zurich
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Whitepapers
Location-Aware Adaptation and Precoding for Low Complexity IR-UWB Receivers
June 23, 2008, 12:00am PDT
An environment is considered with many low complexity wireless mobile stations communicating to higher complexity stationary cluster heads. The cluster heads can determine the rough position of...
Provided by ETH Zurich
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Whitepapers
Achievable Rates of Nonlinear MIMO Systems With Noisy Channel State Information
July 11, 2008, 12:00am PDT
Multiple Input Multiple Output (MIMO) communication systems are well known for providing high data rates through exploiting the spatial dimension of the medium. Compared to Single Input Single...
Provided by ETH Zurich
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Whitepapers
Capacity Scaling of (Long) Non-Regenerative MIMO Multi-Hop Channels
May 5, 2008, 12:00am PDT
Consider an i.i.d. (slow and flat) Rayleigh fading MIMO multi-hop channel with nS non-cooperating source antennas and nD fully cooperating destination antennas, as well as L clusters of nR...
Provided by ETH Zurich
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Whitepapers
Universal Computation With Low-Complexity Wireless Relay Networks
November 25, 2012, 12:00am PST
The authors propose a method for enabling complex computations in a network of low-complexity wireless devices. By utilizing multi-hop relaying, such devices can form the wireless equivalent of an...
Provided by ETH Zurich
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Whitepapers
Relaying and Base Station Cooperation: A Comparative Survey for Future Cellular Networks
November 25, 2012, 12:00am PST
The authors develop a unified framework to investigate the performance of future cellular networks with relays and/or Coordinated MultiPoint (CoMP) transmission. Based on this framework, they...
Provided by ETH Zurich
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Whitepapers
Multiuser Precoding for UWB Sensor Networks
October 31, 2011, 12:00am PDT
The authors consider the downlink of an Ultra-WideBand (UWB) sensor network, i.e. communication from a central unit too many sensor nodes. The key to achieve low-complexity, low-power and low-cost...
Provided by ETH Zurich
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Whitepapers
SMILE: The First MIMO Envelope Detection Testbed
June 5, 2011, 12:00am PDT
The authors present the first implementation of a MIMO envelope detection system. Such systems have so far been theoretically studied in the framework of nonlinear MIMO. The design considered...
Provided by ETH Zurich
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Whitepapers
The Potential of Restricted PHY Cooperation for the Downlink of LTE-Advanced
June 10, 2011, 12:00am PDT
The authors investigate the potential of restricted PHY cooperation for the downlink of 4G networks. The cooperation is restricted to a cluster of eNodeBs. They distinguish between low and high...
Provided by ETH Zurich
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Whitepapers
UWB Radar Imaging Based Multipath Delay Prediction for NLOS Position Estimation
April 26, 2011, 12:00am PDT
Conventional Time-of-Arrival (ToA) based Ultra-WideBand (UWB) positioning suffers strongly from multipath. Harsh propagation environments or Non-Line-Of-Sight (NLOS) situations lead to biased...
Provided by ETH Zurich
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Whitepapers
Localization Via Taylor Series Approximation for UWB Based Human Motion Tracking
April 2, 2011, 12:00am PDT
In this paper, the authors propose and investigate a low-complexity human motion tracking system which is based on Ultra-WideBand (UWB) radio nodes. The Maximum Likelihood (ML) solution of the...
Provided by ETH Zurich
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Whitepapers
Constrained Maximum Likelihood Positioning for UWB Based Human Motion Tracking
November 5, 2010, 12:00am PDT
In this paper, the problem of human motion tracking with ultra-wideband radio nodes is addressed. The authors provide a general maximum likelihood formulation of the positioning problem based on...
Provided by ETH Zurich
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Whitepapers
Asymmetric Data Rate Transmission in Two-Way Relaying Systems With Network Coding
February 10, 2010, 12:00am PST
The authors propose a novel transmission scheme for the broadcast phase of two-way relaying systems. The proposed scheme employs network coding at the relay and is able to transmit with asymmetric...
Provided by ETH Zurich
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Whitepapers
Channel Estimation for Very Low Power MIMO Envelope Detectors
January 21, 2010, 12:00am PST
The authors consider a MIMO system for very low-power applications, e.g., sensor networks, where the receiver employs an envelope detector at each receive antenna. Properties of such systems have...
Provided by ETH Zurich
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Whitepapers
Low Complexity Positioning System for Indoor Multipath Environments
January 18, 2010, 12:00am PST
In this paper, the authors consider localization based on the Time-of-Arrival (ToA) of Ultra-WideBand (UWB) impulse radio pulses. They present a receiver structure for ToA estimation, which can be...
Provided by ETH Zurich
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Whitepapers
Performance of a Cluster-Based MAC Protocol in Multiuser MIMO Wireless LANs
April 23, 2010, 12:00am PDT
The IEEE 802.11n specifies MIMO techniques to enhance data rate in WLANs. However, using Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA), it can support only point-to-point links....
Provided by ETH Zurich
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Whitepapers
When Do Non-Regenerative Two-Hop Relaying Networks Require a Global Phase Reference?
May 29, 2009, 12:00am PDT
The authors consider a distributed wireless multiuser network with non-regenerative relays, where the gain factors are computed from channel estimates. They are to be chosen such that multiple...
Provided by ETH Zurich
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Whitepapers
Distributed Gain Matrix Optimization in Non-Regenerative MIMO Relay Networks
November 25, 2009, 12:00am PST
The authors consider a half-duplex multiple-input multiple-output relay network with multiple source and relay nodes and a set of collocated destination antennas. Each relay is equipped with...
Provided by ETH Zurich
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Whitepapers
On the Diversity-Multiplexing Tradeoff of Multiuser Amplify & Forward Multihop Networks
November 26, 2009, 12:00am PST
The understanding of fundamental performance limits in wireless networks is one of the main foci of current wireless research. Insightful and popular performance measures in this context are...
Provided by ETH Zurich
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Whitepapers
Diversity and Spatial Multiplexing of MIMO Amplitude Detection Receivers
December 8, 2009, 12:00am PST
The authors consider nonlinear MIMO systems that use amplitude-only (envelope) receivers. Such systems are interesting for low-power, low-complexity applications like sensor networks. They study...
Provided by ETH Zurich
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Whitepapers
Low Power UWB Transceivers for ISI Limited Environments: Design and Performance Verification
June 23, 2009, 12:00am PDT
Recently, the authors proposed an FCC compliant, ultra low power UWB transceiver based on Binary Pulse Position Modulation (BPPM) and a symbol-wise Energy Detector (ED). By means of a rigorous low...
Provided by ETH Zurich
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