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University of Southern California
(305 results)-
White Papers
Leveraging User-Specified Metadata to Personalize Image Search
November 11, 2010, 12:00am PST
The social media sites, such as Flickr and del.icio.us, allow users to upload content and annotate it with descriptive labels known as tags, join special-interest groups, etc. The authors believe...
Provided by University of Southern California
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White Papers
Comparison and Evaluation of the T-Lohi MAC for Underwater Acoustic Sensor Networks
August 29, 2008, 12:00am PDT
This paper introduces T-Lohi, a new class of distributed and energy-efficient Media-Access Protocols (MAC) for Underwater Acoustic Sensor Networks (UWSN). MAC design for UWSN faces significant...
Provided by University of Southern California (Marshall)
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White Papers
Durability of Wireless Networks of Battery-Powered Devices
January 12, 2009, 12:00am PST
Given the criticality of energy awareness in wireless networks, it has become essential to devise an improved definition of the network lifetime at the system design stage. The new definition must...
Provided by University of Southern California (Marshall)
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White Papers
Dynamic Data Compression in Multi-Hop Wireless Networks
April 10, 2009, 12:00am PDT
Data compression can save energy and increase network capacity in wireless sensor networks. However, the decision of whether and when to compress data can depend upon platform hardware, topology,...
Provided by University of Southern California (Marshall)
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White Papers
Architecture of a Satellite-Based Sensor Network for Environmental Observation
May 24, 2008, 12:00am PDT
Sensor webs are a promising technology for future earth science research because of its capability of adaptive observation from a network of in-situ and remote sensors. As important components of...
Provided by University of Southern California (Marshall)
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White Papers
Interactive Visualization of Oil Reservoir Data
July 4, 2008, 12:00am PDT
Computer-based information systems have evolved for decades and are very popular in today's market. They are well equipped with intuitive and powerful features in terms of data retrieval and...
Provided by University of Southern California (Marshall)
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White Papers
Fitting Linear and Nonlinear Growth Curve Models Using PROC NLMIXED
January 1, 2010, 12:00am PST
Longitudinal data, or data that are repeated measurements on various subjects across time, are commonplace in everyday life. Multi-level mixed models are often used for analyzing longitudinal data...
Provided by University of Southern California (Marshall)
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White Papers
Faster Network Design with Scenario Prefiltering
January 1, 2010, 12:00am PST
The whole notion of writing this paper is to introduce and evaluate the concept of relevant scenario pre-filtering. A network is designed considering all possible configurations including network...
Provided by University of Southern California (Marshall)
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White Papers
Minimizing Data Center Cooling and Server Power Costs
June 22, 2009, 12:00am PDT
Data centers have been often accused of high power consumption used for running of information technology equipment and for air conditioning. The paper focuses on total data center power...
Provided by University of Southern California (Marshall)
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White Papers
Application Profiling on Cell-based Clusters
February 14, 2009, 12:00am PST
With the aim to meet user's expectation in a better way, the knowledge available is customized using Semantic Browsing that is able to deliver contextualized dynamically generated Web content. The...
Provided by University of Southern California (Marshall)
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White Papers
On The Effectiveness Of The California Enterprise Zone Program
June 1, 2009, 12:00am PDT
Recent empirical evidence (Neumark and Kolko, 2008) finds that the California Enterprise Zone (EZ) program does not increase employment. The result is in stark contrast to other empirical work...
Provided by University of Southern California (Marshall)
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White Papers
Dilution And Enhancement Of Celebrity Brands Through Sequential Movie Releases
October 31, 2008, 12:00am PDT
This paper examines the effects of sequential movie releases on the dilution and enhancement of celebrity brands. The authors use favorability ratings collected over a 12-year period (1993 to...
Provided by University of Southern California (Marshall)
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White Papers
A Choice Model With Spatial Correlation In Preference And Response Applied To Promotional Planning In The Auto Industry
November 14, 2008, 12:00am PST
Previous research in marketing has highlighted the role of structural state dependence in consumer choice behavior by showing how consumer's current choices are affected by past purchases. The...
Provided by University of Southern California (Marshall)
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White Papers
A New Description of MOS Circuits at Switch-Level With Applications
May 7, 2008, 12:00am PDT
After analyzing the limitations of the traditional description of CMOS circuits at the gate level, this paper introduces the notions of switching and signal variables for describing the switching...
Provided by University of Southern California
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White Papers
Network Routing Application Programmer's Interface (API) and Walk Through 9.0.1
December 9, 2009, 12:00am PST
SCADDS data diffusion (at USC/ISI) and DRP (at MIT/LL) are both based on the core concept of subject-based routing. Although there are some fundamental differences between these approaches,...
Provided by University of Southern California
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White Papers
Integrating WLAN With GPRS/3G Wireless Networks
November 15, 2006, 12:00am PST
This paper describes basic features of WLAN and compares WLAN with other related wireless technologies such as Bluetooth, Home RF, 3.5G systems, LMDS. It also discusses the motivations for mobile...
Provided by University of Southern California
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White Papers
Cache Replacement Techniques for Streaming Media In Wireless Home Networks
September 9, 2008, 12:00am PDT
Wireless home networks are widely deployed due to their low cost, ease of installation, and plug-and-play capabilities with consumer electronic devices. Participating devices may cache continuous...
Provided by University of Southern California (Marshall)
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White Papers
Taming the Storage Dragon: The Adventures of HoTMaN
April 8, 2009, 12:00am PDT
HoTMaN (HoT-standby MaNager) is a joint research and development project between MySpace and USC Database Laboratory to design and develop a tool to ensure a 24x7 up-time and ease administration...
Provided by University of Southern California
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White Papers
Network Coding for Distributed Storage Systems
March 16, 2010, 12:00am PDT
Distributed storage systems provide reliable access to data through redundancy spread over individually unreliable nodes. Application scenarios include data centers, peer-to-peer storage systems,...
Provided by University of Southern California
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White Papers
Data Management Challenges of Data-Intensive Scientific Workflows
February 18, 2008, 12:00am PST
Scientific workflows play an important role in today's science. Many disciplines rely on workflow technologies to orchestrate the execution of thousands of computational tasks. Much research...
Provided by University of Southern California
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White Papers
Enabling Petascale Science: Data Management, Troubleshooting and Scalable Science Services
July 2, 2008, 12:00am PDT
DOE science applications in such diverse areas as astrophysics, biology, chemistry, combustion, fusion, high energy physics, nanoscience, and nuclear physics are generating and analyzing up to...
Provided by University of Southern California
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White Papers
Yima: A Second Generation of Continuous Media Servers
January 1, 2010, 12:00am PST
This paper report on the design, implementation and evaluation of a scalable real-time streaming architecture, termed Yima that enable applications such as video-on-demand and distance learning on...
Provided by University of Southern California
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White Papers
Srijan: A Graphical Toolkit for WSN Application Development
May 12, 2008, 12:00am PDT
Macroprogramming is an application development technique for Wireless Sensor Networks (WSNs) where the developer specifies the behavior of the system, as opposed to that of the constituent nodes....
Provided by University of Southern California
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White Papers
Faster Network Design With Scenario Pre-Filtering
January 1, 2010, 12:00am PST
The design and engineering of networks requires the consideration of many possible configurations different network topologies, bandwidths, traffic and policies. Network engineers may use network...
Provided by University of Southern California
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White Papers
Bandwidth-Aware Resource Allocation for Heterogeneous Computing Systems to Maximize Throughput
January 1, 2010, 12:00am PST
This paper considers the resource allocation problem for computing a large set of equal-sized independent tasks on heterogeneous computing systems. This problem represents the computation paradigm...
Provided by University of Southern California
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White Papers
Multilingual Knowledge Management
November 5, 2007, 12:00am PST
Although there has been substantial research in knowledge management, there has been limited work in the area of multilingual knowledge management. The purpose of this paper is to review and...
Provided by University of Southern California
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White Papers
Tailoring an Architectural Middleware Platform to a Heterogeneous Embedded Environment
October 27, 2006, 12:00am PDT
Embedded systems are rapidly growing in size, complexity, distribution, and heterogeneity. As a result, the traditional practice of developing one-off embedded applications that are often rigid...
Provided by University of Southern California
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White Papers
Comprehensive Analysis of SmartPhone OS Capabilities and Performance
April 20, 2009, 12:00am PDT
Modern technology provides the capability of integrating typical desktop functionality into pervasive devices, such as cellular phones. With the recent growth in affordable smart phone devices in...
Provided by University of Southern California
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White Papers
Delay Analysis for Max Weight Opportunistic Scheduling in Wireless Systems
December 30, 2008, 12:00am PST
Authors consider the delay properties of max-weight opportunistic scheduling in a multi-user ON/OFF wireless system, such as a multi-user downlink or uplink. It is well known that max-weight...
Provided by University of Southern California
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White Papers
Admission Control and QoS for Continuous Media Displays in MANETs
January 1, 2010, 12:00am PST
The authors consider continuous media delivery over a mobile ad-hoc network of vehicles equipped with Car-to-Car Peer-to-Peer (C2P2) devices. While the provision of high-bandwidth continuous media...
Provided by University of Southern California
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White Papers
Self-Deceptive Decision Making: Normative And Descriptive Insights
February 9, 2009, 12:00am PST
Computational modeling of human belief maintenance and decision-making processes has become increasingly important for a wide range of applications. The authors present a framework for modeling...
Provided by University of Southern California
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White Papers
Modeling Wireless Sensor Network Architectures Using AADL
December 21, 2007, 12:00am PST
Recent technological advances have enhanced the possibilities of large-scale development and commercial deployment of diverse applications using wireless sensor networks. As this development...
Provided by University of Southern California
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White Papers
Toward Quality of Information Aware Rate Control for Sensor Networks
April 3, 2010, 12:00am PDT
In sensor networks, it is the Quality of Information (QoI) delivered to the end user that is of primary interest. In general, measurements from different sensor nodes do not contribute equally to...
Provided by University of Southern California
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White Papers
Dividend policy, Dividend Initiations, And Governance
October 5, 2006, 12:00am PDT
Dividend policy can either be an outcome of strong governance or a substitute for weak governance. This paper provides evidence that dividend policy is a substitute for weak internal and external...
Provided by University of Southern California
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White Papers
Implementing Backpressure-Based Rate Control in Wireless Networks
February 13, 2009, 12:00am PST
From a theoretical standpoint, backpressure-based techniques present elegant cross-layer rate control solutions that use only local queue information. It is only recently that attempts are being...
Provided by University of Southern California
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White Papers
Grid Resource Abstraction, Virtualization, and Provisioning for Time-Targeted Applications
February 29, 2008, 12:00am PST
As a variety of science applications are integrated with large-scale HPDC (High Performance Distributed Computing) technologies, timely resource allocation is revealed as a critical requirement to...
Provided by University of Southern California
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White Papers
Scaling Properties of IEEE 802.11 Wireless Networks
February 13, 2008, 12:00am PST
The IEEE 802.11 MAC protocol has gained widespread popularity and has been adopted as the de-facto layer 2 protocols for Wireless Local Area Networks (WLANs). Because of its popularity, there has...
Provided by University of Southern California
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White Papers
Seamless High-Velocity Handover Support in Mobile WiMAX Networks
September 9, 2008, 12:00am PDT
The IEEE 802.16e standard (i.e., mobile WiMAX) has been proposed to provide connectivity in wireless networks for mobile users (including users at a vehicular speed). It is shown in the analysis...
Provided by University of Southern California
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White Papers
Reformulating Constraint Satisfaction Problems to Improve Scalability
May 12, 2007, 12:00am PDT
Constraint Programming is a powerful approach for modeling and solving many combinatorial problems, scalability, however, remains an issue in practice. Abstraction and reformulation techniques are...
Provided by University of Southern California
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White Papers
Multimedia Proxy Caching Mechanism for Quality Adaptive Streaming Applications in the Internet
January 1, 2011, 12:00am PST
The Internet has witnessed a rapid growth in deployment of Web-based streaming applications during recent years. In these applications, server should be able to perform end-to-end congestion...
Provided by University of Southern California
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White Papers
Energy-Optimal and Energy-Balanced Sorting in a Single-Hop Wireless Sensor Network
January 1, 2012, 12:00am PST
A large number of sensors networked together form self-organizing pervasive systems that provide the basis for implementation of several applications involving distributed, collaborative...
Provided by University of Southern California
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Software
USC Trojans Gameday App 2.5 (iOS)
August 25, 2011, 12:00am PDT
USC Gameday is the official Gameday App of the USC Athletic Department. If you have an iPhone and are going to a USC Football or Basketball game at the Los Angeles Memorial Coliseum or Galen...
Provided by University of Southern California - Athletics Department
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White Papers
Wireless Peer-to-Peer Scheduling in Mobile Networks
February 19, 2012, 12:00am PST
This paper considers peer-to-peer scheduling for a network with multiple wireless devices. A subset of the devices are mobile users that desire specific files. Each user may already have certain...
Provided by University of Southern California
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White Papers
Performance of Round Robin Policies for Dynamic Multichannel Access
January 30, 2010, 12:00am PST
The authors consider two simple round-robin sensing policies for dynamic multi-channel access in cognitive radio networks - one in which channel switching takes place when the primary user is...
Provided by University of Southern California
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White Papers
Writing on Dirty Paper With Resizing and Its Application to Quasi-Static Fading Broadcast Channels
April 20, 2007, 12:00am PDT
This paper studies a variant of the classical problem of "Writing on dirty paper" in which the sum of the input and the interference, or dirt, is multiplied by a random variable that models...
Provided by University of Southern California
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White Papers
A Two-Constraint Approach to Risky Cybersecurity Experiment Management
April 3, 2008, 12:00am PDT
Cybersecurity research demands extensive experimentation to be validated. This experimentation is inherently risky: it may involve any combination of live malicious code, disruptive actions and...
Provided by University of Southern California
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White Papers
Access Control for Federation of Emulab-Based Network Testbeds
July 15, 2008, 12:00am PDT
This paper describes a resource access control system for federation of Emulab-based testbeds within the DETER federation architecture. The system is based on three levels of principals and uses...
Provided by University of Southern California
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White Papers
A Federated Experiment Environment for Emulab-Based Testbeds
January 23, 2009, 12:00am PST
The authors describe an architecture for creating experimental environments across multiple cooperating Emulab-based testbeds, called the DETER Federation Architecture (DFA). The system uses...
Provided by University of Southern California
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Software
USC Health Sciences Libraries 4.51 (Mobile)
November 18, 2011, 12:00am PST
The USC Health Sciences Libraries a research library in your pocket! Search our mobile-friendly catalog HELIX for books, journals and electronic resources at Norris Medical Library and Wilson...
Provided by University of Southern California HSL
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White Papers
Automatic Request Categorization in Internet Services
January 1, 2012, 12:00am PST
Modeling system performance and workload characteristics has become essential for efficiently provisioning Internet services and for accurately predicting future resource requirements on...
Provided by University of Southern California
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White Papers
Wireless Body Area Networks: Where Does Energy Go?
July 28, 2011, 12:00am PDT
Wireless Body Area Networks (WBANs) promise to revolutionize health care in the near future. By integrating bio-sensors with a mobile phone it is possible to monitor an individual's health and...
Provided by University of Southern California
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White Papers
MCC: A High-Throughput Multi-Channel Data Collection Protocol for Wireless Sensor Networks
September 16, 2011, 12:00am PDT
The authors present the design and implementation of MCC, the first high-rate multi-channel time-scheduled protocol for fair, real-time data collection in Wireless Sensor Networks. MCC...
Provided by University of Southern California
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White Papers
Distributed Storage Codes Reduce Latency in Vehicular Networks
June 29, 2011, 12:00am PDT
The authors investigate the benefits of distributed storage using erasure codes for file sharing in vehicular networks through both analysis and realistic trace-based simulations. They show that...
Provided by University of Southern California
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White Papers
Reliability Aware Exceptions for Software Directed Fault Handling
March 22, 2011, 12:00am PDT
Today reliability emerges as a first order design constraint. Faults encountered in a chip can be classified into three categories: transient, intermittent and permanent. Fault classification...
Provided by University of Southern California
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White Papers
Semi-Markovian State Estimation and Policy Optimization for Energy Efficient Mobile Sensing
March 22, 2011, 12:00am PDT
User context monitoring on mobile devices benefits end-users by providing information support to various kinds of mobile applications. A pervasive question, however, is how the sensors on the...
Provided by University of Southern California
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White Papers
On the Combinatorial Multi-Armed Bandit Problem with Markovian Rewards
December 17, 2010, 12:00am PST
Multi-armed bandit problems provide a fundamental approach to learning under stochastic rewards, and find rich applications in a wide range of networking contexts, from Internet advertising to...
Provided by University of Southern California
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White Papers
Combinatorial Network Optimization With Unknown Variables: Multi-Armed Bandits With Linear Rewards
December 2, 2010, 12:00am PST
In the classic multi-armed bandits problem, the goal is to have a policy for dynamically operating arms that each yield stochastic rewards with unknown means. The key metric of interest is regret,...
Provided by University of Southern California
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White Papers
On the Performance of Multiuser MIMO Mesh Networks
August 25, 2010, 12:00am PDT
Over the last five years both the academia and the industry have produced evidence that wireless multi-hopping suffers from low performance. Even putting real-world constraints aside and assuming...
Provided by University of Southern California
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White Papers
Continuous Reliability Monitoring Using Adaptive Critical Path Testing
December 16, 2009, 12:00am PST
As processor reliability becomes a first order design constraint, this research argues for a need to provide continuous reliability monitoring. The authors present an adaptive critical path...
Provided by University of Southern California
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White Papers
Optimizing Content Dissemination in Heterogeneous Vehicular Networks
February 24, 2010, 12:00am PST
Disseminating shared information to many vehicles could incur significant access fees if it relies only on unicast cellular communications. The authors consider the problem of efficient content...
Provided by University of Southern California
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White Papers
Tag Spotting: Communicating Beyond Carrier Sense
June 16, 2010, 12:00am PDT
A fundamental difference between wireless and wired networks is the presence of interference among wireless links, which introduces dependencies among flows that do not share a link or node. As a...
Provided by University of Southern California
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White Papers
A Privacy Mechanism for Mobile-Based Urban Traffic Monitoring
July 7, 2010, 12:00am PDT
Participatory sensing is a paradigm that allows each participant to sense, collect and transmit information about their surroundings to either other members in the group or to a centralized...
Provided by University of Southern California
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White Papers
Coordinated Sampling in Communication Constrained Sensor Networks Using Markov Decision Processes
June 12, 2009, 12:00am PDT
The paper describes a Markov Decision Process (MDP) framework for coordinated sensing and adaptive communication in embedded sensor networks. The technique enables distributed sensor nodes to...
Provided by University of Southern California
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White Papers
Sub-Carrier Allocation in OFDM Systems: Complexity, Approximability and Algorithms
February 27, 2009, 12:00am PST
Orthogonal Frequency Division Multiplexing (OFDM) has become the de facto standard for fourth generation wireless networks. In such a network, the frequency band is divided into numerous...
Provided by University of Southern California
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White Papers
Link Scheduling in a Single Broadcast Domain Underwater Networks
February 27, 2009, 12:00am PST
Because radio waves decay rapidly in sea water, acoustic communication is the most popular choic for underwater sensor networks. However, since the propagation speed of acoustic waves are 3 orders...
Provided by University of Southern California
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White Papers
Dynamic MIPS Rate Stabilization in Out-of-Order Processors
January 1, 2009, 12:00am PST
Today's micro-processor cores reach high performance levels not only by their high clock rate but also by the concurrent execution of a large number of instructions. Because of the relationship...
Provided by University of Southern California
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White Papers
Static Replication Strategies for Content Availability in Vehicular Ad-Hoc Networks
October 28, 2008, 12:00am PDT
This paper investigates replication strategies for reducing latency to desired content in a vehicular peer-to-peer network. The authors provide a general constrained optimization formulation for...
Provided by University of Southern California
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White Papers
Algorithms for Fast Aggregated Convergecast in Sensor Networks
September 5, 2008, 12:00am PDT
Fast and periodic collection of aggregated data is of considerable interest for mission-critical and continuous monitoring applications in sensor networks. In the many-to-one communication...
Provided by University of Southern California
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White Papers
Investigating Backpressure Based Rate Control Protocols for Wireless Sensor Networks
September 5, 2008, 12:00am PDT
From a theoretical standpoint, backpressure-based techniques present elegant cross-layer rate control solutions that use only local queue information. It is only recently that attempts are being...
Provided by University of Southern California
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White Papers
SlackSim: A Platform for Parallel Simulations of CMPs on CMPs
August 1, 2008, 12:00am PDT
The fast simulation of Chip Multi-Processors (CMPs) presents a critical challenge to the architecture research community as both industry and academia shift their research focus to multi-core...
Provided by University of Southern California
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White Papers
BitTorrent: An Extensible Heterogeneous Model
January 26, 2009, 12:00am PST
Peer-To-Peer (P2P) systems in general, and BitTorrent (BT) specifically, have been of significant interest to researchers and Internet users alike. Existing models of BT abstract away certain...
Provided by University of Southern California
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White Papers
A Discreet, Fault-Tolerant, and Scalable Software Architectural Style for Internet-Sized Networks
September 16, 2007, 12:00am PDT
Large networks, such as the Internet, pose an ideal medium for solving computationally intensive problems, such as NP-complete problems, yet no well-scaling architecture for Internet-sized systems...
Provided by University of Southern California
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White Papers
Comments on "Broadcast Channels With Arbitrarily Correlated Sources"
September 13, 2009, 12:00am PDT
The Marton-Gelfand-Pinsker inner bound on the capacity region of broadcast channels was extended by Han-Costa to include arbitrarily correlated sources where the capacity region is replaced by an...
Provided by University of Southern California
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White Papers
ROS: An Open-Source Robot Operating System
March 7, 2009, 12:00am PST
This paper gives an overview of ROS, an open-source robot operating system. ROS is not an operating system in the traditional sense of process management and scheduling; rather, it provides a...
Provided by University of Southern California
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White Papers
A SRAM-Based Architecture for Trie-Based IP Lookup Using FPGA
May 11, 2008, 12:00am PDT
Internet Protocol (IP) lookup in routers can be implemented by some form of tree traversal. Pipelining can dramatically improve the search throughput. However, it results in unbalanced memory...
Provided by University of Southern California
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White Papers
Communication Models for Algorithm Design in Wireless Sensor Networks
January 1, 2012, 12:00am PST
With continuing advancements in sensor node design and increasingly complex applications for Wireless Sensor Networks (WSNs), formal communication models are needed for either fair comparison...
Provided by University of Southern California
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White Papers
Delay-Constrained Energy-Efficient Scheduling Over a Multihop Link
April 12, 2007, 12:00am PDT
This paper focuses on delay-constrained energy-efficient packet transmission over a static multi-hop link. Optimal offline scheduling (vis-a-vis total transmission energy), assuming information of...
Provided by University of Southern California
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White Papers
Packet Dropping Algorithms for Energy Savings
October 2, 2006, 12:00am PDT
This paper investigates proactive packet dropping to achieve transmission energy savings. Such a scheme can be employed for applications which can tolerate a small fraction of packet losses. For a...
Provided by University of Southern California
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White Papers
Power Allocation in Linear and Tree WSN Topologies
February 2, 2010, 12:00am PST
Estimation at a fusion center in a wireless sensor network is examined. The problem at hand is to perform power allocation subject to a total network power constraint while minimizing the...
Provided by University of Southern California
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White Papers
Low-Complexity Approaches to Spectrum Opportunity Tracking
January 1, 2011, 12:00am PST
The authors consider opportunistic spectrum access under design constraints imposed at both node and link levels. First, hardware and energy limitations at node level may prevent a secondary user...
Provided by University of Southern California
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