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University of Pennsylvania
(265 results)-
White Papers
Trace-Driven Analysis of an Internet-Scale Cloud Computing Platform
May 6, 2008, 12:00am PDT
In recent years, cloud computing have become a popular computing paradigm, where computation is moved away from personal computers or an individual application server to a "Cloud" of computers in...
Provided by University of Pennsylvania
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White Papers
Maximum Damage Malware Attack in Mobile Wireless Networks
August 1, 2009, 12:00am PDT
Malware attacks constitute a serious security risk that threatens to slow down the large scale proliferation of wireless applications. As a first step towards thwarting this security threat, one...
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White Papers
The Social Life of Wireless Urban Spaces: Internet Use, Social Networks, and the Public Realm
April 20, 2009, 12:00am PDT
Offlate changes to the structure of people's social networks, the mass media, and urban public spaces may represent a confluence of social trends that constrain exposure to diverse issues, ideas,...
Provided by University of Pennsylvania
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White Papers
Changes in Bonus Contracts in the Post-Sarbanes-Oxley Era
November 20, 2007, 12:00am PST
This paper examine whether the relation between earnings and bonuses changes after Sarbanes-Oxley. Theory predicts that, as the financial reporting system reduces the discretion allowed managers,...
Provided by University of Pennsylvania
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White Papers
Seventh Amendment: Sarbanes-Oxley Act Whistleblower Claims and Jury Trials
July 1, 2009, 12:00am PDT
In the early part of the twenty-first century, corporate fraud and greed led to the downfall of two major multinational corporations, Enron and WorldCom. Corporate scandals caught the attention of...
Provided by University of Pennsylvania
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White Papers
Dynamic Malware Attack in Energy-Constrained Mobile Wireless Networks
January 31, 2010, 12:00am PST
Large scale proliferation of wireless technologies are dependent on developing reliable security measures against outbreaks of malware. The first step toward this goal is investigating the...
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White Papers
Optimal Malware Attack and Defense in Mobile Wireless Networks
January 22, 2010, 12:00am PST
Malicious self-replicating codes, known as malware, pose substantial threat to the wireless computing infrastructure. Malware can be used to launch attacks that vary from the less intrusive...
Provided by University of Pennsylvania
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White Papers
Optimal Quarantining of Wireless Malware Through Power Control
February 10, 2009, 12:00am PST
The topic of malware propagation in mobile wireless networks is gaining momentum among the research community, as actual vulnerabilities are revealed through recent outbreaks of worms. The paper...
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White Papers
On the Feasibility and Efficacy of Protection Routing in IP Networks
December 18, 2009, 12:00am PST
The protection routing procedures in IP networks has become a matter of great research and improvement owing to the growing demands of the resources available on the internet. Some of the major...
Provided by University of Pennsylvania
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White Papers
Connecting In Chaos: Persuasion And Negotiation For Turbulent Times
September 1, 2008, 12:00am PDT
After JPMorgan Chase took over Bear Stearns in March, Morgan CEO Jamie Diamond made a trip uptown to talk to the top executives of the acquired firm. The executives had just been through one of...
Provided by University of Pennsylvania (Wharton)
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White Papers
The New M&A: Managing Acquisitions As Alliances
February 1, 2010, 12:00am PST
With growing frequency, cross-border mergers and acquisitions are making the news, offering plentiful examples of success (Ûlker and Godiva) and failure (Daimler and Chrysler). What many of the...
Provided by University of Pennsylvania (Wharton)
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White Papers
When Are Emerging Markets No Longer 'Emerging'?
April 10, 2009, 12:00am PDT
Call them the darlings of the global market - the economies of India, China and Brazil have exploded in recent years, igniting both business opportunities and challenges. These countries are...
Provided by University of Pennsylvania (Wharton)
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White Papers
Holding On To your Place At The Top: Maintaining Competitive Advantage
January 1, 2010, 12:00am PST
When Progressive Insurance began providing quotes for its competitors' policies to potential customers, many in the industry scoffed. The move seemed counterintuitive for a company driven to...
Provided by University of Pennsylvania (Wharton)
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White Papers
Constructive Confrontation: When Conflict Enhances Collaboration
March 1, 2008, 12:00am PST
Richard Shell, academic co-director at Wharton, leads two popular programs that address different aspects of collaboration and confrontation. Strategic Persuasion Workshop: The Art and Science of...
Provided by University of Pennsylvania (Wharton)
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White Papers
Double Down: Stepping Up Investment In Innovation
March 1, 2009, 12:00am PST
Despite the economic downturn, now is not the time to save money by spending less on innovation. "Innovation is a tough sell in a recession," says Wharton Professor of Marketing George S. Day,...
Provided by University of Pennsylvania (Wharton)
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White Papers
Negotiating From A Position Of Confidence
September 1, 2009, 12:00am PDT
"Where else will you make money in this turbulent environment if not through negotiation?" asks Richard Shell, author of Bargaining for Advantage and The Art of Woo [Winning Others Over]. "Whether...
Provided by University of Pennsylvania (Wharton)
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White Papers
To Change Others, Change Yourself
August 1, 2009, 12:00am PDT
"You can become anything you want to be. ""This is the most important idea in the history of the world,"" Chuck Dwyer, academic co-director of Wharton's Building Relationships That Work program,...
Provided by University of Pennsylvania (Wharton)
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White Papers
The Power Of Teams: Dividing The Tasks And Multiplying The Successes
September 1, 2009, 12:00am PDT
Two years ago, Chris Warner was nearing the summit of K2 in Pakistan. Ahead of his team was a group of Korean climbers, led by the highly experienced Nima Nurbu Sherpa, who had successfully scaled...
Provided by University of Pennsylvania (Wharton)
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White Papers
Confidence Is An Inside Job
September 1, 2009, 12:00am PDT
The Coast Guard recently played host to Authentic Leadership Institute (ALI) President Nick Craig, who spent a week on the Coast Guard's USCGC Eagle. A 300-foot tall ship, the Eagle has 56 crew...
Provided by University of Pennsylvania (Wharton)
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White Papers
A Dose Of Healthy Paranoia Brings Sound Financial Rewards
December 1, 2009, 12:00am PST
"Amazon CEO Jeff Bezos, commenting on his company's recent better-than-expected earnings, noted that the company's eReader, Kindle, is their top-selling item by both unit sales and dollars. During...
Provided by University of Pennsylvania (Wharton)
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White Papers
A Time To Harvest: This Could Be The Time To Cut R&D And Marketing
March 1, 2009, 12:00am PST
"At the M Planet Conference in late January, Anne Mulcahy, Chairman and CEO of Xerox Corporation, remarked that this is the time to invest in R&D. Wharton Professor of Marketing David Reibstein,...
Provided by University of Pennsylvania (Wharton)
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White Papers
Future-Proofing Your Strategy: The Gorilla Before Your Eyes
February 1, 2008, 12:00am PST
The sub-prime mortgage meltdown and Mattel's toy recall remind us of the challenge of developing and implementing strategy in a world of high uncertainty. "There is a growing need for "peripheral...
Provided by University of Pennsylvania (Wharton)
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White Papers
Visionary Leadership: Courageous Behavior Yields Big Payoffs
June 1, 2009, 12:00am PDT
When Nick Craig works with executives on leadership, he begins with identifying their "True North." Craig defines this concept in terms of knowing yourself, your purpose, and your vision....
Provided by University of Pennsylvania (Wharton)
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White Papers
Ultimate Leadership: Winning Execution Strategies For Your Situation
May 21, 2008, 12:00am PDT
There is no single style of leadership that works. But there are basic principles of leadership that all effective leaders apply regardless of their personal style of leadership. This paper is...
Provided by University of Pennsylvania (Wharton)
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White Papers
Earning The Right To Lead
June 1, 2009, 12:00am PDT
"I learned from my time in the Army that leadership begins with the individual," says Todd Henshaw, retired U.S Army Lt. Colonel. Today's environment calls for visionary leaders who have a firm...
Provided by University of Pennsylvania (Wharton)
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White Papers
Wharton on... Change Management
March 12, 2010, 12:00am PST
Effecting change management successfully is one of the most important and most difficult competencies for organizations to develop. While the lion's share of change management efforts fail - or...
Provided by University of Pennsylvania (Wharton)
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White Papers
Rowing As One: Crewing Offers Executives Lessons In Leadership And Teamwork
December 1, 2007, 12:00am PST
On a beautiful fall day, teams of executives from Wharton's Advanced Management Program took to the Schuylkill River in Philadelphia in eight-seat crew shells. Ostensibly, the 56 managers from...
Provided by University of Pennsylvania (Wharton)
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White Papers
Epiphany On The Ice: Critical Lessons In Creating And Leading Teams
January 1, 2008, 12:00am PST
Wharton Professor Mike Useem has studied, written, and taught about leadership and teamwork throughout his career, but it was an epiphany in the midst of a blinding snowstorm that drove home one...
Provided by University of Pennsylvania (Wharton)
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White Papers
Collaborating To Compete: The Rise Of "Coopetition" And Strategic Alliances
March 1, 2008, 12:00am PST
In a world of high uncertainty and greater interdependence, companies often cooperate to compete. Rivals may go head-to-head in certain areas, and declare a truce in others. With the rising...
Provided by University of Pennsylvania (Wharton)
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White Papers
Strategies For Ambiguity: Finding Opportunities In Uncertainty
May 1, 2008, 12:00am PDT
Paul Freeman, CEO of a private asbestos removal company in Denver, Colorado, had built a very successful business. Then insurance companies decided they could no long offer liability insurance for...
Provided by University of Pennsylvania (Wharton)
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White Papers
Driving Change That Works
October 1, 2009, 12:00am PDT
A highly successful international firm that prided itself on a strong commitment to its employees began trimming its staff at the first signs of the downturn. One senior manager convened a meeting...
Provided by University of Pennsylvania (Wharton)
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White Papers
Leading Virtually: Making Virtual Global Teams Work
February 1, 2009, 12:00am PST
Since they were pioneered by technology firms in the 1990s, virtual global teams have been growing rapidly. "Virtual work is ubiquitous in the knowledge economy," says Ana Reyes, a consultant and...
Provided by University of Pennsylvania (Wharton)
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White Papers
A Test Of Leadership: Keeping Your Head In Stressful Times
August 1, 2009, 12:00am PDT
Calmness can be a competitive advantage. "In the current turbulent times, clients, suppliers, employees, and investors are going to be pretty anxious," says Charles Dwyer, academic director of...
Provided by University of Pennsylvania (Wharton)
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White Papers
Marketing Against The Tide: Go Where Rivals Fear To Tread
October 1, 2008, 12:00am PDT
Business 2.0 magazine, founded in 1989, rode the "New economy" to extraordinary success. In its second year of publication, it sold 2,000 pages of advertising, perhaps a record for a monthly...
Provided by University of Pennsylvania (Wharton)
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White Papers
Executive Learning Solutions For Organizations In The Financial Services Industry
January 1, 2010, 12:00am PST
Wharton's design process is focused and expedited by a reality-based grasp of how the industry works. Programs customized for your organization that tie your specific business needs to the...
Provided by University of Pennsylvania (Wharton)
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White Papers
Organic Growth: Rethinking Segments To Find Opportunities
February 1, 2009, 12:00am PST
In a belt-tightening time, premium-priced organic foods may seem like a losing proposition. But as Wharton Professor Ian MacMillan walked through the aisles of a local Whole Foods supermarket...
Provided by University of Pennsylvania (Wharton)
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White Papers
Wharton On Marketing: Approaches For Retailers - Volume 2
February 13, 2009, 12:00am PST
With Internet sales rising and virtual storefronts expanding into consumers' homes, how should retailers plan for - and promote - online shopping? And, are the ground rules the same as...
Provided by University of Pennsylvania (Wharton)
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White Papers
Wharton On Career Management: Getting In, Getting Ahead, And Getting Out - Gracefully
November 24, 2008, 12:00am PST
A generation ago, employees never had to worry much about managing their careers; their companies did it for them. As anyone knows who has been in the workforce for the last decade, times have...
Provided by University of Pennsylvania (Wharton)
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White Papers
Wharton on ... Women In Leadership
April 10, 2009, 12:00am PDT
While the glass ceiling is still a part of the corporate architecture for many women, others have met with great success, rising to positions of power within their industries. Most would admit...
Provided by University of Pennsylvania (Wharton)
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White Papers
Wharton On Career Management In Turbulent Times
April 10, 2009, 12:00am PDT
Navigating a career path - not to mention a particular job - can sometimes seem like shooting the rapids in a kayak. Change inside an organization, within an industry and in the overall economy...
Provided by University of Pennsylvania (Wharton)
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Whitepapers
On the Adoption Paths and Competition of Network Applications
April 29, 2010, 12:00am PDT
Much of the growth of the Internet has been driven by new network technologies and applications. The successful adoption of theses applications greatly depend on the underlying diffusion process...
Provided by University of Pennsylvania
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Whitepapers
TROPIC: Transactional Resource Orchestration Platform in the Cloud
May 14, 2012, 12:00am PDT
Realizing Infrastructure-as-a-Service (IaaS) cloud requires a control platform to orchestrate cloud resource provisioning, configuration, and decommissioning across a distributed set of diverse...
Provided by University of Pennsylvania
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White Papers
Irrelevance, Heterogeneous Equality, and Call-by-Value Dependent Type Systems
February 7, 2012, 12:00am PST
The authors present a full-spectrum dependently typed core language which includes both non-termination and computational irrelevance (a.k.a. erasure), a combination which has not been studied...
Provided by University of Pennsylvania
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White Papers
Step-Indexed Normalization for a Language With General Recursion
December 16, 2011, 12:00am PST
The TRELLYS project has produced several designs for practical dependently typed languages. These languages are broken into two fragments - a logical fragment where every term normalizes and which...
Provided by University of Pennsylvania
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White Papers
Rehoming Edge Links for Better Traffic Engineering
March 13, 2012, 12:00am PDT
Traditional traffic engineering adapts the routing of traffic within the network to maximize performance. The authors propose a new approach that also adaptively changes where traffic enters and...
Provided by University of Pennsylvania
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White Papers
Virtual Switching Without a Hypervisor for a More Secure Cloud
January 23, 2012, 12:00am PST
Cloud computing leverages virtualization to offer resources on demand to multiple "Tenants". However, sharing the server and network infrastructure creates new vulnerabilities, where one tenant...
Provided by University of Pennsylvania
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White Papers
Cologne: A Declarative Distributed Constraint Optimization Platform
March 24, 2012, 12:00am PDT
This paper presents Cologne, a declarative optimization platform that enables Constraint Optimization Problems (COPs) to be declaratively specified and incrementally executed in distributed...
Provided by University of Pennsylvania
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White Papers
On the Security Cost of Interval Multicast
May 1, 2010, 12:00am PDT
Interval multicast was defined as to send a message to a subset of a group, rather than all of the members in the group, which is important in battle fields and other applications. A Key-Tree...
Provided by University of Pennsylvania
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White Papers
Generic Coverage Verification Without Location Information Using Dimension Reduction
February 5, 2009, 12:00am PST
Wireless Sensor Networks (WSNs) have recently emerged as a key sensing technology with diverse civilian and military applications. In these networks, a large number of small sensors or nodes...
Provided by University of Pennsylvania
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White Papers
Differential Privacy Under Fire
June 7, 2011, 12:00am PDT
Anonymizing private data before release is not enough to reliably protect privacy, as Netflix and AOL have learned to their cost. Recent research on differential privacy opens a way to obtain...
Provided by University of Pennsylvania
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White Papers
Spectrum Pricing Games With Spatial Reuse in Cognitive Radio Networks
January 15, 2011, 12:00am PST
In Cognitive Radio Networks (CRN), there are multiple primary and secondary users in a region, and primaries can lease out their unused bandwidth to secondaries in exchange for a fee. This gives...
Provided by University of Pennsylvania
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White Papers
Expressiveness of Streaming String Transducers
October 13, 2010, 12:00am PDT
Streaming string transducers define (partial) functions from input strings to output strings. A streaming string transducer makes a single pass through the input string and uses a finite set of...
Provided by University of Pennsylvania
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White Papers
Algorithmic Analysis of Array-Accessing Programs
June 21, 2009, 12:00am PDT
For programs whose data variables range over boolean or nite domains, program verification is decidable, and this forms the basis of recent tools for software model checking. In this paper, the...
Provided by University of Pennsylvania
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White Papers
Languages of Nested Trees
January 1, 2011, 12:00am PST
The authors study languages of nested trees-structures obtained by augmenting trees with sets of nested jump-edges. These graphs can naturally model branching behaviors of push-down programs, so...
Provided by University of Pennsylvania
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White Papers
Model Checking of Linearizability of Concurrent List Implementations
April 21, 2010, 12:00am PDT
Concurrent data structures with fine-grained synchronization are notoriously difficult to implement correctly. The difficulty of reasoning about these implementations does not stem from the number...
Provided by University of Pennsylvania
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White Papers
Updatable Security Views
April 29, 2009, 12:00am PDT
Security views are a flexible and effective mechanism for controlling access to confidential information. Rather than allowing untrusted users to access source data directly, they are instead...
Provided by University of Pennsylvania
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White Papers
Arrows for Secure Information Flow
December 18, 2009, 12:00am PST
This paper presents an embedded security sub-language for enforcing information-flow policies in the standard Haskell programming language. The sub-language provides useful information-flow...
Provided by University of Pennsylvania
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White Papers
Portfolio Optimization in Secondary Spectrum Markets
March 28, 2011, 12:00am PDT
In this paper, the authors address the Spectrum Portfolio Optimization (SPO) question in the context of secondary spectrum markets, where bandwidth (spectrum access rights) can be bought in the...
Provided by University of Pennsylvania
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White Papers
Dynamic Contract Trading in Spectrum Markets
October 1, 2010, 12:00am PDT
The authors address the question of optimal trading of bandwidth (service) contracts in wireless spectrum markets, for the primary spectrum providers. They propose a structured spectrum market and...
Provided by University of Pennsylvania
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White Papers
Dispatch Then Stop: Optimal Dissemination of Security Patches in Mobile Wireless Networks
September 12, 2010, 12:00am PDT
The security threat posed by malware in mobile wireless networks can be countered through immunization using security patches. The distribution of patches however consumes bandwidth which is...
Provided by University of Pennsylvania
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White Papers
Queue Length Stability in Trees Under Slowly Convergent Traffic Using Sequential Maximal Scheduling
March 30, 2008, 12:00am PDT
Scheduling for maximum throughput is a key operational goal in any wireless network. Scheduling of links must be done such that no two "Interfering" links are scheduled at the same time. Under...
Provided by University of Pennsylvania
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White Papers
Economy of Spectrum Access in Time Varying Multi-Channel Networks
December 19, 2009, 12:00am PST
The authors consider a wireless network consisting of two classes of potentially mobile users: Primary users and secondary users. Primary users license frequency channels and transmit in their...
Provided by University of Pennsylvania
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White Papers
Spectrum Auction Framework for Access Allocation in Cognitive Radio Networks
May 31, 2010, 12:00am PDT
With the proliferation of different wireless network technologies like cellular networks, Wireless Local Area Networks, Wireless Meteropolitan Area networks etc., demand for radio spectrum is...
Provided by University of Pennsylvania
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White Papers
Lifetime and Coverage Guarantees Through Distributed Coordinate-Free Sensor Activation
September 10, 2010, 12:00am PDT
In wireless sensor networks, a large number of sensors perform distributed sensing of a target field. A sensor cover is a subset of the set of all sensors that covers the target field. The...
Provided by University of Pennsylvania
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White Papers
Optimal Routing and Scheduling in Multihop Wireless Renewable Energy Networks
February 1, 2011, 12:00am PST
In this paper, the authors design routing and scheduling policies that optimize network throughput in energy-constrained wireless ad-hoc networks where nodes are powered by renewable energy...
Provided by University of Pennsylvania
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White Papers
Anti-Jamming for Embedded Wireless Networks
October 23, 2008, 12:00am PDT
Resilience to electromagnetic jamming and its avoidance are difficult problems. It is often both hard to distinguish malicious jamming from congestion in the broadcast regime and a challenge to...
Provided by University of Pennsylvania
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White Papers
WisperNet: Anti-Jamming for Wireless Sensor Networks
August 28, 2008, 12:00am PDT
Resilience to electromagnetic jamming and its avoidance are difficult problems. It is often both hard to distinguish malicious jamming from congestion in the broadcast regime and a challenge to...
Provided by University of Pennsylvania
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White Papers
Stochastic Soft Backpressure Algorithms for Routing and Scheduling in Wireless Ad-Hoc Networks
August 6, 2009, 12:00am PDT
The authors develop a generalization of the BackPressure (BP) algorithm to find routes and schedules in wireless ad-hoc networks. Different from BP that schedules links that maximize queue...
Provided by University of Pennsylvania
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White Papers
Declarative Toolkit for Rapid Network Protocol Simulation and Experimentation
June 15, 2009, 12:00am PDT
The authors propose the demonstration of the RapidNet toolkit for rapid network protocol simulation, implementation and experimentation. RapidNet utilizes declarative networking, a declarative,...
Provided by University of Pennsylvania
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White Papers
A Theorem Proving Approach Towards Declarative Networking
July 5, 2009, 12:00am PDT
The authors present the DRIVER system for designing, analyzing and implementing network protocols. DRIVER leverages declarative networking, a recent innovation that enables network protocols to be...
Provided by University of Pennsylvania
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White Papers
Formally Verifiable Networking
February 7, 2011, 12:00am PST
This paper proposes Formally Verifiable Networking (FVN), a novel approach towards unifying the design, specification, implementation, and verification of networking protocols within a logic-based...
Provided by University of Pennsylvania
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White Papers
An Operational Semantics for Network Datalog
February 7, 2011, 12:00am PST
Network Datalog (NDlog) is a recursive query language that extends Datalog by allowing programs to be distributed in a network. In the authors' initial efforts to formally specify NDlog's...
Provided by University of Pennsylvania
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White Papers
An Open-Source and Declarative Approach Towards Teaching Large-Scale Networked Systems Programming
March 10, 2011, 12:00am PST
This paper describes the authors' experiences at the University of Pennsylvania in developing course projects for a large advanced undergraduate and first year graduate course in networked...
Provided by University of Pennsylvania
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White Papers
Partial Specification of Routing Configurations
September 2, 2011, 12:00am PDT
The formal analysis of routing protocol configurations for safety properties is well established. Methods exist to identify potential protocol oscillations by analysis of the network topology and...
Provided by University of Pennsylvania
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White Papers
MOSAIC: Declarative Platform for Dynamic Overlay Composition
May 27, 2011, 12:00am PDT
Overlay networks create new networking services using nodes that communicate using pre-existing networks. They are often optimized for specific applications and targeted at niche vertical domains,...
Provided by University of Pennsylvania
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White Papers
Recursive Computation of Regions and Connectivity in Networks
October 30, 2008, 12:00am PDT
In recent years, the data management community has begun to consider situations in which data access is closely tied to network routing and distributed acquisition: examples include, sensor...
Provided by University of Pennsylvania
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White Papers
Declarative Policy-Based Adaptive Mobile Ad Hoc Networking
August 18, 2011, 12:00am PDT
This paper presents DAWN, a declarative platform that creates highly adaptive policy-based MANET protocols. DAWN leverages declarative networking techniques to achieve extensible routing and...
Provided by University of Pennsylvania
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White Papers
Secure Network Provenance
September 1, 2011, 12:00am PDT
This paper introduces Secure Network Provenance (SNP), a novel technique that enables networked systems to explain to their operators why they are in a certain state - e.g., why a suspicious...
Provided by University of Pennsylvania
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White Papers
Conflicts In Bankruptcy And The Sequence Of Debt Issues
June 1, 2009, 12:00am PDT
The authors present a model that shows how interactions between creditor groups in bankruptcy can affect the debt issuance decisions of firms. In particular, they suggest that deviations from APR...
Provided by University of Pennsylvania
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White Papers
Towards Secure Cloud Data Management
February 23, 2010, 12:00am PST
Cloud computing is a popular computing paradigm in which computation is moved away from a personal computer or an individual application server to a "Cloud" of computers in the network. Cloud...
Provided by University of Pennsylvania
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