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West Virginia University
(46 results)-
Whitepapers
Constellation Shaping for Communication Channels With Quantized Outputs
March 2, 2011, 12:00am PST
This paper considers a technique to maximize the mutual information between the channel input and channel output of an AWGN channel when the input is chosen from a fixed signal constellation and...
Provided by West Virginia University
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Whitepapers
Noncoherent Physical-Layer Network Coding Using Binary CPFSK Modulation
August 14, 2009, 12:00am PDT
Physical-layer network coding is a high-throughput technique for communicating over the two-way relay channel, which consists of two terminals that communicate exclusively via an intermediate...
Provided by West Virginia University
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Whitepapers
The Information-Outage Probability of Finite-Length Codes Over AWGN Channels
February 22, 2008, 12:00am PST
The performance of random error control codes approaches the Shannon capacity limit as the code length goes to infinity. When the code length is finite, then the code will be unable to achieve...
Provided by West Virginia University
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Whitepapers
A Genetic Algorithm for Designing Constellations With Low Error Floors
February 22, 2008, 12:00am PST
The error floor of Bit-Interleaved Coded Modulation with Iterative Decoding (BICM-ID) can be minimized for a particular constellation by maximizing the harmonic mean of the squared-Euclidian...
Provided by West Virginia University
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Whitepapers
The BICM Capacity of Coherent Continuous-Phase Frequency Shift Keying
July 13, 2007, 12:00am PDT
Continuous-Phase Frequency Shift Keying (CPFSK) is an attractive modulation choice due its small spectral side-lobes and constant envelope. In order to improve the energy efficiency, CPFSK can be...
Provided by West Virginia University
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Whitepapers
Fairness and Stability Analysis of Congestion Control Schemes in Vehicular Ad-Hoc Networks
March 30, 2012, 12:00am PDT
Cooperative Vehicle Safety (CVS) systems operate based on broadcast of vehicle position and safety information to neighboring cars. The communication medium of CVS is a vehicular ad-hoc network....
Provided by West Virginia University
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White Papers
Multiclass mõ-Granular Soft Support Vector Machine: A Case Study in Dynamic Classifier Selection for Multispectral Face Recognition
August 8, 2008, 12:00am PDT
This paper presents a novel formulation of multiclass support vector machine by integrating the concepts of soft labels and granular computing. The proposed multiclass mõ-granular soft support...
Provided by West Virginia University
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White Papers
A Coding Scheme for Indexing Multimodal Biometric Databases
June 1, 2009, 12:00am PDT
In biometric identification systems, the identity associated with the input data is determined by comparing it against every entry in the database. This exhaustive matching process increases the...
Provided by West Virginia University
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White Papers
Multibiometric Systems: Overview, Case Studies and Open Issues
March 5, 2009, 12:00am PST
Information fusion refers to the reconciliation of evidence presented by multiple sources of information in order to generate a decision. In the context of biometrics, evidence reconciliation...
Provided by West Virginia University
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White Papers
Exploiting the "Doddington Zoo" Effect in Biometric Fusion
September 1, 2009, 12:00am PDT
Recent research in biometrics has suggested the existence of the "Biometric Menagerie" in which weak users contribute disproportionately to the error rate (FAR and FRR) of a biometric system. The...
Provided by West Virginia University
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White Papers
Online Learning in Biometrics: A Case Study in Face Classifier Update
September 1, 2009, 12:00am PDT
In large scale applications, hundreds of new subjects may be regularly enrolled in a biometric system. To account for the variations in data distribution caused by these new enrollments, biometric...
Provided by West Virginia University
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White Papers
A New Biometric Modality Based on Conjunctival Vasculature
October 3, 2009, 12:00am PDT
A new biometric indicator based on the patterns of conjunctival vasculature is proposed. Conjunctival vessels can be observed on the visible part of the sclera that is exposed to the outside...
Provided by West Virginia University
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