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CISS
2008
IEEE
8 years 3 months ago
Detection of anomalous meetings in a social network
Abstract-- When monitoring interactions within a social network, meetings or contacts between different members of the network are recorded. This paper addresses the problem of usi...
Jorge Silva, Rebecca Willett
CISS
2008
IEEE
8 years 3 months ago
Sequential placement of reference levels in a level-crossing analog-to-digital converter
Level-crossing analog-to-digital converters (LC ADCs) have been considered in the literature and have been shown to efficiently sample certain classes of signals. One important as...
Karen M. Guan, Andrew C. Singer
CISS
2008
IEEE
8 years 3 months ago
Measuring interference in overcomplete signal representations
Currently, there is no quantitative way to ascertain how an overcomplete signal representation describes a signal and its features using terms drawn from a dictionary. Though spars...
Bob L. Sturm, John J. Shynk, Laurent Daudet
CISS
2008
IEEE
8 years 5 months ago
Network tomography based on additive metrics
Inference of the network structure (e.g., routing topology) and dynamics (e.g., traffic matrices, link performance) is an important component in many network design and management ...
Jian Ni, Sekhar Tatikonda
CISS
2008
IEEE
8 years 5 months ago
Portfolio diversification using subspace factorizations
Abstract-- Successful investment management relies on allocating assets so as to beat the stock market. Asset classes are affected by different market dynamics or latent trends. Th...
Ruairi de Frein, Konstantinos Drakakis, Scott Rick...
CISS
2008
IEEE
8 years 5 months ago
An efficient adaptive distributed space time coding scheme for cooperative relaying
A non-regenerative dual-hop wireless system based on distributed Alamouti space-time coding is considered. It is assumed that each relay retransmits an appropriately scaled space-t...
Jamshid Abouei, Hossein Bagheri, Amir K. Khandani
CISS
2008
IEEE
8 years 5 months ago
Cross-layer multicommodity capacity expansion on ad hoc wireless networks of cognitive radios
Cognitive radios permit dynamic control of physical layer resources such as transmission power and constellation size; these degrees of freedom can be employed to achieve significa...
Alex Fridman, Steven Weber, Kapil R. Dandekar, Mos...
CISS
2008
IEEE
8 years 5 months ago
On the frame error rate of transmission schemes on quasi-static fading channels
It is known that the frame error rate of turbo codes on quasi-static fading channels can be accurately approximated using the convergence threshold of the corresponding iterative d...
Ioannis Chatzigeorgiou, Ian J. Wassell, Rolando A....
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