Sciweavers

TSP
2010
12 years 10 months ago
Improved dual decomposition based optimization for DSL dynamic spectrum management
Dynamic spectrum management (DSM) has been recognized as a key technology to significantly improve the performance of digital subscriber line (DSL) broadband access networks. The b...
Paschalis Tsiaflakis, Ion Necoara, Johan A. K. Suy...
TSP
2010
12 years 10 months ago
Dynamic multichannel access with imperfect channel state detection
A restless multi-armed bandit problem that arises in multichannel opportunistic communications is considered, where channels are modeled as independent and identical Gilbert
Keqin Liu, Qing Zhao, Bhaskar Krishnamachari
TSP
2010
12 years 10 months ago
Estimation of ambiguity functions with limited spread
This paper proposes a new estimation procedure for the ambiguity function of a non-stationary time series. The stochastic properties of the empirical ambiguity function calculated...
Heidi Hindberg, Sofia C. Olhede
TSP
2010
12 years 10 months ago
Timing estimation and resynchronization for amplify-and- forward communication systems
Abstract--This paper proposes a general framework to effectively estimate the unknown timing and channel parameters, as well as design efficient timing resynchronization algorithms...
Xiao Li, Chengwen Xing, Yik-Chung Wu, S. C. Chan
TSP
2010
12 years 10 months ago
MIMO transceivers with decision feedback and bit loading: theory and optimization
This paper considers MIMO transceivers with linear precoders and decision feedback equalizers (DFEs), with bit allocation at the transmitter. Zero-forcing (ZF) is assumed. Consider...
Ching-Chih Weng, Chun-Yang Chen, P. P. Vaidyanatha...
TSP
2010
12 years 10 months ago
Improving wireless physical layer security via cooperating relays
Physical (PHY) layer security approaches for wireless communications can prevent eavesdropping without upper layer data encryption. However, they are hampered by wireless channel c...
Lun Dong, Zhu Han, Athina P. Petropulu, H. Vincent...
TSP
2010
12 years 10 months ago
Selection policy-induced reduction mappings for Boolean networks
Developing computational models paves the way to understanding, predicting, and influencing the long-term behavior of genomic regulatory systems. However, several major challenges ...
Ivan Ivanov, Plamen Simeonov, Noushin Ghaffari, Xi...
TSP
2010
12 years 10 months ago
Tensor algebra and multidimensional harmonic retrieval in signal processing for MIMO radar
Detection and estimation problems in multiple-input multiple-output (MIMO) radar have recently drawn considerable interest in the signal processing community. Radar has long been a...
Dimitri Nion, Nicholas D. Sidiropoulos