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CORR
2006
Springer
108views Education» more  CORR 2006»
13 years 9 months ago
Mutual Information Games in Multi-user Channels with Correlated Jamming
We investigate the behavior of two users and one jammer in an additive white Gaussian noise (AWGN) channel with and without fading when they participate in a noncooperative zero-su...
Shabnam Shafiee, Sennur Ulukus
IH
2001
Springer
14 years 2 months ago
Robust Covert Communication over a Public Audio Channel Using Spread Spectrum
We present a set of watermarking techniques for effective covert communication over an audio signal carrier. Watermark robustness is enabled using: (i) redundant spread-spectrum fo...
Darko Kirovski, Henrique S. Malvar
ICASSP
2008
IEEE
14 years 4 months ago
Maximum likelihood approach to speech enhancement for noisy reverberant signals
This paper proposes a speech enhancement method for signals contaminated by room reverberation and additive background noise. The following conditions are assumed: (1) The spectra...
Takuya Yoshioka, Tomohiro Nakatani, Takafumi Hikic...
ICASSP
2011
IEEE
13 years 1 months ago
Compensation of extrinsic variability in speaker verification systems on simulated Skype and HF channel data
In this work we focus on speaker verification on channels of varying quality, namely Skype and high frequency (HF) radio. In our setup, we assume to have telephone recordings of ...
Korbinian Riedhammer, Tobias Bocklet, Elmar Nö...
ICASSP
2009
IEEE
14 years 4 months ago
Game theory for precoding in a multi-user system: Bargaining for overall benefits
A precoding strategy for multi-user spectrum sharing over an interference channel is proposed and analyzed from a game-theoretic perspective. The proposed strategy is based on fi...
Jie Gao, Sergiy A. Vorobyov, Hai Jiang