JCM
2007
13 years 8 months ago
2007
—Modulation techniques have attracted increasing attention in optical wireless communications. Basic schemes such as on off keying (OOK), pulse amplitude modulation (PAM) and pul...
JSAC
2006
13 years 8 months ago
2006
Abstract--A conventional transmitted reference (TR) modulation scheme is an effective means to combat severe multipath distortion in an ultra-wideband (UWB) system, significantly r...
JCNS
2008
13 years 8 months ago
2008
Information theoretical approaches to sensory processing in electric fish have focused on the encoding of amplitude modulations in a single sensory pathway in the South American gy...
CORR
2007
Springer
13 years 8 months ago
2007
Springer
— 1 In this paper, the error performance of onoff frequency shift keying (OOFSK) modulation over fading channels is analyzed when the receiver is equipped with multiple antennas....
CORR
2008
Springer
13 years 8 months ago
2008
Springer
A coded modulation system is considered in which nonbinary coded symbols are mapped directly to nonbinary modulation signals. It is proved that if the modulator-channel combination...
ICASSP
2010
IEEE
13 years 8 months ago
2010
IEEE
Due to unique characteristics of sensor nodes, choosing an energyefficient modulation scheme with low-complexity implementation (refereed to as green modulation) is a critical fa...
SSWMC
2004
13 years 10 months ago
2004
A possible solution to the difficult problem of geometrical distortion of watermarked images in a blind watermarking scenario is to use a template grid in the autocorrelation func...
PPSN
1992
Springer
14 years 17 days ago
1992
Springer
This paper introduces a new optimization technique called hyperplane annealing. It is similar to the mean field annealing approach to combinatorial optimization. Both annealing te...
ISCAS
2002
IEEE
14 years 1 months ago
2002
IEEE
Delta-sigma modulation for analog-to-digital conversion resolves a number of bits logarithmic in the number of modulation cycles, and linear in modulation order. As an alternative...
ISCAS
2003
IEEE
14 years 1 months ago
2003
IEEE
A constant-envelope, continuous phase modulation architecture is presented in which a sigma-delta modulator is combined with an open-loop modulator. Compared to existing architect...