2010 - VII International Telecommunications Symposium
On the Impact of Non-Linear High Power Amplifiers on Coded OFDM
The high peak-to-average power ratio (PAPR) is one of the main disadvantages of OFDM systems, which reduces the transmission efficiency with non-linear pow...
- Ian Alves Ulian
- André Noll Barreto
- OFDM
- PAPR
- non-linear power amplifier
- total degradation
- channel coding
SBrT 2010
On the Use of Precoding in FBMC/OQAM Systems
Linear precoding can be applied to multicarrier systems to minimize the effect that a deep fade in one of the subchannels can have on the overall bit error...
- Bruno S. Chang
- Carlos A. F. da Rocha
- Didier Le Ruyet
- Daniel Roviras
SBrT 2010
Optical Amplitude Multiplexing through Parametric Amplification: An Analysis for the Idler Signal
Recently a new technique that used parametric amplification in optical fibers to combine two binary signals into a single quaternary amplitude-shift keyin...
- A. L. A. Costa
- J. D. Marconi
- F. R. Barbosa
- E. Moschim
- M. L. F. Abbade
- Optical signal processing
- parametric amplifiers (PA)
- quaternary-amplitude shift keying (4 - ASK)
SBrT 2010
Optimal Policy for Initial Selection Radio Access Technology in Next Generation Wireless Networks
In this paper, we propose an optimal Joint Call Admission Control (JCAC) in next generation wireless networks, where different radio access technologies (R...
- Rodolfo W. L. Coutinho
- Vitor L. Coelho
- Joao C. W. A. Costa
- Glaucio H. S. Carvalho
SBrT 2010
Optimized Blind Algorithms for Widely Linear Beamforming
The use of array beamforming in modern wireless communication systems has been increasingly investigated, due to their potential in rejecting interference ...
- Adilson Chinatto
- Cynthia Junqueira
- João M. T. Romano
- widely linear processing
- blind algorithms
- CMA
- NCMA
- beamforming
SBrT 2010