Results 241 to 250 of about 296,485 (288)

Golay code based carrier phase recovery

2008 4th International Conference on Emerging Technologies, 2008
In this paper we present a Golay code based carrier phase recovery scheme. Golay code is a pair of complementary codes. Golay codes have been used for channel coding in communications. We have used the side lobe suppression property of Golay Code in recovery of the phase of the carrier. We begin with the discussion of side lobes suppression property of
Mohammad Bilal Malik
exaly   +2 more sources

Iterative carrier phase recovery methods in turbo receivers

IEEE Communications Letters, 2005
This letter considers carrier phase recovery in turbo receivers. Firstly, a novel maximum-likelihood (ML) based iterative carrier phase estimator is proposed for coded linear modulations over static phase channels. The proposed carrier phase estimator, combined with the iterative sum-product decoder, performs very close to, the Cramer-Rao bound ...
Xiaofu Wu
exaly   +2 more sources

Pilot-Aided Carrier Recovery in the Presence of Phase Noise

IEEE Transactions on Communications, 2011
The paper deals with carrier recovery based on pilot symbols in single-carrier systems. The system model considered in the paper includes the channel additive white noise and the phase noise that affects the local oscillators used for up/down-conversion.
Arnaldo Spalvieri
exaly   +3 more sources

Carrier phase independent timing recovery methods for VSB receivers

IEEE Transactions on Consumer Electronics, 2006
This paper proposes an alternative timing recovery method for VSB receivers. It employs a timing error detector which uses both in-phase and quadrature-phase component of received VSB signal and operates at twice of a symbol frequency. The proposed method shows the insensitivity to residual carrier phase offset contained in the signal, thus providing ...
Joon Tae Kim
exaly   +2 more sources

Pilot-Symbols-Aided Carrier-Phase Recovery for 100-G PM-QPSK Digital Coherent Receivers [PDF]

IEEE Photonics Technology Letters, 2012
A feed-forward pilot-symbols aided carrier phase recovery scheme is described. The approach relies on pilot symbols that are time-division multiplexed with the transmitted data.
Maurizio Magarini, Arnaldo Spalvieri, Francesco Vacondio   +2 more
exaly   +3 more sources

Soft carrier phase recovery for continuous phase modulations

2010 European Wireless Conference (EW), 2010
In this paper a general soft-based synchronization technique for continuous phase modulations (CPM) is presented. In particular two soft carrier phase estimation algorithms are derived, being the phase the parameter that shows the lower implementation complexity.
Marilena Maiolo, Gabriele Boccolini, Marco Luise   +2 more
openaire   +1 more source

Carrier phase recovery for turbo-coded linear modulations

2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333), 2003
In this paper, we present a low-complexity carrier phase estimation algorithm suited for turbo-coded 16-QAM modems. The estimator is based on a maximum likelihood (ML) approach, and unlike previously published work, makes iterative use of soft decisions provided by the soft-in soft-out decoders within the overall iterative turbo decoding scheme ...
LOTTICI, VINCENZO, LUISE, MARCO
openaire   +2 more sources

Novel 16QAM carrier recovery based on blind phase search

2014 The European Conference on Optical Communication (ECOC), 2014
Han Sun, Kuang-Tsan Wu, Sandy Thomson, Yuejian Wu   +3 more
exaly   +2 more sources

Multiplier-free Carrier Phase Estimation for Low Complexity Carrier Frequency and Phase Recovery

National Fiber Optic Engineers Conference, 2012
Carrier phase estimation for QPSK modulation is demonstrated using only real-valued additions without any multiplication or angle computation. Based on simulation and offline data, the same performance as the widely considered 4th-power algorithm is reached.
J. Qi, F. N. Hauske
openaire   +1 more source

Carrier Phase and Clock Recovery for Continuous Phase Modulated Signals

IEEE Transactions on Communications, 1987
This paper presents an analysis of a synchronization circuit to be used for carrier-phase and symbol-timing recovery in continuous phase modulation systems. M -ary modulation formats with arbitrary pulse shaping and rational modulation indexes are assumed. Circuit performance is expressed in terms of variances of phase and timing errors.
D'ANDREA, NUNZIO ALDO, MENGALI, UMBERTO, REGGIANNINI, RUGGERO   +2 more
openaire   +2 more sources