Results 241 to 250 of about 5,925,887 (294)

Joint Decoding and Carrier Phase Recovery Algorithm for Turbo Codes

IEEE Communications Letters, 2001
In this letter, we investigate the sensitivity of the iterative maximum a posteriori probability (MAP) decoder to carrier phase offsets and propose simple carrier phase recovery algorithms operating within the iterative MAP decoding iterations. The algorithms exploit the information contained in the extrinsic values generated within the iterative MAP ...
Wangrok Oh, Kyungwhoon Cheun
exaly   +4 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, Luca Barletta
exaly   +4 more sources

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
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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 ...
Haige Xiang, Xiaofu Wu
exaly   +2 more sources

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

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   +3 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, Yuejian Wu
exaly   +3 more sources

All-Optical Carrier Phase and Polarization Recovery Using a Phase-Sensitive Oscillator

, 2007
An all-optical carrier phase and polarization recovery scheme from PSK signals is proposed and demonstrated for the first time. The scheme uses a phase-sensitive optical oscillator with a phase sensitive amplifier as the gain block. ©2006 Optical Society
Guifang Li, Inwoong Kim, Kevin Croussore
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 feedforward 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, Luca Barletta   +2 more
exaly   +2 more sources

Carrier phase and frequency recovery for MIMO-OFDM

IEEE Global Telecommunications Conference, 2004. GLOBECOM '04., 2005
A new carrier phase and frequency recovery scheme is proposed for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems. The algorithm uses an extended Kalman filter (EKF) to estimate the instantaneous phase and frequency offset.
Hui Jin, Jaekyun Moon, Taehyun Jeon, Sok-Kyu Lee   +3 more
openaire   +2 more sources