منابع مشابه
A novel digital lock detector for QPSK receiver
A new lock detection algorithm for digital quadrature phase-shift keying (QPSK) receiver is proposed. Analysis of the detector’s output characteristics is given and is verified by using computer simulation. Performance degradation due to carrier jitter is also considered. Analytic and simulation results show that the proposed algorithm is very useful as a lock detector in digital receivers beca...
متن کاملTime Domain Model for Costas Loop Based QPSK Receiver
A complete Matlab model is made for a millimeter wave wireless communication system including a four-phase Costas loop for carrier recovery and QPSK demodulation. Simulation results are presented to demonstrate the dynamic behaviour of the Costas loop and the effects of noise, linearity and bandwidth limitations. The time domain results are compared to the frequency domain transfer function der...
متن کاملInitial Coding Results with a Millimeter-wave Six-port Qpsk Receiver
In this paper, error-control coding is used with a six-port direct-digital QPSK receiver [1] in an AWGN channel. The direct-conversion wideband six-port millimeter wave receiver proposed herein meets the needs of MMIC mass-market wireless communications. Convolutional code and Turbo code are used as the channel codes for the first time in this type of receiver. The BER results for the convoluti...
متن کاملLong-reach 10-Gb/s RSOA-based WDM PON employing QPSK signal and coherent receiver.
We demonstrate a long-reach wavelength-division-multiplexed passive optical network (WDM PON) operating at the symmetric rate of 10.3 Gb/s. For the cost-effectiveness, we realize the upstream transmission by utilizing directly-modulated TO-can packaged reflective semiconductor optical amplifiers (RSOAs) and digital coherent receivers. In addition, to overcome the limited modulation bandwidth of...
متن کاملAdaptive minimum bit error rate beamforming assisted receiver for QPSK wireless communication
This paper considers interference limited communication systems where the desired user and interfering users are symbol-synchronized. A novel adaptive beamforming technique is proposed for quadrature phase shift keying (QPSK) receiver based directly on minimizing the bit error rate. It is demonstrated that the proposed minimum bit error rate (MBER) approach utilizes the system resource (antenna...
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ژورنال
عنوان ژورنال: IEEE Transactions on Circuits and Systems I: Regular Papers
سال: 2014
ISSN: 1549-8328,1558-0806
DOI: 10.1109/tcsi.2013.2268313