Jiadong Xu
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Jiadong Xu has a total of 1 co-authors. Here are the top co-authors by number of shared publications:
- Thomas Strohmer
University of California Davis
2 shared publications
Latest Publications
- 15 August 2008
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Communications
- Vol. 56 (8) , 1225-1230
Pulse Construction in OFDM Systems Via Convex Optimization
In order to reduce the inter-carrier interference (ICI) produced by frequency offset in OFDM systems, we set up an optimization problem to find the transmission pulse which maximizes the signal-to-average-ICI power ratio. Furthermore, by solving a constrained convex optimization problem, our pulses can satisfy various decay requirements, for instance with respect to a prescribed spectral mask. The latter is an important feature in order to comply with industry standard specifications. Furthermore we discuss issues concerning the numerical treatment of the constrained convex optimization problem. Simulation results show that our pulses outperform many currently known transmission pulses with respect to the ICI criterion.
- 15 August 2008
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Communications
- Vol. 56 (8) , 1225-1230
Pulse Construction in OFDM Systems Via Convex Optimization
In order to reduce the inter-carrier interference (ICI) produced by frequency offset in OFDM systems, we set up an optimization problem to find the transmission pulse which maximizes the signal-to-average-ICI power ratio. Furthermore, by solving a constrained convex optimization problem, our pulses can satisfy various decay requirements, for instance with respect to a prescribed spectral mask. The latter is an important feature in order to comply with industry standard specifications. Furthermore we discuss issues concerning the numerical treatment of the constrained convex optimization problem. Simulation results show that our pulses outperform many currently known transmission pulses with respect to the ICI criterion.
- 1 April 2007
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 3, III-1225-III-1228
Fast Algorithms for Blind Calibration in Time-Interleaved Analog-to-Digital Converters
We present a digital background technique for correcting the time and gain mismatches in a time-interleaved analog-to-digital converter (ADC) system. The proposed blind calibration is applicable to any number of time-interleaved ADCs and requires only modest oversampling. Simulation results show fast convergence and desirable detection accuracy. After the mismatch errors detection, the resulting signal to noise ratio (SNR) of the output signal is shown to be higher than the SNR of the input signal in a 16-ADC system.
- 1 April 2007
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 3, III-1225-III-1228
Fast Algorithms for Blind Calibration in Time-Interleaved Analog-to-Digital Converters
We present a digital background technique for correcting the time and gain mismatches in a time-interleaved analog-to-digital converter (ADC) system. The proposed blind calibration is applicable to any number of time-interleaved ADCs and requires only modest oversampling. Simulation results show fast convergence and desirable detection accuracy. After the mismatch errors detection, the resulting signal to noise ratio (SNR) of the output signal is shown to be higher than the SNR of the input signal in a 16-ADC system.