Now showing items 1-10 of 31
Sphere detection and LDPC decoding algorithms and architectures for wireless systems
Ever increasing demand for high data rate wireless transmissions with high spectral efficiency leads to utilization of communication systems with multiple transmit and receive antennas. In addition, excellent error-rate ...
Cooperative communication over two-way channels
In this thesis, we define and analyze communication scenarios in which the source and destination cooperate across noncoherent two-way fading channels. As in practical communication systems, we constrain the bandwidth and ...
The Effect of Preprocessing to the Complexity of List Sphere Detector Algorithms
A list sphere detector (LSD) is an enhancement of a sphere detector (SD) that can be used to approximate the soft output MAP detector used in the detection of the multiple-input multiple-output (MIMO) signals. The LSD ...
Reducing dynamic power consumption in next generation DS-CDMA mobile communication receivers
(Inderscience Enterprises Ltd., 2008-09-01)
Reduction of the power consumption in portable wireless receivers is important for cellular systems, including UMTS and IMT2000. This paper explores the architectural design-space and methodologies for reducing the dynamic ...
PhD Thesis LaTeX template 2008
This item contains a set of template latex files for the PhD thesis at Rice University.
Compressed Sensing for Imaging Applications
Compressed sensing is a new sampling theory which allows reconstructing signals using sub-Nyquist measurements. This can significantly reduce the computation required for both image and video whether during acquisition ...
Symbol timing synchronization for OFDM-based WLAN systems
In this work, we address the problem of symbol timing synchronization for Orthogonal Frequency Division Multiplexing (OFDM) WLAN systems. OFDM systems are known to be sensitive to synchronization errors and improving the ...
Laser spectroscopic trace chemical sensors for environmental sensor networks and portable medical devices
This thesis represents the development of the first laser spectroscopy based trace-gas sensors with sensor characteristics which simultaneously satisfy low cost, handheld footprint, low power, and long term autonomous ...
Tuning support vector machines for minimax and Neyman-Pearson classification
This paper studies the training of support vector machine (SVM) classifiers with respect to the minimax and Neyman-Pearson criteria. In principle, these criteria can be optimized in a straightforward way using a cost-sensitive ...
Flex-Sphere: An FPGA Configurable Sort-Free Sphere Detector For Multi-user MIMO Wireless Systems
(SDR Forum, 2008-10-01)
Spatial division multiplexing (SDM) in MIMO technology significantly increases the spectral efficiency, and hence capacity, of a wireless communication system: it is a core component of the next generation wireless systems, ...