Browsing ECE Publications by Title
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Fermiedge superfluorescence from a quantumdegenerate electronhole gas
(2013)Nonequilibrium can be a source of order. This rather counterintuitive statement has been proven to be true through a variety of fluctuationdriven, selforganization behaviors exhibited by outofequilibrium, manybody ... 
FFTAccelerated Iterative MIMO Chip Equalizer Architecture For CDMA Downlink
(20050301)In this paper, we present a novel FFTaccelerated iterative Linear MMSE chip equalizer in the MIMO CDMA downlink receiver. The reversed form timedomain matrix multiplication in the Conjugate Gradient iteration is accelerated ... 
Finite Backlog Effects on Downlink Scheduling
(20031120)In a multiuser downlink system, the use of channel estimates in the scheduling process can significantly improve the spectral efficiency. Recent work has shown that from a sum rate capacity standpoint, and assuming infinite ... 
Finite Memorylength Linear Multiuser detection for Asyncchronous Communications
(19970520)Decorrelating, linear, minimum meansquared error (LMMSE), and noisewhitening multiuser detectors for codedivision multipleaccess systems (CDMA) are ideally infinite memorylength (referred to as IIR) detectors. To ... 
Finite memorylength linear multiuser detection for asynchronous CDMA communications
(19971020)Decorrelating, linear, minimum meansquared error (LMMSE), and noisewhitening multiuser detectors for codedivision multipleaccess systems (CDMA) are ideally infinite memorylength (referred to as IIR) detectors. To ... 
Finite Rate Feedback Design for Multiple Transmit Antennas
(20021020)Many practical systems employ a feedback channel to convey the channel state information to the transmitter.The capacity of the feedback channels is usually limited to a few bits per frame. We design feedback based ... 
Fixed Point Error Analysis Of Multiuser Detection and Synchronization Algorithms For CDMA Communication Systems
(19980420)Conventional correlation based singleuser techniques for Direct Sequence Code Division Multiple Access (DSCDMA) wireless communication systems are susceptible to performance degradation due to interference from other ... 
FlexSphere: An FPGA Configurable SortFree Sphere Detector For Multiuser MIMO Wireless Systems
(20081001)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, ... 
A Flexible and Efficient Application Programming Interface (API) for a Customizable Proxy Cache
(20030320)This paper describes the design, implementation, and performance of a simple yet powerful Application Programming Interface (API) for providing extended services in a proxy cache. This API facilitates the development of ... 
A Flexible LDPC/Turbo Decoder Architecture
(20110701)Lowdensity paritycheck (LDPC) codes and convolutional Turbo codes are two of the most powerful error correcting codes that are widely used in modern communication systems. In a multimode baseband receiver, both LDPC ... 
Flexible NWay MIMO Detector on GPU
(20121017)This paper proposes a flexible MultipleInput MultipleOutput (MIMO) detector on graphics processing units (GPU). MIMO detection is a key technology in broadband wireless system such as LTE,WiMAX, and 802.11n. Existing ... 
Flexible Wavelet Transforms Using Lifting
(19980901)We introduce and discuss biorthogonal wavelet transforms using the lifting construction. The lifting construction exploits a spatialdomain, predictionerror interpretation of the wavelet transform and provides a powerful ... 
FloatingPoint CORDIC for Matrix Computations
(19881001)The CORDIC algorithms provide a VLSI hardware technique for computing the inverse tangents and vector rotations needed by many matrix decomposition algorithms. Although normally stated for fixedpoint arithmetic, the CORDIC ... 
Focused terahertz waves generated by a phase velocity gradient in a parallelplate waveguide
(2015)We demonstrate the focusing of a freespace THz beam emerging from a leaky parallelplate waveguide (PPWG). Focusing is accomplished by grading the launch angle of the leaky wave using a PPWG with gradient plate separation. ... 
ForWaRD: FourierWavelet Regularized Deconvolution for IllConditioned Systems
(20040201)We propose an efficient, hybrid <i>FourierWavelet Regularized Deconvolution</i> (ForWaRD) algorithm that performs noise regularization via scalar shrinkage in both the Fourier and wavelet domains. The Fourier shrinkage ... 
Four top reasons why mutual information does not assess neural information processing
(20020720)Mutual information between stimulus and response has been advocated as an information theoretic measure of a neural system's capability to process information. Once calculated, the result is a single number that supposedly ... 
A FourierProny Tauberian Approach to the Analysis of a Mixture of Delayed Signals
(19790920)Let x and y be signals (i.e. realvalued functions of time) of finite duration and energy. In the present paper, we develop a frequency domain Prony approach for interpolating, or in general, approximating y(t) by .... 
An FPGA Based Rapid Prototyping Platform for MIMO Systems
(20031120)There exists a seemingly limitless demand for wireless communications systems capable of higher datarates with lower power consumption. While the demand for improvement in these systems seems limitless, the spectrum ... 
An FPGA Implementation Of Alamouti's Transmit Diversity Technique
(20031001)This paper presents the FPGA implementation of a multiple antenna wireless communications system based on Alamouti's transmit diversity scheme. Alamouti's transmit diversty scheme is a spacetime block code with support ... 
FPGA Implementation of Dynamic Threshold Sphere Detection for MIMO Systems
(20061101)In this paper, we consider the FPGA implementation of a modified sphere detection algorithm. We analyze breadthfirst and depthfirst search in sphere detection, and compare the relative performance and complexity. Based ...