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    Implementation of Channel Estimation and Multiuser Detection Algorithms for W-CDMA on Digital Signal Processors 

    Rajagopal, Sridhar; Xu, Gang; Cavallaro, Joseph R. (1999-08-20)
    Proposed algorithms for Third Generation W-CDMA communication systems have extremely high performance requirements. In this paper, we study the implementation issues involved for one of the proposed multiuser channel estimation and detection algorithms for base-stations in the uplink using TI's TMS320C6x DSP Evaluation Modules(EVM). It was found that ...
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    Resource Allocation in Wireless CDMA Multimedia Networks 

    Guo, Yile (1999-05-20)
    In this thesis we developed a resource allocation framework for wireless code division multiple access (CDMA) networks that support multi-class traffic with different data rates and bit error rate requirements. We proposed a new resource allocation scheme using joint adaptive power control and antenna array multiuser receiver in multipath fading ...
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    Optimally Weighted Highpass Filters using Multiscale Analysis 

    Nowak, Robert David; Baraniuk, Richard G. (1996-04-01)
    An obvious approach to image enhancement is to sharpen bright regions of an image more than darker regions. One very simple method to accomplish this is to weight the amount of highpass filtering proportional to the local mean. This gives rise to a class of nonlinear image enhancement filters known as mean-weighted highpass filters. We propose a ...
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    Gradient Estimation for Stochastic Optimization of Optical Code-Division Multiple-Access Systems: Part I -- Generalized Sensitivity Analysis 

    Mandayam, Narayan B.; Aazhang, Behnaam (1997-05-20)
    For optimizing the performance of optical code-division multiple-access (CDMA) systems, there is a need for determining the sensitivity of the bit-error rate (BER) of the system to various system parameters. Asymptotic approximations and bounds, used for system bit-error probabilities, seldom capture the sensitivities of the system performance. We ...
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    A Software Simulation Testbed for CDMA Wireless Communication Systems 

    Sundaramurthy, Vishwas (1999-05-20)
    This thesis develops a software wireless communication testbed which simulates a Code Division Multiple Access(CDMA) link. CDMA is a popular technology in cellular systems due to its superior capacity and performance. The designer of CDMA systems has a wide array of signal processing algorithms to choose from and a variety of operating environments ...
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    The neural correlates of verb and noun processing A PET study 

    Perani, Daniela; Cappa, Stefano F.; Schnur, Tatiana T.; Tettamanti, Marco; Collina, Simona; (1999)
    The hypothesis that categorical information, distinguishing among word classes, such as nouns, verbs, etc., is an organizational principle of lexical knowledge in the brain, is supported by the observation of aphasic subjects who are selectively impaired in the processing of nouns and verbs. The study lesion location in these patients has suggested ...
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    An Integrated CAD Framework Linking VLSI Layout Editors and Process Simulators 

    Sengupta, Chaitali (1995-05-20)
    This thesis presents an Integrated CAD Framework which links VLSI layout editors to lithographic simulators and provides information on the simulated resolution of a feature to the circuit designer. This will help designers to design more compact circuits, as they will be able to see the effect on manufactured silicon. The Framework identifies areas ...
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    Nonstationary Signal Enhancement Using The Wavelet Transform 

    Venkatachalam, Vidya; Aravena, Jorge.L. (1996-03-20)
    Conventional signal processing typically involves frequency selective techniques which are highly inadequate for nonstationary signals. In this paper, we present an approach to perform time-frequency selective processing using the Wavelet Transform. The approach is motivated by the excellent localization, in both time and frequency, afforded by the ...
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    Enhanced signatures for event classification: The projector approach 

    Venkatachalam, Vidya; Aravena, Jorge.L. (1998-10-01)
    The classification of nonstationary signals of unknown duration is of great importance in areas like oil exploration, moving target detection, and pattern recognition. In an earlier work, we provided a solution to this problem, based on the wavelet transform, by defining representations called <i>pseudo power signatures</i> for signal classes which ...
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    On the Correlation Structure of Multiplicity M Scaling Functions and Wavelets 

    Gopinath, Ramesh A.; Odegard, Jan E.; Burrus, C. Sidney (1992-05-20)
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    AuthorBaraniuk, Richard G. (105)Cavallaro, Joseph R. (81)Aazhang, Behnaam (42)Burrus, C. Sidney (34)Jones, Douglas L. (30)Walker, Ian D. (30)Symes, William W. (27)Baker Institute for Public Policy (24)Odegard, Jan E. (23)Tapia, R.A. (23)... View MoreSubjectArchitecture (173)Electrical engineering (101)Electronics (101)Time Frequency and Spectral Analysis (54)Urban planning (54)Temporary (49)Regional planning (46)Wavelet based Signal/Image Processing (41)DSP for Communications (36)Multifractals (19)... View MoreDate Issued1999 (173)1998 (149)1997 (144)1996 (124)1995 (119)1992 (116)1994 (116)1993 (110)1991 (74)1990 (58)Has File(s)Yes (1183)

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    Managed by the Digital Scholarship Services at Fondren Library, Rice University
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