Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"multiuser receivers"”.
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Spatial -Temporal Multiuser Receivers for Cdma-Based Communications
Within this work, we first provide a tutorial to basic temporal CDMA receiver designs. Improved temporal interference cancellation techniques are then developed using a direct measure of bit estimate reliability in the cancellation stage. We then investigate several techniques for integrating …
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Adaptive MMSE multiuser receivers in MIMO OFDM wireless communication systems
… paper of 1999. Implementing the Adaptive MMSE Receivers in MIMO OFDM systems which I refer to (AMUD MIMO OFDM), combines the adaptive minimum mean square error multiuser receiver's scheme with prior information of the channel and interference cancelation in the spatial domain, achieves enhanced …
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Receiver Implementations for a CDMA Cellular System
… single user correlation or matched filter receivers. Previous research has shown that multiuser detection receivers that employ interference cancellation techniques can significantly improve the capacity of a CDMA system. This thesis studies two such structures: the successive interference …
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Performance Evaluation of Multiuser Detectors with V-BLAST to MIMO Channel
… First, we review the performance of three multiuser receivers; the decorrelator, the MMSE receiver and the multistage parallel interference cancellation receiver in an AWGN and Rayleigh flat fading SISO channel. Next, the V-BLAST algorithm is reviewed and the error propagation of this …
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The application of multiuser detection to cellular CDMA
This research investigates the application of multiuser detection to Code Division Multiple Access for cellular communications. This investigation focuses on the use of multiuser receivers at the base station of mobile radio systems. The first two chapters are dedicated to multiuser detection in …
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A multistage RAKE receiver for CDMA systems
… the interference rejection capability of multiuser receivers with the robust performance of a RAKE receiver in the presence of multipath interference. Unlike previous multiuser receiver designs, this multistage RAKE receiver requires no a priori information about the time-vary multipath …
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Multiuser detection for CDMA systems with convolutional coding
… It has been shown by previous research that multiuser detection receivers employing interference cancellation techniques can significantly improve the capacity of COMA systems. Error correction coding is also an important technique for overcoming severe channel degradation. In this project, …
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Optimization of Soft Interference Cancellation in DS-CDMA Receivers
Parallel interference cancellation for DS-CDMA has been shown to suffer from biased amplitude estimates if a matched-filter estimator is used. The bias magnitude is proportional to the number of interfering users. For heavy system loads, the bias has been shown to adversely effect the accuracy of …