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 20 of 658 for “"error rate"”.
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Reduced Rank Classification and Estimation of the Actual Error Rate
Made available in DSpace on 2014-12-13T18:22:03Z (GMT). No. of bitstreams: 1 7913434.pdf: 5498771 bytes, checksum: f5d8da72e5428f4044ed642e1497ff0f (MD5) Previous issue date: 1978
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Statistical Methods of Bit Error Rate Estimation in Optical Communication Systems
This thesis describes two methods of bit error rate (BER) estimation based on statistical techniques. The first method examines the correlation between the BER and electrical characteristics of an optical receiver circuit. Low correlation is found between the receiver performance and the electrical …
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Bit error rate simulation of a CDMA system for personal communications
… to provide system designers with tools to accurately predict system performance. Analytical techniques are useful for providing general information on system performance, but may not fully capture the complexities of the mobile radio channel needed to accurately predict the performance of …
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The Impact Of Nested Testing On Experiment-Wise Type I Error Rate
… initial risk that must be considered is a Type I error, also known as a false positive. The Type I error rate is set by nominal alpha, assuming all underlying conditions of the statistic are met. Experiment-wise Type I error inflation occurs when multiple tests are conducted overall for a single …
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Probability Density Function Estimation Applied to Minimum Bit Error Rate Adaptive Filtering
… usually attempt to minimize the mean square error (MSE) of some aspect of the received signal, with respect to the desired aspect of that signal. Adaptive minimization of MSE does not always guarantee minimization of bit error rate (BER). The main focus of this research involves estimation of …
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Ambient Backscatter Communication Systems: Design, Signal Detection and Bit Error Rate Analysis
… exchange among billions of battery-operated IoT devices. With its technological capability of simultaneous information and energy transfer, ambient backscatter is quickly emerging as an appealing solution for this communication paradigm, especially for the links with low data rate …
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Non-Wiener Characteristics of LMS Adaptive Equalizers: A Bit Error Rate Perspective
… Wiener equalizer in terms of both mean square error (MSE) and bit error rate (BER). There has been significant work in the past related to the analysis of the non-Wiener characteristics of the LMS equalizer, which includes the discovery of the shift in the mean of the LMS weights from the …
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Bit error rate simulation enhancement and outage prediction in mobile communication systems
… radio communication systems. Internally generated two-ray Rayleigh fading channel models as well as imported spatially varying complex channel impulse responses can be utilized in simulations. Implementation of receiver timing jitter and timing recovery models, as well as modifications of the …
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The Bit Error Rate (BER) Performance in Multi-Carrier (OFDM) and Single-Carrier
… This technique matches well with high data rate connection and provides a higher capacity for the subscribers' usage.</p> <p>The OFDM, as a multi-carrier, is more complex than the single-carrier transmission scheme. However, the OFDM technique maintains better performance for high data rate …
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Effect of power amplifier nonlinearity on system performance metric, bit-error-rate (BER)
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
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Channel Impulse Response and Its Relationship to Bit Error Rate at 28 GHz
… this need increases further. After the terrorist attacks on the Pentagon, it took several days to restore communications. This is not an acceptable time frame when people's lives are at stake. Virginia Tech's Center for Wireless Telecommunication has developed a prototype of a rapidly …
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Bit error rate estimation in WiMAX communications at vehicular speeds using Nakagami-m fading model
… and unless proactive measures such as forward error control and packet size optimisation are adopted and properly adjusted, many applications cannot be facilitated at high vehicular speeds in WiMAX communications. For any proactive measure, bit error rate estimation as a function of vehicular …
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Error rate performance analysis of stream and block ciphers in a digital mobile communication channel.
… the effect of encrypting data on the bit error rate at the receiver. Block and stream cipher modes based on the Data Encryption Standard (DES) are examined. More specifically, Electronic Code Book (ECB), Cipher Block Chaining (CBC), Output FeedBack (OFB) and Cipher FeedBack (CFB) modes are …
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Low computational complexity bit error rate simulation for personal communications systems in multipath and fading environments
… performance is compared based on bit and packet error rates resulting from the simulations. The primary contribution of this thesis is the development of fast and accurate algorithms for channel simulations, and flexible structured implementation of error correction coding. Previous simulation …
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PFU DNA polymerase--a study of amplification error rate and subsequent impliations for high fidelity mutational spectrometry
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1994.
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Analyzing Bit Error Rate using Universal Software Radio Peripheral (USRP) Software Defined Radio in Indoor and Outdoor Environments
… have adverse effects to a reliable system. Bit Error Rate has its own importance in Quality of Service (QOS). This thesis performed an analysis and measurement of bit error rates over long term scales in both indoor as well as outdoor environments with the help of Software Defined Radio’s (SDR). …
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