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 10 of 10 for “"diversity technique"”.
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A Novel Diversity Technique to Improve the Channel Coding Performance in Wireless Communications
… power. Therefore, the thesis proposes a novel diversity technique which is known as Multipath Forward Error Correction (MPFEC), and the diversity processing method is known as Column Weight Multipath Combiner (CWMC). Furthermore, the thesis suggests RS(255,239)+BCH(1024,963) concatenated code …
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Information theory of transmit diversity and space-time code design
… After that, we consider a simple transmit diversity technique [7], and evaluate its achievable information rate. We note that in the case of a single receiver antenna there is no loss in capacity if one reserves to this technique as a mean of exploiting transmit diversity. However, we note …
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Simulation study of frequency estimators
… available. In the static fading channel, diversity technique can be easily incorporated to improve the performance of the proposed frequency estimator.
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Adaptive radio resource management for mobile satellite systems
… to improve the performance is initiated. The diversity technique and rate compatible punctured turbo-code (RCPT), which has been found to give improved throughput performance in a direct sequence (DS) CDMA, are exploited.
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The optimization of multiple antenna broadband wireless communications. A study of propagation, space-time coding and spatial envelope correlation in Multiple Input, Multiple Output radio systems
This work concentrates on the application of diversity techniques and space time block coding for future mobile wireless communications. The initial system analysis employs a space-time coded OFDM transmitter over a multipath Rayleigh channel, and a receiver which uses a selection combining …
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Characterization and Engineering of Error Statistics for Reliable Computation
… enhance the performance of various robust design techniques. A simple additive error model is presented for arithmetic computations. The proposed error model is shown to be a strong function of the architecture, and a weak function of the input statistics, thus enabling a one-time off-line …
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Advanced receivers for space-time block-coded single-carrier transmissions over frequency-selective fading channels
… (STBC) has emerged as an effective transmit-diversity technique to combat the detrimental effects of channel fading. In addition to STBC, high-order modulation schemes will be used in future wireless communication systems aiming to provide ubiquitous-broadband wireless access. Hence, advanced …
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Methods to reduce perturbation effects in compressive sampling
… the noise of the recovered signal by extracting diversity gain from given measurements with virtual multiple branches of recovery. Diversity technique is commonly used in a wireless receiver to reduce noise by combining signals from multi-sensors. However, dCS method uses only a single sensor to …
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Methods to reduce perturbation effects in compressive sampling
… the noise of the recovered signal by extracting diversity gain from given measurements with virtual multiple branches of recovery. Diversity technique is commonly used in a wireless receiver to reduce noise by combining signals from multi-sensors. However, dCS method uses only a single sensor to …
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Low-bit-rate joint source-channel decoding aided wireless video communications
… decoding employing sophisticated transmission techniques. Therefore in this thesis we focus our attention not only on the source and channel coding but also on their iterative decoding and transmission. Initially, we investigated the H.264 codec’s error sensitivity. The perceptually more …