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 13 of 13 for “"Large Delay"”.
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High Speed Circuit Design Based on a Hybrid of Conventional and Wave Pipelining
… among sub-blocks, while wave pipelining uses the delay of combinational elements to perform those tasks. As wave pipelining does not introduce additional registers, in principle, it can attain a higher throughput and lower power consumption. However, its throughput is limited by delay variations, …
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Bit error rate simulation enhancement and outage prediction in mobile communication systems
… and statistical moments of a channel's power delay profile are needed. The studies also indicate that for simulations of channels with large delay spread timing recovery is essential.
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Adaptive DS-CDMA multiuser detection for time variant frequency selective Rayleigh fading channel
… channels. In addition, channel acquisition and delay estimation techniques are developed to combat the uncertainty introduced by the wireless propagation channel. This work emphasizes fast and simple techniques that can meet practical needs for high data rate signal detection. Most existing …
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Slow and Fast Light Using Quantum-Dot and Quantum-Well Semiconductor Optical Amplifiers
… the research community. Numerous studies report large optical delays while sacrificing many important aspects of engineering feasibility: bandwidth, device compactness, room temperature operation, ease of integration, and minimized signal insertion loss. Slow and fast light in the quantum-dot and …
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RF Feedforward Interference Cancellation For Wide-band Signals using Adjustable Band-stop Resonators
… incorporates the use of power splitters and large delay transmission lines, and the second methodology uses finite cell artificial left-hand transmission lines. The two structures are used in separating the receiver wanted signal from the interferer, and this separation is required to …
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Optimising Networks For Ultra-High Definition Video
… applications. Current architectures introduce a large delay to video streams, which presents issues for certain applications. In order to overcome this, an improved infrastructure for delivering real-time streams is also presented. The proposed system uses OpenFlow within a content delivery …
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The Design of A Multi-party VoIP Conferencing System
… quality of real-time multi-party conferencing. Delay disparities may cause unbalanced silence periods, and losses and jitters may affect the intelligibility of speech segments received. We collect real Internet traces from the PlanetLab and classify them into different categories according to …
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Sudden-event monitoring of civil infrastructure using wireless smart sensors
… time-consuming data transmission can result in large delay for subsequent damage assessment; (3) sensor malfunction often occurs in wireless monitoring systems, so the existing faulty data may result in false condition assessment, negatively affecting informed decisions. To address these …
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Analyzing performance of SIC with multiple power multichannel Aloha
This thesis analyzes the performance of successive interference cancellation (SIC) when used with multiple power, multichannel Aloha. We use the fluid model to analyze the performance of the system under various circumstances. We also simulate the performance of a SIC system over a single channel. …
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Shear Wave Splitting Analyses in West Texas
… the fast polarization direction and the delay time, are computed using a semi-automatic algorithm. Only a single measurement is obtained at several TA stations near the west and east boundary of the Midland Basin. More SWS parameters are determined in the Delaware Basin and the Snyder …
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Optical pulse distortion and manipulation through polarization effects and chromatic dispersion
… due to polarization effects, and utilize large chromatic dispersion for system performance enhancement. We first demonstrate a method of mitigating polarization mode dispersion (PMD) in fiber optic communication systems. PMD has been a known effect for over a decade. However, it was not an …
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Digital communication receiver algorithms and architectures for reduced complexity and high throughput
… multi-output (MIMO) systems and systems with a large delay spread. In this dissertation, computationally efficient receiver algorithms and low-power implementation of receiver architectures are investigated. First, a low-complexity near maximum-likelihood (ML) detector, called the …
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Phase and Polarization Modulations based on LCOS SLM
… This leads to the complication, bulkiness, and large delay in current methods. Therefore, this research aims to develop a phase and polarization modulation method based on phase-only LCOS SLMs to simultaneously control both the holographic image and its polarization state. Phase-only modulation …