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 116 for “"System Capacity"”.
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A Methodology Incorporating Manufacturing System Capacity in Manufacturing Cost Estimation
… the consideration of the existing facility capacity. By incorporating the existing capacity, manufacturing cost estimations can more accurately represent true factors such as overtime and material handling.</p><p>This thesis describes a methodology to incorporate system capacity in cost …
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Novel Adaptive Array Algorithms and Their Impact on Cellular System Capacity
… Code Division Multiple Access (CDMA) cellular systems. Adaptive arrays have been proposed as early as in the 1960s to improve the signal quality, but most of its applications were restricted to defense purposes. Recently, there has been a surge in interest of applying adaptive arrays for …
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Practical performance and system capacity of lightwave AM SCM video systems
Subcarrier multiplexing (SCM) on lightwave systems is an important technique for the near term implementation of broadband services by both telecommunication and cable TV companies. With advance in opto-electronics technology in the mid-1980s, lightwave SCM systems can now be practically …
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The Impact of Antenna and RF System Characteristics on MIMO System Capacity
… Such multiple-input multiple-output (MIMO) systems show promise for dramatic performance gains over their single-antenna counterparts. However, MIMO system performance is influenced by many different factors. Antenna array configuration directly contributes to MIMO system performance. The …
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AMPS co-channel interference rejection techniques and their impact on system capacity
… a critical problem because of its impact on system capacity and quality of service. The conventional approach to minimizing interference is through better cell planning and design. Digital Signal Processing COSP) based interference rejection techniques provide an alternative approach to …
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Enhanced Representations of Probabilistic Resource Adequacy Risk in Power System Capacity Expansion Modeling
Power system infrastructure investment optimizations traditionally rely on capacity-based reserve margin heuristics to produce least-cost solutions that also meet probabilistic resource adequacy criteria. While these conventional strategies have always had shortcomings, they are becoming …
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Using discrete-event simulation to increase system capacity : a case study of an assembly plant
… new technology and to improve the manufacturing system for the 777X production line, Boeing has made a significant capital investment in the Composite Wing Center (CWC). The new facility uses highly automated equipment and processes to support the production of components for the 777X. Since many …
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SEARCHING FOR THE FACTOR OF SAFETY: A STUDY OF WOOD ROOF SYSTEM CAPACITY AS IT APPLIES TO SOLAR PHOTOVOLTAIC INSTALLATION
… residential installation of photovoltaic roof systems has generated the need to re-examine the structural capacity of residential structures. Currently, a perspective exists that residential wood roofs may not be able to carry the additional load of a photovoltaic (PV) array. This research …
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Capacity Improvement Using Adaptive Sectorisation in WCDMA Cellular Systems With Non-Uniform and Packet Mode Traffic
CDMA cellular mobile systems find widespread acceptance particularly in regional centres where there are large geographical areas to cover. However, temporal changes of user density due to formation of congregated population centres (called hot spots) can seriously undermine the system design goals …
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Performance of CDMA power control for HAPS
… of power control imperfections. However in real systems power control imperfections degrade the system capacity. In this project, the performance of two distance based forward link power control schemes (nth-power-of distance and optimum power control schemes) are evaluated for high altitude …
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Resource Management with Smart Antenna in CDMA Systems
Third generation (3G) mobile communication systems will provide services supporting high-speed data network and multimedia applications in addition to voice applications. The Smart antenna technique is one of the leading technologies that helps to meet the requirement by such services to radio …
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Time dependent adaptive filters for interference cancellation in CDMA systems
… major problem in modern wireless communications systems. No longer are background noise and average power loss the limiting factors in system capacity corruption of the available spectrum by multiple access and nearby interference provides the upper limit to system capacity. If the exponential …
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Fixed-Point Implementation of a Multistage Receiver
… quantization; however, these effects can degrade system performance and therefore decrease overall system capacity. The first objective is to analyze and simulate various effects of synchronization in a multistage system. These effects include the effect of unsynchronized users on the bit error …
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Co-channel interference cancellation in mobile cellular communication systems
… for its services has increased dramatically. The capacity of mobile communication systems is mainly limited by co-channel interference caused by frequency reuse. The acceptable co-channel interference at the receiver determines the minimum allowable distance between adjacent co-channel users and …
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The stochastic air traffic flow management rerouting problem
… aircraft to alleviate en-route congestion, with system capacity being modeled stochastically. To overcome problems with tractability, we apply a Dantzig-Wolfe decomposition and present an efficient method for solving it. The decomposed formulation is shown to be tractable for real-world problem, …
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The capacity of Montreal Lake, SK to provide safe drinking water
… The purpose of this study was to assess the capacity of Montreal Lake, SK to provide its residents with safe drinking water, both now and into the future. This research employed a mixed methods approach in the examination of the community’s water system and management practices. Data sources …
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On the Impact of MIMO Implementations on Cellular Networks: An Analytical Approach from a Systems Perspective
Multiple-input/multiple-output (MIMO) systems with the adaptive array processing technique, also referred to as smart antennas, have received extensive attention in wireless communications due to their ability to combat multipath fading and co-channel interference, two major channel impairments …
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Measurement System and Campaign for Characterizing the Theoretical Capacity and Cross-Correlation of Multiple-Input Multiple Output Indoor Wireless Channels
The demands for greater capacity and lower transmitted power have historically motivated research in spatial diversity systems. Diversity techniques have been implemented in many current systems and have been shown to reduce the transmit power required to maintain acceptable system performance. …
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Strategic and operational plan for better material handling
… and a new product launches, the current capacity will not be sufficient for 2012. In order to avoid the production loss and increase the operational efficiency, four solutions have been tested, including forklift trucks and labor extension, Kanban redesign in staging areas, conveyor …
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Design of a prototype personal static var compensator
… include decreased power costs and increased system capacity. The PSVC prototype consists of two types of branches---a TSC branch and a TCR branch. A microprocessor is responsible for calculating the load displacement power factor (PFD) and for executing the fuzzy logic control scheme for the …
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