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 11 of 11 for “"W-CDMA"”.
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2GHz W-CDMA Radio Transceiver
… transceiver has been designed and built for a W-CDMA experimental system operating at 2GHz. The radio is an RF front-end for mobile terminals. The radio provides the functions of modulation and demodulation to enable transmitting and receiving digital information through the air link. The radio …
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Capacidad en sistemas celulares W-CDMA
… un análisis de capacidad de sistemas celulares W-CDMA. El estudio considera la interfaz radio, y supone la utilización de detección monousuario basada en receptores Rake. El análisis se centra en los aspectos de control de potencia y asignación celular, y se basa en unos modelos adecuados de …
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Space-time Processsing for the Wideband-CDMA System
… in the Wideband Code Division Multiple Access (W-CDMA) system. Combining the antenna array with a RAKE receiver, both of which exploits multipath diversity, can significantly improve the system performance. In this research, we investigate the performance of these beamformer-RAKE receivers, also …
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Markov Modeling of Third Generation Wireless Channels
… Wideband Code Division Multiple Access (W-CDMA) wireless communication parameters including channels fading statistics, Bit Error Rate (BER) performance and interval distribution of errors are modeled using different Markov models, and their results are tested and validated. Four algorithms …
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Performance of CDMA power control for HAPS
… area. Wideband code division multiple access (WCDMA) has emerged as the mainstream air interface solution for 3G networks. Also the ITU has specifically authorized the use of some IMT-2000 (3G) frequency bands from HAPS. This project addresses downlink and uplink power control for high altitude …
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CMOS design enhancement techniques for RF receivers. Analysis, design and implementation of RF receivers with component enhancement and component reduction for improved sensitivity and reduced cost, using CMOS technology.
… as Bluetooth, Wireless USB, Wimax, Zigbee and W-CDMA transceivers. With the current 32 nm gate sized devices, speeds of 100 GHz and beyond are well within the horizon for CMOS technology, but at a reduced operational voltage, even with thicker gate oxides as compensation. This thesis investigates …
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Characterization of various types of power amplifiers
… linearity requirements, such as ACLR for W-CDMA, E-UTRA for LTE, and ACPR for CDMA2K, must be obtained in order to achieve the basic power amplifier functionality. Detailed explanations will be provided in later sections. Other power amplifier design requirements and specifications also …
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Predistortion for Nonlinear Power Amplifiers with Memory
… environment consists of a multi-carrier W-CDMA signal. All of the studies are performed using numerical simulation on MATLAB and Agilent's Advanced Design System (ADS).
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Simulation of an Implementation and Evaluation of the Layered Radio Architecture
… receiver with adaptive complex filtering and a W-CDMA downlink rake receiver. These metrics are measured from a detailed simulation of Stallion and the Configuration Layer of the Layered Radio Architecture using advanced object oriented programming techniques that facilitate the inclusion of …
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Design and Implementation of a Soft Radio Architecture for Reconfigurable Platforms
… implementation of two receivers: A single user CDMA receiver based on complex adaptive filtering and a W-CDMA downlink rake receiver with channel estimation. Performance analysis of these receivers show that it is important to keep the paging ratio high while maximizing utilization of the …
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Adaptive Duplexer for Software Radio
… The performance is more than adequate for W-CDMA applications. Lowering the duplexing frequency improves the cancellation bandwidth and so the scheme performs better with other standards, such as IS-95 (CDMA), using 45MHz duplexing offset.