Browsing EECS Theses and Dissertations by Issue Date
Now showing items 1-20 of 344
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Direction of arrival angle estimation schemes for wireless communication systems
(2005-05)In array signal processing, estimation of the direction of arrival angle (DOA) from multiple sources plays an important role in the array processing area, because both the base and mobile stations can employ multiple antenna ... -
Service differentiation via cooperative MAC protocol (SD-MAC)
(2005-12)With the recent advances in wireless communications and networking area, it has been a great challenge for researchers to improve a medium access protocol for providing an efficient service differentiation in wireless ad ... -
Information theoretic analysis of the capacity of multi channel digital image watermarking
(2005-12)Watermarking channel capacity is defined as the highest rate in bits per image of information that can be embedded with arbitrarily low probability of detection error under a given distortion between original and watermarked ... -
Optimal zonal protocol for containing rebroadcast in mobile ad-hoc networks
(2005-12)With the proliferation of inexpensive and widely available wireless devices, the arena of mobile computing has been expanded dramatically in recent years. Mobile ad hoc networks have been envisioned as the future of wireless ... -
Distributed source coding using non binary LDPC
(2005-12)In this thesis we have extended non binary low-density parity-check (LDPC) codes, developed for channel coding, to be used for source coding to compress correlated non binary sources. Focusing on the asymmetric case of ... -
Electric transmission line routing using a decision landscape based methodology
(2005-12)Transmission line construction is one of the most complex engineering projects. Routing a transmission line is much more difficult than routing any other public infrastructure. The present system used by utilities is time ... -
Statistical approach for predicting remaining life of crosslinked polyethylene insulated cables
(2005-12)This study focuses on developing new remaining life model of the Cross linked polyethylene (XLPE) insulated medium voltage cables that are in use for hot and dry climate. Cross linked polyethylene insulating material ... -
Predicting recloser failure rates from field condition assessment
(2005-12)This research develops a technique to predict the failure rate of a power distribution system recloser. The prediction is based on suggested criterion given and defined within this paper. Because inspection practices differ ... -
Distributed detection and data fusion in resource constrained wireless sensor networks
(2005-12)Wireless sensor networks have received immense attention in recent years due to their possible applications in various fields like battery-field surveillance, disaster recovery etc. Since these networks are mostly ... -
Voltage control with shunt capacitance on radial distribution line with high R/X factor
(2005-12)As a previous study showed, the voltage on a distribution line with high R/X ratio will actually decrease as shunt capacitance is added. This thesis develops a new distribution feeder model and confirms this unexpected ... -
Enhanced routing protocol for graceful degradation in wireless sensor networks during attacks
(2005-12)With the deployment of Sensor networks gaining some popularity, researchers are now focusing on solving the issues concerned with making sensor networks more feasible and viable. As Sensor networks have various constraints ... -
Space frequency block coded OFDM systems with adaptive modulation and improved antenna selection
(2005-12)This thesis proposes a new antenna selection scheme for the conventional space-frequency block code (SFBC) - orthogonal frequency division multiplexing (OFDM) system using adaptive modulation. In the proposed scheme, the ... -
LDPC encoded pilots for iterative receiver improvement
(2005-12)Turbo and low density parity check (LDPC) codes show performances approaching Shannon capacity. This thesis proposes a novel iterative channel estimation and LDPC decoding scheme where the pilot symbols are encoded and can ... -
Stabilization of an arbitrary order transfer function with time delay using PI, PD and PID controllers
(2005-12)This thesis is concerned with developing a procedure for stabilizing a linear time-invariant plant of an arbitrary order with time delay utilizing proportional-integral (PI), proportional-derivative (PD) and proportional ... -
Time division duplex-wideband code division multiplex (TDD-WCDMA)
(2006-05)Code Division Multiple Access (CDMA) has been used in cellular communications area, e.g., in the second generation mobile phones since early 1990’s. Wideband CDMA (WCDMA) is a newer and faster radio technology used in the ... -
Application of stochastic control and robust stability of singularly perturbed unified systems
(2006-05)The unified approach and singular perturbation theories are two of the most highly recognized and rapidly developed areas in the control field recently. In this thesis, a stochastic optimal controller design using state ... -
Economic analysis of electric energy storage
(2006-05)This thesis presents a cost analysis of grid-connected electric energy storage. Various battery energy storage technologies are considered in the analysis. Life-cycle cost analysis is used. The results are presented in ... -
Asymptotic fusion performance in a power constrained, distributed wireless sensor network
(2006-05)The performance of decentralized detection in power constrained wireless sensor network is analyzed. We consider two distributed processing schemes; the analog relay amplifier local processing and the quantized decision ... -
Robust and reduced order h-infinity filtering via LMI approach and its application to fault detection
(2006-05)The objective of this dissertation is to develop a practical methodology for designing full and reduced order H[infinity] filter for plants with polytopic model uncertainty. Because the polytopic model description is convex, ... -
Dynamic voice codec determination mechanism for VoIP
(2006-05)Emerging voice over IP networks dictate a need for efficient network resource management schemes to mitigate the best-effort nature of IP. Traditional quality of service and call admission control mechanisms provide network ...