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Efficient simulation of interconnection networks
(1993)
This thesis presents a modular, general-purpose interconnection network simulator called NETSIM developed as an extension to YACSIM, a C-language based process-oriented discrete event simulator. NETSIM is capable of simulating a wide range of switch architectures and network topologies. A NETSIM model can be simulated in a stand-alone mode with the ...
High Performance Reliable Variable Latency Carry Select Addition
(2012)
This thesis describes the design and the optimization of a low overhead, high performance variable latency carry select adder. Previous researchers believed that the traditional adder has reached the theoretical speed bound. However, a considerable portion of hardware resources of the traditional adder is only used in the worst case. Based on this ...
Studies in system representation and control
(1995)
Representation of an abstract system by a mathematical object such as a matrix or a differential equation is important because much of the analysis is done via representations. For discrete-time input-output systems, infinite-matrix kernel representation is the most general representation. We use the notion of finite-horizon systems to characterize ...
Design of computationally efficient multiuser detectors for CDMA systems
(1997)
Linear multiuser detectors have been developed for CDMA systems to maintain a balance between the performance and computational complexity of the detectors. However for a system with a large number of users and huge data block length, the cubic complexity of these naive algorithms is computationally prohibitive for real time estimation of transmitted ...
Design and analysis of direct-sequence multiuser receivers
(1988)
Matched filter receivers are commonly used for Direct-Sequence Spread-Spectrum Multiple-Access communication systems. These receivers are easy to implement and analyze, and are optimal for single user Gaussian noise channels. However, for applications in spread-spectrum networks, lower average bit-error probability can be achieved by a receiver which ...
Process design and circuit model development
(1995)
Process design for integrated circuit manufacturing has traditionally been implemented with little simulation prior to fabrication. As with circuit design of a decade ago, the available simulation tools were mainframe-based, often incompatible, and lacked accurate physical models. Recent developments in process and device simulation allow accurate ...
The design of a laser range imaging device
(1992)
In this thesis, a methodology and techniques for the design of a laser range imaging device (LRID) for robotic applications are presented. Furthermore, a prototype incorporating the concepts presented has been successfully tested in the laboratory. In this LRID, the range is determined by the shift in phase in the return of a modulated laser beam ...
Multiuser detection in code-division multiple-access communications
(1989)
Multiuser detection strategies are derived and analyzed for several signal detection problems arising in Code-Division Multiple-Access channels. Modulation schemes which lend themselves to coherent and noncoherent demodulation are considered. For coherent communication, a suboptimum multistage detection strategy based on successive multiple-access ...
Loss inference in unicast network tomography based on TCP traffic monitoring
(2001)
Network tomography is a promising technique for characterizing the internal behavior of large-scale networks based solely on end-to-end measurements. Despite the efficiency of active probing in most network loss tomography methods, these measurements impose an additional burden on the network in terms of bandwidth and network resources. They can ...
Performance of multiprocessors and parallel algorithms: Quicksort, a case study
(1989)
Performance of parallel algorithms on multiprocessors has been traditionally analyzed by looking at either the algorithm or the architecture of the multiprocessor system. However, it is important to study the combined effect of both these factors in order to evaluate and predict performance. A different methodology based on approximate trace-driven ...