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This paper addresses the hardware implementation feasibility assessment of a probabilistic energy equalizer for UWB impulse radio (IR) transmission. The receiver is based on energy detection and targets data rates greater than 100 Mbps. The aim of this study is to bypass certain complex mathematical functions like the chi-squared (??2) distribution and approximate it by functions easier to implement...
The Expectation-Maximization (EM) algorithm is studied to perform channel estimation in a low cost and high data rate impulse radio UWB receiver. The system under consideration uses a pulse position modulation with a simple analog energy detector. In order to overcome the problems inherent to high data rates, such as inter-symbol interferences, a probabilistic equalizer is used. The EM algorithm and...
This work describes the development of an optimized partitioning algorithm for HW/SW codesign, which employs more realistic cost measures than previous partitioning algorithms and takes into account FPGA reconfiguration time. This algorithm is then used to find the optimal implementation of a digital RAKE receiver for DS-CDMA on an heterogeneous (hardware/software) platform. We additionally describe...
An optimized partitioning algorithm for HW/SW codesign is described and applied to the implementation of a digital RAKE receiver for DS-CDMA on an heterogeneous (hardware/software) platform. The development of this partitioning algorithm aims to gather quality features that have already proved effective when applied separately, but had not been used together yet. The partitioning algorithm is applied...
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