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This letter presents the results of field trials conducted in Brazil to evaluate the performance of digital broadcasting systems. Analog FM and digital HD radio signals broadcasting the same content were simultaneously transmitted in the urban and suburban areas of the city of Belo Horizonte in Brazil. A mobile unit recorded the received signal intensity and reception quality along radial routes of...
This article presents results of the evaluation of the energy detection technique that can be used for the implementation of cognitive radio DSA (Dynamic Spectrum Allocation). The experimental data consists of received signal measurements at geo-positioned points different routes in a urban area, when OFDM signals are transmitted in 3.5 MHz channels with the central frequency of 3,44 GHz. The results...
Networks-on-chip (NoCs) have emerged as a new design paradigm to implement MPSoCs that competes with the standard bus approach. They offer more scalability, flexibility, and bandwidth. Nevertheless, FPGA manufacturers still use the bus paradigm in their development frameworks. In this paper, we study the complexity and performances of a FPGA implementation for a crossbar NoC. We propose a generic...
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