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The 60GHz band millimeter-wave propagation characteristics are simulated and analyzed using the method of ray tracing method in the indoor complex environment. The propagation characteristics in the line-of-sight(LOS) and non-line-of-sight(NLOS) environment are discussed. The effect of the polarization and the roughness on the root-mean-square(RMS) delay spread are analyzed. Results of the study can...
We present a field-programmable gate array (FPGA)-based solution for high-time-resolution nanoscale nuclear magnetic resonance, with nitrogen-vacancy centers as a probe. The Xilinx FPGA is used to implement a high-performance pulse generator, which contributes to high-precision measurement for the nuclear magnetic resonance (NMR) signal. The pulse generator outputs continuous pulses with a time resolution...
Opportunistic networks are lack of end-to-end paths between source nodes and destination nodes, so the communications are mainly carried out by the “store-carryforward” strategy. Selfish behaviors of rejecting packet relay requests will severely worsen the network performance. Incentive is an efficient way to reduce selfish behaviors, and hence improves the reliability and robustness of the networks...
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