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To explore and simulate the influence of multipath fading, pathloss, and shadowing fading on wireless networks, this paper creates mathematical and simulation models for multipath fading and shadowing fading, designs an approach to calculating the shadowing effect, and optimizes the utilization of the pathloss exponent. Moreover, modeling and simulation are implemented with a simulation software-OPNET...
Based on the combination of space time modulation and chaotic frequency hopping (FH) techniques, a novel scheme of differential space-time modulation for chaotic slow FH system is proposed. This scheme collects the strong points of differential space-time coding and chaotic FH spread spectrum technology. It is high immune to interception and prediction by generating chaotic sequence as pseudo-noise...
The problem of distributed estimation in wireless sensor networks (WSNs) has attracted much attention. As bandwidth and power are severely limited in WSNs, one of the main objectives in current WSN research is to design bandwidth and power efficient algorithms. A multitude of studies along this line have appeared. Among them, some previous works (e.g., (A. Ribeiro and G.B. Giannakis, 2006), (Z. Luo,...
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