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The unique characteristic of the underwater acoustic communication channel force development of new protocols for underwater acoustic sensor networks. Especially, the pretty slower propagation speed of acoustic signals in underwater should be taken into consideration. This paper constructs a link scheduling model on medium access control (MAC) layer for multihop underwater acoustic sensor networks...
The significantly slower propagation speed of acoustic signals, in contrast to RF signals, make the protocol design differ from RF wireless networks. This paper presents an efficient link scheduling method applied to underwater acoustic networks based on TDMA by analyzing the four conflict model in wireless network, and puts forward a conflict description method based on correlation matrix. The proposed...
Multiple independent Rayleigh fading waveforms are often required for the simulation of wireless communication channels. Jakes model and its derivatives based on SoS (Sum-of-Sinusoids) provide simple simulators for Rayleigh fading, but they have shortcomings that their correlation functions are not always approach theoretical value. In this paper, the statistical properties of SoS fading model with...
In order to identify the relative influential factors about employees' psychological boundary, a structural equation model (SEM) is used in the paper. By introducing the research achievements in the field, the paper analyzed and put forward the main idea of the paper, then solved the problem by SEM. A questionnaire was used to collect data. The paper analyzed data with SPSS and AMOS. The result shows...
In order to verify how psychological boundary impacts individual performance, a structural equation model (SEM) is used in the paper. The paper analyzes the relative factors of boundary. Relevant variables are selected to measure the boundary and performance. A full model is set to test and verify the hypothesis by means of SPSS and AMOS. The empirical results show that psychological boundary has...
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