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System performance of cellular networks could be improved by D2D communication. A retransmission scheme within D2D group is proposed for the case of data sharing. When all the D2D UEs failed to get data packet from BS by cellular links, retransmission is still carried out within the group. Because of the enhancement of receiving SNR, a UE could decode the data with a higher probability. Analysis and...
Based on Inner Mongolia Autonomous Region, this paper analyzes the long-run and short-run influence of expenditure for S&T on economic growth in the minority area. In the process of analysis, the methods of panel unit root test and panel co-integration together with the error correction model (ECM) are used. The results show that expenditure for S&T promoted the economic growth in the minority...
Hi-tech enterprise is one representative business group in hi-tech field in China. Hi-tech enterprises have higher growth than other enterprises. However, under complicated and uncertain circumstances, their growth is influenced by many factors in every respect and the influences differ from one another. Based on the statistical data in 2010 CHINA TORCH STATISTICAL YEARBOOK, this paper uses multiple...
Embedded safety-critical systems are emerging with increasing complexity and software-intensive, the use of diversity in software is helpful to increase safety and reliability. In this paper, a software diversity model from practice of Zone Controller in communications-based train control application is presented. Firstly, we discuss software architecture and safety tactics of embedded systems, and...
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