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Wireless body area network (WBAN) has attracted more and more attention to automatically and intelligently sense the health data of one person for supporting various health applications in smart cities. In the energy-constrained and heterogeneous WBAN system, there are three main issues: 1) the dynamic link characteristics due to the time-varying postures and environments; 2) the high energy efficiency...
Wireless Body Area Network (WBAN) has become a promising type of networks to provide applications such as real-time health monitoring and ubiquitous e-Health services. One challenge in the design of WBAN is that energy efficiency needs to be ensured to increase the network lifetime in such a resourceconstrained network. Another critical challenge for WBAN is that quality of service (QoS) requirements,...
It is important to scientifically and reasonably allocate reliability factor for system design, development and experiments. Based on some kinds of traditional used methods of reliability factor allocation, one allocation method based on synthetically grading method is introduced. In this paper, this method is modified for reliability factor allocation based on synthetically grading. It is suitable...
Based on the samples of listed manufacturing companies in Shanghai and Shenzhen security markets from 2001 to 2004, the empirical study shows that there is a positive correlation between the level of legal protection for investors, product market competition and corporate capital allocation efficiency. When legal protection for investors is poor, product market competition can more significantly increase...
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