This work is supported by the National High Technology Research and Development Program of China (No.2008AA01Z208, No.2008AA022503 and No.2009AA01Z405), the National Natural Science Foundation of China (No.60772150), and the Youth Foundation of Sichuan Province (No.2009-28-419).
In sensor networks, the selection of the transmission power level influences the network topology, power consumption and packet reception rate. In this paper, we analyze the effects of power control in the scenario of...
Project supported by the National High Technology Research and Development Program of China(Grant Nos.2008AA01Z208 and 2009AA01Z405);the Applied Basic Research Program of Sichuan Province of China(Grant No.2010JY0013);the Youth Foundation of Sichuan Province of China(Grant No.2009-28-419)
This paper investigates urban traffic data by analysing the long-range correlation with detrended fluctuation analysis. Through a large number of real data collected by the travel time detection system in Beijing, the...