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Evidence indicates that wireless video traffic has played an important role in cellular networks. Device-to-device (D2D) enabled caching technology has been proposed to alleviate network backhaul traffic pressures, especially in peak hours. In this paper, a Stackelberg game is proposed to solve the interests' conflict in D2D-enabled wireless caching networks, where exist two kinds of users including...
This paper introduces the harmonic sources and transmission modes of the wind farms with doubly-fed introduction generators; Based on the PSCAD/EMTDC simulation software, total harmonic distortion of voltage(THDU) and individual harmonic ratio of current(HRI) of a single wind turbine operated in different transmission modes can be got respectively. Then THDU and HRI of the wind farm are calculated...
A low cost 4 ports microstrip line phase shifter is proposed. It is composed of the fixed substrate and the movable substrate. The simulation results show that it can realize equal variety of phase difference between nearby ports by moving the movable substrate, and the maximum phase difference ±215 degrees can be achieved at 2 GHz with the maximum deviation to the ideal line only 8°. The differences...
Optimal sensing time in spectrum sensing is studied in this paper with a target function developed by weighting the data transmitting time and the data transmitting opportunities. The optimal sensing time is derived for Additive White Gaussian Noise (AWGN) channel. The simulation results show that the optimal sensing time decreases when data transmitting time weights more than data transmitting opportunities...
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