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Supporting diverse services under a unified system is a major concern for the realization in the fifth generation (5G) cellular networks. In 5G systems, the massive connection property of massive machine-type communications (mMTC) results in the huge demand of physical downlink control channel (PDCCH) resources. Furthermore, greater overhead of PDCCH is indispensable for ultra-reliable downlink transmission...
The influence of the dielectric-background on UHF RFID tag is first investigated in this paper. Influence made by εr, length, width and thickness of tag antenna is respectively studied. Simulation results given in this paper are benefit to the future dielectric RFID tag design.
Currently, it's lack of repair mechanisms for forming diagnosis in the industry. Normally, once the card goes wrong, it will be replaced with the entire board, that is wasteful. Based on the advantages and disadvantages of various diagnostic methods, a fault diagnosis method is presented in this paper which is fit for the navigation control card. Taking the LNE001CT navigation control card as an example...
Fuzzy C-Means (FCM) clustering is the most well-known clustering method according to fuzzy partition for pattern classification. However, there are some disadvantages of using that clustering method, such as computational complexity and execution time. Therefore, to solve these drawbacks of FCM, the two-phase FCM procedure has been proposed in this study. Compared with the conventional FCM, the usage...
Wireless sensor networks observe the occurrences of concerned events by the collaboration between sensor nodes via wireless communication. Sensors are usually prone to errors due to the unstable conditions they are exposed to. The goal is to solve event boundary detection with faulty sensors (EBDF) problem which is to successfully identify the sensor nodes close to the event boundary when faulty sensors...
This paper investigates and applies a novel large disturbance attenuation method to two kinds of nonlinear power system models. The proposed method is devised by linking the backstepping technique and minimax optimal control theory. The power system models are considered as subjecting to the influences of certain transient disturbances, such as mechanical power fluctuation and short circuit fault...
This design uses the verilog HDL to devise an RISC CPU, which can simplify the instruction system to make the structure of the computer more simple and reasonable. The difference between the RISC CPU and the ordinary CPU is: Its timing control signal components are achieved by the hardwire logic instead of the microprogram control. So its creating speed of the control sequence is much faster than...
In order to harvest sugarcane, the whole stalk sugarcane harvester was designed by South China Agricultural University. Virtual prototyping and key parts of the sugarcane harvester were simulated in PRO/E and ADAMS. The virtual experiment was conducted to study the following factors, separated and lifted-up device, cutting device, primary conveying device, secondary conveying device, and gathering...
Sensor node in wireless sensor networks, due to the unstable conditions they are exposed to, are usually prone to errors which cause the sensor readings to be faulty and usually pose problems on the reliability and security of the whole sensing systems. In this paper, we propose a distributed faulty sensor detection algorithm using entropy. Besides fault detection, our method also corrects the faulty...
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