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In this paper, a compact planar current sensor is developed to be used in active current balancing applications for parallel-connected Silicon Carbide (SiC) MOSFETs. The designed Rogowski coil allows non-intrusive current measurement with low profile, compact size, and high bandwidth. The sensor circuit design extends both lower and higher cutoff frequency of the sensor, and allows a continuous measurement...
This paper studies multi-relay compressive cooperative schemes in which the source and the relays utilize compressive sensing (CS) as joint source-channel coding (JSCC). We consider four decode-and-forward (DF) strategies to forward the CS measurements here, namely receive diversity, code diversity, successive decoding and concatenated decoding, and derive their respective achievable rates in the...
In this paper, we propose a novel proportional fair scheduling algorithm for MAC-layer sensing in the cognitive radio networks (CRNs). According to the secondary user (SU) channel state information and primary user (PU) traffic patterns, the SUs are adaptively scheduled to carry out sensing and transmission in different channels. Moreover, we jointly consider multiple important design factors in the...
Recently, cognitive radio has become a hot spot, in which secondary users could use the frequency bands when primary users are absent. Hence, the detection of primary users' presence plays an important role in cognitive radio networks. In this paper, a cognitive radio network with multiple licensed users is considered. Secondary users cooperatively detect the presence of primary users using energy...
In this paper, we construct a novel MAC-layer sensing framework for fast discovery of spectrum opportunities. We employ the sequential probability ratio test and a novel collaborative sensing scheme, in which the collaboration exists among multi-users and multi-slots. Then, we propose a novel scheme of adaptive collaboration sensing schedule for fast spectrum opportunities discovery and prove that...
Wind turbine blades are the key component of wind turbine. The blades may be damaged by fatigue, wind gusts, or lightening strikes. It is important to detect the damage before the blade catastrophically fails, which could destroy the entire wind turbine. In this paper, a new method is presented for damage diagnosis on wind turbine blades which is developed based on the distance classification rules...
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