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Electromagnetic analysis for multilayered interconnect structures is carried out by integral equation approach in which volume-surface integral equations (VSIEs) are used. The conducting interconnects are described with surface integral equations (SIEs) whereas the dielectric substrates are governed by volume integral equations (VIEs). The VSIEs are usually solved by the method of moments (MoM) with...
When AMT vehicles are driven under crowded conditions, the vehicle speed should be kept at a low level through clutch control. However, owing to relatively large noise to the low vehicle speed, it is difficult to measure the vehicle speed accurately, instead, in this paper, the transmission output shaft speed is adopted to control the vehicle speed. To improve speed tracking performance, a gain-scheduling...
Collision avoidance (CA) for an Unmanned Surface Vehicle (USV) is a key technology for autonomy especially in a complex environment. To decide a suitable steering occasion to maneuver for the CA of an USV may be very helpful in some applications such as the long-term monitoring task in the environment with various obstacles. In this paper, a steering occasion strategy is designed. Firstly, a feasible...
Due to the widespread deployment and low cost, WiFi has become one of the most attractive research fields in indoor environments, for example, almost every smart mobile device can be a WiFi signal receiver and transmitter. Various WiFi based indoor localization approaches have been proposed under different circumstances. However, most of them are only suitable for relatively small indoor environments,...
Aiming at the problem of unbalanced distribution of the utilization rate of the charging station, which caused by the disordered charging of a large number of electric vehicles, an orderly charging strategy for electric vehicles is proposed. Firstly, the location of the electric vehicle's charging demand is clustered by using the hierarchical clustering and quadratic division based on K-means to achieve...
A 14-mode polarization-maintaining ring-core fiber (PM-RCF) is designed for spatial division multiplexing optical networks, which is compatible with single-mode fibers. All the modes are separated from their adjacent modes with effective refractive index differences larger than 10−4 whatever the PM-RCF is straight or bent at C-band.
We design a metric to measure the occupied holding time difference of frequency slots. With the metric, a routing and spectrum allocation algorithm in dynamic scenario is proposed to improve the network spectral utilization. Evaluation results show the proposed algorithm outperforms obviously in blocking probability.
Since Moran's seminal paper on an index to measure spatial autocorrelation among a set of geographic objects, spatial autocorrelation coefficients have been widely used in many research and application fields. In this paper, we provide detailed reasoning for indices for measuring spatiotemporal autocorrelation. We first briefly highlight the classic Moran's Index for measuring spatial autocorrelation...
In this paper, we propose a distance-adaptive load balancing algorithm to improve spectrum efficiency and to reduce power consumption in flexible bandwidth optical networks. Simulation results show that our proposed DALB algorithm significantly reduces blocking probability but consumes more power consumption compared to the traditional Dijkstra algorithm under the 40 Gbps, 100 Gbps, and mixed line...
Comparing with the traditional global navigation satellite system (GNSS) based Bistatic SAR (GNSS-based BiSAR), the BiSAR based on GPS-L5 signal plays a superior role in remote sensing applications, as for its feature of stronger power and larger bandwidth. In applying this method, the consequent problems, yet, such as long dwell time and large range cell migration (RCM) are inevitably leading the...
In this paper, we present a novel cross-stratum resources integration (CSRI) architecture in fog-computing-based radio over fiber networks (F-RoFN) for 5G services. Additionally, a cross-stratum optimization (CSO) scheme is introduced in the proposed architecture. The CSRI architecture with CSO scheme can effectively pull the remote processing resource locally to implement the cooperative radio resource...
A resource allocation scheme consisting of joint assignment of routing, wavelength and time-slot is proposed to construct different channels in software-defined optical networks secured by quantum key distribution (QKD). Security level is considered by key-updating period.
We present a micro edge cloud (MEC) architecture for resource optimization and implement the virtualization of resource. The virtualization solution is demonstrated to verify the overall feasibility and efficiency.
This paper proposes a flexible intelligence cloud-based radio over optical fiber networks by designing and using a reconfigurable wavelength-frequency selective switch. Numerical results demonstrate the feasibility of the proposed architecture and excellent spectrum effectiveness.
The Microwave Imager Combined Active/Passive (MICAP) is a suit of active/passive instrument package, which has been proposed for demonstrating the capability of remote sensing the sea surface salinity (SSS), sea surface temperature (SST) and wind speed (WS). In this paper, a nonlinear optimization algorithm for simultaneous retrieval of the above parameters is described. The sensitivity of active/passive...
In this paper, we investigate tradeoff between failure probability and load balancing in flexible bandwidth optical networks. We develop a tradeoff-principle algorithm (TPA) to improve spectrum efficiency and introduce a traditional algorithm (TA) for comparison. Simulation results show that TPA achieves better performance compared to TA.
This paper presents a rain rate retrieval algorithm for tropical cyclones (TCs) using passive microwave Fengyun-3B (FY-3B) MWRI brightness temperature (TB). Channel 18.7 and 36.5GHz of FY-3B/MWRI are used to implement retrieval algorithm. Two databases are constructed: one is 15,153 matchups of MWRI TB and NSIDC global swath ocean products for rain rate retrieving and another databset of 5,093 matchups...
Belief fusion consists of taking into account multiple sources of belief about a domain of interest. This paper describes cumulative and averaging multi-source belief fusion in the formalism of subjective logic, which represent generalisations of binary-source belief fusion operators previously described. The advantage of this approach is that we can model and analyse belief fusion situations involving...
Channel state information (CSI) has been recently shown to be useful in performing security attacks in public WiFi environments. By analyzing how CSI is affected by the finger motions, CSI-based attacks can effectively reconstruct text-based passwords and locking patterns. This paper presents WiGuard, a novel system to protect sensitive on-screen gestures in a public place. Our approach carefully...
Facilitated by the emerging technologies of cloud computing, vehicular cloud computing (VCC) is being expected to be a new paradigm to create a new situation for vehicular data services. However, with the increasing popularity of vehicular cloud services, accessing vehicular terminals and produced mobile data are experiencing tremendous growth, therefore, how to provide enough capacity for all access...
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