Practical Byzantine Fault Tolerance (PBFT) consensus mechanism shows a great potential to break the performance bottleneck of Proof-of-Work (PoW)-based blockchain systems, which typically support only dozens transactions per second and require minutes hours for transaction confirmation. However, due frequent inter-node communications, PBFT has poor node scalability thus it is adopted in small networks. To enable large systems such as massive Internet Things (IoT) ecosystems blockchain, this...

In many real-world face restoration applications, e.g., smartphone photo albums and old films, multiple high-quality (HQ) images of the same person usually are available for a given degraded low-quality (LQ) observation. However, most existing guided methods based on single HQ exemplar image, limited in properly exploiting guidance improving generalization ability to unknown degradation process. To address these issues, this paper suggests enhance blind performance by utilizing...

In this paper, the properties of tunable unidirectional absorption in one-dimensional (1D) plasma photonic crystals (PPCs) are theoretically investigated by transfer matrix method. The PPCs composed dielectric layers and non-magnetized magnetized layers. simulated results show that a ultra-wideband region (absorption rate is larger than 0.9) whose relative bandwidth 36.2% can be obtained proposed 1D PPCs. effects parameters such on features (UAR) also studied. computed illustrate UARs tuned...

For the purpose of realizing fast and effective detection defects yarn-dyed fabric via computer vision, in consideration inherent characteristics texture, that is, color structure, an applicable approach for intelligent defect is proposed this paper. The image enhanced by fractional differentials first converted from RGB true space to L*a*b* space, energy-based feature images are acquired after Log-Gabor filter filters chromatic brightness channels. Then paper defines relations between...

As an attractive means of expanding mobile network capacity, heterogeneous is regarded as important direction evolution. To increase the capacity of, for example, hot spots, a typical scenario in that coverage areas low power nodes (LPNs) are overlapped with macrocell. utilization small cells generated by LPNs, cell range extension (CRE) used to extend adding specific offset (CSO) during selection procedure. The value CSO, however, needs be set carefully. In this paper, users macrocells,...

Recently, how to exploit unlabeled data for training face recognition models has been attracting increasing attention. However, few works consider the shallow <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sup> in real-world scenarios. The existing semi-supervised methods that focus on generating pseudo labels or minimizing softmax classification probabilities of do not work very well data. It is still a challenge effectively utilize improve...

AbstractIn this paper, we present a novel defect evaluation method that uses combined features and modified support vector machine (SVM) classifiers to characterize classify the defects of yarn-dyed fabrics. Yarn-dyed fabric images are preprocessed, nine parameters defined in feature extractors. Based on binary textural energy for regions, can be described, such as weft length, warp length ratio, perimeter, area, roundness, coarseness, contrast, directionality. These also used inputs...

In this paper, to realize unidirectional ultra-wideband absorption and polarization splitting, a new 1D plasma photonic crystal (PPC) composed of an air layer nonmagnetized magnetized layers is theoretically studied. the proposed PPCs, TM TE waves are absorbed when electromagnetic wave forward transmission. For backward propagation, reflected. We consider that such phenomenon splitting. The simulated results present largest relative bandwidths co-occupied splitting regions 76.64% 99.09%,...

Handover Parameter Optimization (HPO) and Load Balancing (LB) are two Self-Organization network (SON) aspects which aim at improving LTE system handover performance user's satisfaction respectively. However, there is often counteraction between LB HPO, because would increase the frequency of inter-cell correspondingly possibility problems. Furthermore, most HPO jointly optimization methods don't consider allowed maximum radio link failure (RLF) ratio, call dropping although cell loading...

Multi-party interaction scenarios usually involve and collaboration between multiple participants, such as business negotiation, teamwork, etc. In multi-party scenarios, trust mechanisms are needed to ensure the use of rights fulfillment obligations. The blockchain smart contracts establish a decentralized mechanism is solution. development process may require experts in different fields design them together, it difficult for non-experts understand contract code. traditional method developer...

With Cell Range Extension in a heterogeneous network, the users range extension area usually suffer from high interference macro cell. This may degrade cell-edge user downlink performance if resource provided Low Power Node can not compensate for loss increased interference. paper proposes an adaptive algorithm to dynamically adjust coverage of Node. By using this algorithm, is extended according varying traffic situation network so as avoid any unnecessarily extension. Simulation results...

Nowadays, Voice of LTE (VoLTE) is used to support voice communications in network. As one the key techniques for VoLTE, semi-persistent scheduling (SPS) important improve capacity VoLTE users. However with SPS, resource and modulation coding scheme (MCS) are usually decided by initial keep unchanged during active state. Considering continuously changing channel, it hard ensure performance packet. In order solve this problem, a allocation algorithm proposed based on prediction channel quality...

Deploy and maintenance of Future LTE RAN will be more complex, time consuming, expensive. In order to meet the requirements operators users, self-organization networks is introduced. As one most important self-optimization issues, Mobility Load Balancing ( MLB ) has received much attention until now. this paper, we present a novel method achieve for RAN, namely, LCIMM (Lightly-loaded Cell Initiated Method). The lightly loaded cell can initiate trigger handover behaviors users by...

In this work, the properties of tunable unidirectional ultra-wideband absorption for one-dimensional (1D) plasma photonic crystals (PPCs) with Thue-Morse sequence are theoretically investigated, which consist only eight layers two different frequencies. The computed results show that whether incident electromagnetic wave is TM or TE wave, can be observed in proposed 1D PPCs, and largest relative bandwidths regions (UARs) waves 128.31% 64.16%, respectively. To study performance UARs, effects...

Heterogeneous networks (HetNets) have been considered as a promising technique for improving spectral efficiency, but the energy efficiency influenced by fluctuation of user numbers should not be neglected to achieve green communications. We introduce energy-efficient switch-off mode algorithm pico cells reduce power consumption in self-organizing network (SON). Once is initiated some picked cells, users connecting these would face problem redistribution. In this paper, we saving (ES)...