Online social networks (OSNs) have become the most important platform for people to make friends and show themselves in nowadays, and unauthorized access and usage on people's privacy gains great social attention at the same time. Access control is a general and important way to protect user data from...

A new direction-of-arrival (DOA) estimation algorithm based on signal subspace rebuilding (SSR) is proposed for wideband sources. In the proposed algorithm, the signal subspaces are filtered by SSR to reduce the effect of the direction vectors of non-supposed directions. The signal subspaces of each...

Software defined network and mutable network are two main networking forms in these years. Traditional networking cannot meet the requirements of the renewal in information technology applications. We discuss mutable network and software defined network in this survey. We contrast two networking in motivations,...

A model that generalizes credit-card-based electronic payment systems is analyzed by BAN logic and Kailar logic. This paper extends Kailar logic to process the analysis of ciphertext. This paper provides a new method to analyze ciphertext.

Two novel dual-band microstrip filters using g/2 Stepped-Impedance-Resonator(SIR) resonators are proposed in this paper. The prominent feature of the SIR filter is that the spurious response can be controlled by the impedance ratio Rz and the length ratio of the resonator. Simulated results show that...

For wireless sensor network in substation equipment charged detection, repair, such as communication failure causes changes in node network error of high power consumption during faults, putting forward the working cycle of the adaptive tissue repair method and low power network by dynamically adjusting...

In substation equipment charged detection wireless sensor network level, fault prevention and fault occur in the repair system, in all stages of the life cycle of the network, including testing, deployment and maintenance, the need for a lot of human-computer interactive operation. Different operation...

The introduction of virtualization and the expansion of scale in data center result in sharp consumption of MAC address, ich also expose some weakness in MAC address such as inefficient allocation scheme, and one-dimensional address structure, among others. Varieties of solutions are proposed by researchers...

Network traffic holds the highlighting dynamic features. How to accurately characterize the hidden properties of network traffic has an important impact on network activities, such as anomaly detection and performance analysis. This paper proposes a feature analysis approach to describe network traffic....

We constructed the random SA-mixed models based on Sierpinski and 2-dimension Apollonian networks, which having scale-free properties. In this paper, we prove the scale-free of random SA-mixed network model by two of methods including statistical parameter and partial differential equation. We get the...

As for the loss of the comprehensiveness from the large amount of data when extracting information, this paper proposes a method of character information extraction based on semantic similarity algorithm to improve the comprehensiveness of the character information extraction of massive data in the network....

This paper is concerned with the problem of reachable set estimation for fuzzy cellular neural network with unit-peak bounded. Based on the Lyapunov-Krasovskii functional approach, delay -dependent conditions for estimating the reachable set of the considered system are derived. Moreover, an example...

The Ultra Wide band (UWB) antennas play an important role in UWB system. As a crucial component of the UWB system, the UWB antennas affect performance of the system significantly and have advantages of low profile, low power consumption and integration easily, so they are widely used in communication...

In this paper, image enhancement is realized by using the Incomplete Beta Function (IBF) as the gray transformation curve. The main idea is to employ Artificial Bee Colony Algorithm (ABCA) to select the optimal parameters of IBF, which corresponds to the best curve of grayscale transformation. Designing...

Aircraft type recognition is a problem and key factor of safe docking of aircraft in airport auto-docking guide system. Based on adaptive weighted morphology tree classifier algorithm, it is approved for aircraft type recognition to solve the key issues to docking guide, useing image analysis and recognition...

In order to reduce the nonlinear error, a new method of nonlinear error correction in a wide frequency range is presented. In this method, firstly, the frequency of the measurement signal is divided into three bands. In each frequency band, linear fitting is used to pretreat the difference between the...

This paper presents an Archimedean spiral antenna (ASA) and explores the radiation characteristics of the ASA. We proposes a parallel Archimedean spiral antenna (PASA). The proposed antenna can maintain the radiation characters with a half input impedance compared with the ordinary ASA. The characteristics...

Parallel Combinatory Spread Spectrum (PC/SS) communication system has higher data transmission capability and bandwidth efficiency than conventional Spread Spectrum (SS) communication system. Meanwhile, PC/SS system must correctly select all maximal PN sequences from PN correlations, otherwise it will...

Based on transform domain, this paper presents the research about anti-jamming communication technology. Firstly, it demonstrates the basic principle of transform domain communication system (TDCS), in which message is modulated depending on a kind of basic noise-like function to improve its concealment....

An approach is presented to manage and support a LTE wireless communication networks. The achievements are expressed in terms of formulation and performance. In terms of formulation, a mathematical expression is modeled to describe the Admission Control and handover in LTE networks problem. The outcome...

The High Altitude Platform Station (HAPS) wireless communication channel performance of space near network is investigated. The probability density function is derived. The HAPS commutation system model is built. Then, mathematical model under different conditions is evaluated through numerical simulations...

With the rapid development of Internet, people show growing dependence on network communications. Each user has a lot of network virtual identities because of the explosive increase of network applications. Compared with previous work, our study proposes an algorithm to find virtual identities which...

In this letter, a dual-mode dual-band microstrip bandpass filter (BPF) based on stepped impedance resonator (SIR) for wireless communication applications is introduced. By choosing a proper impedance ratio, a BPF operating at 2.4/5.2 GHz is designed and analyzed. By adjusting the perturbation size, two...

Based on analyzing the total energy consumption of cooperative transmission and the proportion of energy consumption of each node, this paper presents a method for calculating equilibrium degree of the node energy consumption and its balance scheme. Comparing with the traditional cooperative MISO scheme...

Under the combat-targeted network layer description, the paper establishes layered network model for combat-targeted networks so as to facilitate the study on its self-recovery mechanism. Furthermore, it puts forward the optimal self-recovery strategy of the early warning network layer based on the load...

The rapid rise of the mobile payment in China has brought a new round of opportunities and challenges. During this process, the safety problem becomes an important issue of the payment power in the future in China. Based on the general definition of risk, the paper considers the special need of tourism...