The traditional Sparse Chirp Stepped-frequency ISAR imaging method has the problem of low imaging quality and large computational complexity. In view of the above problems, this paper studies a sparse Chirp Stepped-frequency ISAR imaging method based on two-dimensional fast iterative shrinkage threshold...

Blind recognition of STBC is an important issue in the non-cooperative context. However, the research on blind recognition over frequency-selective fading channels has been rarely reported. This paper introduces a novel and efficient algorithm for the frequency-selective fading channels to classify STBC...

For the weakness of the existing predistortion algorithm, when large amplitude component in the modulation signal which is more than the voltage in saturation will be limited, leading to predistortion algorithm become invalid, and a new joint RF power amplifier (PA) linearization method is proposed....

This paper proposed a advanced delegation agent model based on roles, which was QRBAC(Quick Role-Based Access Control) based on the model of RBAC(Role-Based Access Control). By means of introducing the model's system architecture and defining element of QRBAC, the model has a great application values...

In ZigBee networks, a tree topology is often used to construct a wireless sensor network for data delivery applications. However, the distributed address assignment mechanism provided in the ZigBee specification make inefficient use of the address space, which may cause the orphan problem. In this paper...

In order to ensure the security of the wireless network, Wi-Fi Alliance uses stream cipher algorithm RC4 to encrypt data in the security protocol WEP/WPA. RC4 is a fast algorithm but easy to break. To solve the problem, WPA2 is proposed which uses block cipher algorithm to improve the anti-crack ability...

This project brings forward the design of the remote WiFi investigation of network and forensics system for police based on Raspberry Pi. It can realize remote control in a few hundred meters away, and aim at the traffic data in the suspects' WiFi networks to gather the evidence. The contents of the...

It is of particular importance to use the limited spectrum resources efficiently since they are non-renewable. The spectrum efficiency can be doubled theoretically with the Co-time Co-frequency Full Duplex (CCFD) technology. Existing research results show that CCFD is achievable under the condition of...

Device-free means targets not carrying any device. Localization and tracking of device-free targets has attracted much attention due to its potential applications where the targets are not cooperative, such as safe guard system. In this paper, we propose a simple Line-Of-Sight (LOS) model and Hierarchical...

Fiber Optics Gyroscopes (FOGs) are widely used due to their low cost. This paper proposes a simulation on denoising method for FOG signal. Hybrid Kalman filter algorithm are applied to denoise the FOG signal in both static and dynamic conditions. Single axis and three axis FOG signals with different...

Mobile users increased demand for access to mobile communication services is accelerating the technological development towards the integration into the various modes of wireless access communications with respect to coverage, QoS assurance, implementation, operational costs supported features, etc....

Motorcycles have higher rates of fatal accidents than any other automobiles in India. Hence, wearing a helmet alone is not sufficient to prevent accidents and save victims. Helmet wearing alone is not sufficient to save the life of a motor cyclist. The solution proposed in this work to address this life-threatening...

In order to improve the accuracy and efficiency of indoor location, an improved algorithm of indoor location is proposed in this paper, which is much easier and faster to achieve by a common hardware. The proposed algorithm based on the isosceles triangle layout is much more convenient to extend the...

Web page classification has wide applications. Due to various types of web pages and vast amounts of network traffic, it is difficult to classify web pages by deeply inspecting the content of each packet. This paper presents a learning-based classification method according to TCP/IP header features....

Considering the weak signal of partial radiant point, the traditional TDOA(Time Difference of Arrival) detector cannot meet the requirement. A weak signal detection method based on double time difference collaborative mechanism is proposed. In this thesis, the double time difference collaborative detector...

There are many difficult challenges, such as variety, quantity, distribution etc. in the unstructured data tracking management, which lacks an effective file tracking management solution. In this paper, based on the storage mechanism of HBase, we propose a data life cycle tree storage structure, and...

There is a serious barrier to the interaction between the visually impaired and traditional printing, so this paper proposed a new accessible interaction on the basis of the existing application Voiceye. The whole process is uploading editable text information that corresponds to paper material to the...

In order to improve the real-time power quality monitoring, this paper presents a power quality monitoring system based on ZigBee, mainly comprising three parts, these are the monitoring system of power quality, composition data communications and monitoring center. Power system operation of power quality...

In wireless networks, it is important to ensure fairness among data flows in their access to network bandwidth. Providing end-to-end fairness in mobile networks is particularly challenging. This paper proposes a packet tagging and prioritized scheduling scheme that achieves fairness under network dynamics,...

Vehicle rental service is being developed greatly in recent 10 years. A remote monitoring and decision-making system is proposed in this paper. This system can help the lessors to supervise their vehicles in real time. It also facilitates the customers to acquire the real time status of the rented vehicle,...

By adopting ad hoc technique, the routing protocol of data network can be realized in smart home system. Due to the features of low moving speed, less number of nodes and high data rate, few present ad-hoc protocols are suitable for smart home data network. In order to make up the deficiencies of present...

In this paper, we propose an effective and efficient method to remove haze from a single input image. We first remove fine details from the minimum channel of RGB channels by a low-pass filter and then use it as a rough estimation of the transmission map. Then, we refine the rough estimation by using...

Similarity measure is a usual image processing algorithm, which is decisive for the quality of image registration. And Fast Normalized Cross Correlation(FNCC) is one of the most common similarity matching algorithm. However, it is computationally intensive and very time consuming which limits its application....

In this paper, a R/S analysis method based on clustering coefficient time series is presented to testify the mobile social networks (MSNs) is fractal and organized. It is found that MSNs are fractal in the scale of clustering coefficient. Then use the Hurst exponent to make some simple forecasts if the...

We require the system for haze removal can process in real-time and have an accurate result. However, the existing algorithm can hardly meet the two requirements which we discuss above. In this paper, we propose a novel algorithm which is using the minimum channel in R, G, B and the difference of the...

Based on the research of existing fire monitoring system, a fire monitoring cloud platform for monitoring building fire protection equipment status using Internet of Things (IoT) technology is proposed in this paper. The cloud platform consists of three layers: sensing communication layer, cloud computing...

Nowadays mobile data traffic is soaring gradually year by year, the total monthly mobile data traffic (includes uplink and downlink) has come to more than 3,500 Petabytes and the growing trend is continuing. Video streaming demand is the significant contributor of cellular network data traffic, it accounted...

The paper proposes a channel coding system with both error correction performance and security performance. The implementation of security performance is to construct a cluster of parity check matrices with the same structure and to replace check matrices constantly in the coding process, which can be...

With the continuous development of science and technology, the servo motor control system based on real time industrial Ethernet is now more widely applied in the field of industrial automation than ever. This paper expounds the design of a servo motor control system based on POWERLINK Industrial Ethernet....

In order to solve the problem of LEACH Algorithm cannot guarantee the larger residual energy node absolutely were elected as cluster head , and it consumes large amounts of energy for double counting of cluster head election, at the same time, the influence of the node distance for cluster head election...

The existence of selfish nodes and malicious nodes pose a significant threat to the complex environment of opportunistic network. In order to improve the transmission security in bad environment, a multi-dimensional trust model GRATM(Grey Relational Analysis Trust Model) based on gray relational degree...

Proxy signature schemes have been suggested for use in a number of applications, so the security of proxy signature scheme is more and more important. However, at present, almost all the proxy signature schemas were proven secure in the random oracle model, which has received a lot of criticism. Recently,...

In this paper, we use finite element method to study contact problem of non-Newtonian fluid material. We focus on Cauchy equation which describes the velocity changes in the flow field. The space domain is discrete by Lagrange interpolation function with 16-point bicubic elements. The time domain is...

In this paper we have developed a robust scalable hybrid scheme for Fast Parallel compositon of Dunhuang murals based on Matrix Tearing. The large cost associated with solution of partitioned linear systems, which is required to perform the matrix-vector multiplication, was avoided by presenting a scheme...

The letter introduces random linear network coding (RLNC) based cooperative diversity transmission scheme to guarantee reliable wireless video streaming transmission. For Rayleigh block fading channel, RLNC assisted direct communication method increases packet reliability at high signal-to-noise ratio...

Along with the development of the urban rapid transit, the overhead traffic monitoring, and according to the traffic situation in a timely manner to make all kinds of control, management, and induced measures is one of the development trend of urban intelligent transportation. In this paper, the video...

An efficient distributed Alamouti Space-time coded relay cooperation scheme is proposed over a Rayleigh fading channel, where structured irregular systematic low-densityparity-check (LDPC) codes are employed. In the known channel state information (CSI) scenario, a concatenation of combiner and joint...

In-band full-duplex wireless techniques have provided an attractive opportunity to double both spectrum efficiency and network throughput. A shared wireless channel permits two sets of directional paths, one called by primary and the other by secondary, onto which two different pair of wireless stations...

The domestic and foreign status of terahertz wireless communication is introduced, and the paper analyzes the feasibility of ultra high speed short range and high speed long range inter-satellite terahertz communication. The capacity of inter-satellite terahertz communication system under the ideal additive...

In order to provide the same or better service quality in the Internet than traditional circuit-switched telephone network, there exist a number of issues to be dealt with that have hampered it in the Internet. These need good network planning and capacity management algorithms. The network performance...

To achieve better performance and bandwidth in the mobile communication, some vendors have already introduced LTE service. The following issues concerning LTE such as performance estimation, throughput analysis, quality of service, voice/data integration are of great interest for deep research. Therefore,...

Radio over fiber (ROF) systems are attractive solutions for broadband wireless access network due to its capacity for supporting high speed data rate transmission. And optical heterodyning is a promising method to generate microwave signals used in radio over fiber systems. Beating of the different modes...

A novel asymmetric U-Shaped slot antenna with WLAN application is proposed and fabricated. The proposed antenna consists of an asymmetric U-shaped slot and an inverted L-shaped slot which are designed to applied to WLAN devices, in addition, fed by a coplanar waveguide (CPW) Furthermore, Good agreement...

In this paper, a novel bandpass filter (BPF) with high selectivity and great out-of band suppression is proposed by using stepped impedance resonators (SIR) and defected ground structure. The measured 3-dB bandwidth of the proposed BPF is 2.62-2.72GHz; the maximum simulated insertion loss is 0.4 dB within...

The aggregation of residents' private data drives improvements in the smart homes, however it comes with compromising on privacy. Hence, privacy preservation has become an increasing requirement for residents. Since users might have different privacy requirements, and their privacy requirements might...

For burst communication systems, high estimation accuracy and large estimation range cannot be achieved at the same time at low signal to noise ratio(SNR), a hybrid data-aided(DA) and code-aided(CA) carrier synchronization scheme is proposed. Firstly, the synchronization parameters coarse estimation...

This paper explores a new parallel interference cancellation (PIC) scheme for multi-carrier DS-CDMA. For the PIC scheme, frequency diversity technique and the linearization of soft decision function are used to simplify the complexity and improve the system performance. The theoretical analysis over...

In the traditional opportunity spectrum access cognitive radio system(OSA), the state of the primary user is assumed to be constant during the entire frame duration, the secondary user accesses licensed band with proper power only when primary user is detected idle. In fact, the state of the primary...

Nowadays, intelligent application has been widely used which has an ever-increasing effect on our daily life. However, some applications are too complex to operate especially for vulnerable group. This article aims at designing an use-friendly door lock for vulnerable group when they are home. Bluetooth...

Aiming at difficulties for vehicle tracking on the specific scenes such as fast motion, rotation, drastic illumination and scale change, a new discriminative tracking algorithm for moving vehicles is proposed in this paper. We incorporate low-rank sparse representation and dictionary learning with the...

Mobile communication is increasingly oriented towards the usage of all IP networks as fixed network components. The handover performance of mobile IPv6 is one of the key factors which guarantee the QoS of mobile Internet. In this paper, an enhance handover scheme in hierarchical MIPv6 networks by utilizing...

In constrained networks of IoT applications, Constrained nodes have sleep mechanism to reduce energy consumption, which causes an unreliable communication. CoAP has been defined as an application protocol for Constrained networks by IETF CoRE WG, with reliable unicast and unreliable group communication...

IPv6 stateless address auto-configuration is a brand new method to generate IPv6 address. Similar to IPv4, IPv6 has also defined stateful address auto-configuration rules based on DHCPv6, while SLAAC can either work without DHCPv6 or rely on some functions of it. This research has summarized and analyzed...

Nowadays the information technology and mobile terminal equipment are developing rapidly, how to develop mobile applications more effectively has become a really hot topic. This paper mainly focus on the research and design of information exchange between Android client and web server and the framework...

CoAP is designed as an application layer protocol for IoT applications by IETF CoRE WG, and CoAP over WebSocket is currently of interest to researchers. This paper analyzes the features and defect of the HTTP/CoAP proxy proposed in RFC 7252, and explains the CoAP over WebSocket proxy as well as its advantage...

In this paper, with the combination of DDS, PLL, multiplier and mixing techniques, a millimeter wave (mm-wave) full-coherent frequency synthesizer with low phase-noise and spurs is developed. It includes a mm-wave source. A linear frequency modulation (LFM) generator and a microwave source serving as...

Treating wastewater by bio-reactors combined with electrolytic cells gets better efficiencies in practices. Beside removal of pollutants by electro-oxidation reactions, organic polymerization is considered as another mechanism contributing to remove pollutants in treating wastewater by electrolysis....

An Singular Value Decomposition (SVD) based method was proposed and developed in this work to estimate the m-sequence of modulated Direct-Sequence Code Division Multiple Access (DS-CDMA) signals with carrier frequency offset. By building eigenvalues based objections, a proper carrier frequency range...

we present Wireless Indoor Localization System (WILS) that enables commercial WiFi infrastructures to implement localization in the complex indoor environment. Receive Signal Strength Indication (RSSI) is utilized by some systems to get a high accuracy of localization, but they are easily be affected...

Since the Internet of Things has become more and more popular, the number of devices in IoT increase at a rapid clip. Some Researches introduced virtual object to enrich the management of the devices. Therefore, virtual object life cycles will need to be thoroughly managed, so that when their usage changes...

Spiral space phase distribution of the vortex wave form specific orbital angular momentum. This paper studies the effect of atmospheric turbulence on the vortex wave phase through the numerical simulation. In order to analyze the influence of atmospheric turbulence on the vortex wave, we make comparison...

Massively parallel processing architecture, as a common parallel processing server architecture, is widely used in the field of mathematical modeling and database processing which require a lot of computing. This architecture can complete the calls of multiple processors by the coordination, which can...

The existing anonymous region construction schemes based on continuous Location-based service (LBS) queries do not solve the temporal and spatial relationship of common user sets in adjacent anonymous regions. The attacker can reduce the anonymous region and reduce the common user set by the Maximum...

K-anonymity technology is one of the important technologies of location privacy protection based on LBS(Location-based service, LBS), it protects users' location privacy by constructing ASR(anonymous spatial region, ASR). Existing construction schemes for ASR based on continuous LBS queries giving rise...

Human Activity monitoring has become increasingly important and has the potential to support a wide area of applications including elder care, well-being management, fitness tracking and building surveillance. Traditional approaches involve wearable sensors and specialized hardware installations. Compared...

Resource allocation and deployment of network Service Function Chain (SFC) is a vital problem of 5G network virtualization. By introducing SDN and NFV technology, the core network is reclassified as the control layer, forwarding layer and scheduling layer. A Virtual Network Embedding algorithm based...

Sudden Disaster always damages communications infrastructure, adding to the difficulties of rescue efforts. To address this problem, this paper studies the features of post-disaster emergency communication scenario and proposes specific Domain-based Opportunistic Network Model (DONM) which divides an...

The ability to accurately determine the geographic location of an arbitrary IP address has potential in many applications. This paper presented a novel algorithm for IP geolocating based on network measurement. Considering the features of China Internet's distribution, using trace route tools, we build...

In order to visualize the validation results of Indirect Line of sight stabilization, Visual simulation research is carried out. In the VC++ environment, the visual simulation platform is built by combining the OpenGL and MFC technology. The target and field of view are simulated. Process of Indirect...

Ship targets recognition algorithm based on wavelet domain Kernel Singular Value Decomposition(KSVD) feature extraction was proposed to deal with the problem of ship targets recognition in SAR images. Low-frequency sub-band image is obtained by two-dimension discrete wavelet decomposition of a SAR image....

In this paper, we consider the problem of nonregenerative two-way secure relay beam forming (SRB) for cognitive radio network (CRN) under the background of the simultaneous wireless information and power transfer (SWIPT). Our objective is to maximize sum rate under the transmit power constraint at the...

Single data center is difficult to meet current demands of data storage and computing resources, leading to data broadly stored in different data centers far from each other geographically. Cross-domain big data processing usually requires data from other data centers across different network. Since...

This paper studies the path tracking control of fourwheel steering autonomous vehicles in presence of uncertainties of tire-road condition, modeling uncertainties, and unexpected disturbances. Due to the fast convergence of the wheel subsystem, the simplified vehicle model can be developed based on the...

Because of high breeding density, the laminated henhouse with six overlap tiers cages microclimate has more influence to layers health and production performance. At present, the environmental measuring parameters and the measuring points are too less to reflect the whole henhouse environment. To solve...

Sparse representation plays an important role in signal processing. Recently, the analysis sparse representation has been attracting more and more attention. In this paper, an improved analysis K-SVD denoising algorithm based on disagreement-segment is proposed. A signal is first divided into small redundant...

As a new wireless network coverage device, the active optical distribution system used for coverage enhancement of GSM, TD-SCDMA and TD-LTE wireless networks has many merits, such as green, micro power, multi-antenna and multipoint uniform depth coverage when compared with the traditional indoor distribution...

This paper focuses on the commonly used glass fermentation tank in biological fermentation, aiming at improving and optimizing the current monitoring process of biological fermentation. Based on the LabVIEW platform, we have designed a set of monitoring system to study biological fermentation process....

With the popularity of computer and internet, cybercrime is rampant. However, the characteristics of internet making it more difficult to monitor the cybercrime, such as openness anonymity high speed and across localization. In this paper, we propose a new method to prevent cybercrime. Critical Information...

Corner detection algorithms are widely used in image recognition, image matching and edge detection. Accurately finding a corner in a image can greatly improves the algorithms accuracy of the above research areas. So many scientists and researchers have begun to the hot research field and have made much...

In this paper, we have analyzed the sub-protocol stack of Long Term Evolution Advanced (LTE-A) System, and proposed a hybrid covert channel, called HyLTEsteg, designed for LTE-A System. The HyLTEsteg uses covert timing channels (CTC), which is fitted the legitimate data stream of network, as a trigger...

Using of the least square support vector machine to predict the horizontal displacement of deep foundation pit. According to the measured time series data of horizontal displacement of foundation pit, using the least square support vector machine (SVM) to set up the relation model of foundation pit horizontal...

SZG file is a programming platform for users to use Ternary Optical Computer (TOC) in high-level language program. This paper proposes an initial SZG file, with an extension .SZG, generation technology for structured data. The technology proposed in the paper can implement some functions such as storing...

In order to ensure the accuracy of decision-making, need to be integrated the inevitable uncertainty information and fuzzy information into their decision-making process. In view of this, this paper proposed a Cloud TOPSIS method with the decision matrix contained the uncertainty and fuzziness information...

To improve the detection performance and detection speed of wideband spectrum sensing algorithms with little priori knowledge, a scheme of cooperative wideband compressed blind sensing without reconstruction based on higher-order moment (CWCBS-HOM for short) is proposed. The test statistic is extracted...

High altitude platform station (HAPS) is a new means of wireless communication method, which operate in stratosphere whose altitude is about 20km. In order to improve the channel quality of wireless communication transmission and signal-to-noise ratio.The wirless communication network of HAPS are studied...

The paper presents a method (Improved Fuzzy Analytic Hierarchy Process) to evaluate the development of rural informatization over the past decade in China. This article developed a rural informatization evaluation system including Rural informatization infrastructure, Rural informatization technology...

Rough fuzzy set theory and fuzzy set theory are two commonly used tools in today's uncertain type of information processing. How to construct a fusion method for two kinds of uncertain information systematically has been a focus in both academic and applied fields. By analyzing the characteristics and...

2.5-dimensional (2.5D) sound field reproduction is a hot topic in acoustic signal processing, which overcomes the dimensionality mismatch (DM) problem between 2-dimensional (2D) sound field synthesis and practical sound sources. Based on the cylindrical/spherical harmonic expansion of Higher Order Ambisonics...

Currently tracking Track initiation in most core processes, how to achieve multiple objectives in a complex environment more accurate track initiation is still the key and difficult problems of target tracking. Waveform agile radar is currently the latest breakthroughs in the field of cognitive technology...

This paper studied the staffing problem of a multi-skill call center in N-design. In this model, there are two types of customers and two groups of servers who have different skills. We proposed a new state space division method, according to the different state of each agent groups, dividing the infinite...

A fast handover algorithm using DAD-Less mechanism for hierarchical mobile IPv6 was proposed for the problem of mobile node handover latency by duplicate address detection in HMIPv6 in order to improve the performance of handover for HMIPv6. The IP address allocation mechanism and new interface identifier...

Cyber Physical Systems (CPS) is regarded as a new technological revolution, which tightly integrates computing, communication, and control technologies, to build a kind of smart networked distributed embedded control system. CPS is designed to interact autonomously with the volatile external environment,...

Danger signal perception and response model of perception layer in IoT based on immune peril principle (DSPRM-IPP) and related algorithms were proposed. DSPRM-IPP model includes immunologic tolerance module, danger perception and accumulation module and response module. Immunologic tolerance module's...

The necessary observation space to achieve the lowest geometric dilution of precision (GDOP) based absolute-range measurement in two-dimension (2-D) wireless location systems is researched. Angle of coverage (AOC) is introduced as a parameter to describe the observation space. In fact, AOC reflects the...

In order to settle the problem of time and frequency synchronization of Mobile Multistatic Radar System (MMSRS), an algorithm that combines pseudo-noise (PN) code ranging and dynamic fine phase shift capability of Digital Clock Manager (DCM) module in FPGA is proposed to realize accurate synchronized...

In this paper,we propose two discrete particle swarm optimization algorithms to solve a prize-collecting call control problem on lines based on the classical particle swarm optimization algorithm. The two algorithms combine simulated annealing and genetical methods with particle swarm optimization respectively....

Delay Tolerant Network (DTN) is a kind of wireless network with limited resources and often occurs congestion. The effective cache management can make full use of the network resources and reduce the network congestion. Therefore, aiming at the deficiency of the current research of cache management,...

Opportunistic networks is a kind of self-organizing networks which does not need the complete communication paths between the source node and the destination node. They transfer messages through communication opportunities arising from nodes movement. Because the message transmission opportunity depends...

It is generally demanded for strict frequency estimation of sinusoidal signal in a good many engineering practice situations. This paper puts forward an iterative frequency estimation algorithm on strength of the interpolation of Fourier coefficients of weighted samples. The algorithm is practically...

In the operation process of the toll road industry, compared to cash flow and logistics, information flow plays a more important role. It runs through every link of the industry value chain and provides guarantee and support for the increase of the additional value of value chain. From the perspective...