The identification and association of multiple identities in different online social networks (osns) is an important problem, and also is the basis for many applications. At present, most of technologies try to solve this problem by matching the username of social networks or calculating the similarity...

In this paper, a research on radio frequency identification (RFID) tag for body wearable is presented. Performances of tag and antenna are mainly focused on with the tag patched on human body. Results are available from simulation and measurement to reflect the change of wearable tag performance. A human...

In this paper, a novel method is constructed to estimate the time delay. The purpose of this article is to deal with the lack of measurement data in small sample (single snapshot) and low signal to noise ratio environment during wireless location. First, the sparse representation model of received signals...

Spectrum sensing is an essential part for cognitive radio which is used for directly or indirectly estimating the states of primary users (PUs) to find spectrum holes for second users (SUs). Nowadays, some online spectrum sensing algorithms have been proposed but most of them ignore the time complexity...

Probability and statistics have been proved to be strong and useful tools for recovering the topological properties in complex systems and networks all over the world. We recall the process of studying complex systems in the past decades and propose general evolution equation about the dynamical function...

Wireless Sensor Network(WSN) is widely used in Emergency Management System(EMS) to assure requirement of safety in current society. When emergency appears, real-timely transmitting emergency information should be assured. But this requirement can not be satisfied by conventional approaches which are...

The self-interference to noise ratio in digital domain decreases as the amount of RF self-interference cancellation increases in full-duplex (FD) communications. The amount of digital self-interference cancellation decreases as the self-interference power in digital domain decreases. The impact of the...

This paper proposes a new direction-of-arrival (DOA) estimation algorithm, which is suitable for the scenario that the number of sensors is large, and is comparable with the number of samples in magnitude. Instead of utilizing classical subspace technique, sparse-recovery-based approach with log penalty...

The application of agricultural greenhouses is more and more extensive, while the air temperature and humidity and other environmental factors in greenhouses need to be regulated carefully by people as yet. This article designed a monitoring and control system for greenhouses to adjust the factors automatically,...

The algorithm of smoothing pseudo-range with carrier phase and its application to the dual ranging and time synchronization (DRTS) system are introduced. The calculation and analyses of the measured data show that the application of the algorithm of smoothing pseudo-range with carrier phase to the DRTS...

Using the Windows RDP protocol developed by Microsoft Inc to connect and operate the remote machines which base on the same system become a trend. However, the RDP has caused many security problems. It is necessary to design and implement a audit system to ensure the system's security and guarantee the...

This paper presents a novel variable-gain inductorless transimpedance amplifier (TIA) design using Global Foundries 0.18-æm CMOS technology which is suitable for high speed optical communication. A modified-RGC (M-RGC) preamplifier stage is used to reduce the input impedance through cascode and parallel...

A cross-coupled GaAs pseudomorphic high electron mobility transistor (pHEMT) based Ka-band voltage-controlled oscillator (VCO) is reported in this work, by using commercial OMMIC 0.13 m depletion-mode power pHEMT (D01PH) process. The simulation of the proposed VCO demonstrates an operating frequency...

With the characteristics of narrow scanning beam and high spatial resolution, sparse array becames a research hotspot. However, it can produce higher side lobes which leads to the information leakage easily. A physical layer secure transmission method based on sparse array was proposed in this paper...

Providing reliable broadband satellite communications in high mobility environments has attracted considerable attentions in the past few years. One of the biggest challenges is caused by the large Doppler frequency shift due to the rapid relative motion between the transmitters and receivers. The shift,...

In this paper, a new design algorithm is presented for paraunitary filter banks with extended filter length. Equal-length filter banks are designed where the filter length is not restricted to integral multiples of the number of channels. Filter banks with unequal length are also studied. In the new...

To solve the transmission problemof physical layer security(PLS) in relay cognitive radio network (CRN), this paper investigates the PLS transmission scheme of multiple relays CRN, which contains two pairs of secondary nodes without direct link each other. Compared with the model that consists ofa pair...

In this paper, a broadband dual-polarization slot antenna based on differential-feed at X band is proposed. By adopting wide round slots, the antenna inherits a good advantage of broad band. And the multi-layer structure achieves a good isolation between the two ports. In order to improve the high cross...

Antenna array with adaptive beam forming technique is an effect way for GPS receiver to suppress the ambient interference, which, however, would be malfunctioning due to the saturation problem in radio frequency (RF) front or intermediate frequency (IF) front caused by the strong interference. To tackle...

Synthetic basis functions method(SBFM) is introduced to analyze the electromagnetic properties of large periodic arrays. Compared with the traditional method of moment (MoM), SBFM uses fewer high order basis functions which significantly reduces the number of unknowns, contributing to higher efficiency...

This paper prosposes an integration research to apply advanced communication technology in quality testing, including three aspects: integration of inspection function based on equipment, integration of inspection equipment based on interface communication, and integration of inspection unit based on...

In this paper, a wideband dual-polarized stacked patch antenna at S-band with high port isolation is presented. By adopting the structure of H-shaped coupling slots placed in "T" configuration, the proposed antenna achieves dual polarizations and high port isolation, and the impedance bandwidth is significantly...

Individual Trajectory is the foundation of traveling behavior analysis. Cellular network data contains sufficient spatio-temporal information, which is widely used for trajectory analysis nowadays. However, we found in practice that most of the users' records are incomplete and fragmented. This is because...