Abstract: In this paper, two recursion formulae of chromatic polynomial of a maximal planar graph G are obtained: when δ(G)=4, let Wν4 be a 4-wheel of G with wheel-center ν and wheel-cycle ν1ν2ν3ν4ν1, then $f(G,4)=f((G,4)\...
Abstract: The end-to-end bandwidth, the Round Trip Time (RTT) and the packet loss rate vary over many orders of magnitude in Internet, which cause significant performance degradation of Transmission Control Protocol (TCP). To cope with this, a path-adaptive TC...
Abstract: To solve the limited storage resource and the data storage reliability problem of Space Information Network (SIN), a novel Distributed Storage Strategy based on Luby Transform (LT) codes (DSSLT) is proposed. According to the proposed strategy, source...
Abstract: Influence maximization is an optimization issue of finding a subset of nodes under a given diffusion model, which can maximize the spread of influence. This optimization issue has been proved to be NP-hard. Leveraging the fact that vertices in minimu...
Abstract: Existing trust models can not effectively express the uncertainty of trust relationship and deal with such issues as dishonest feedbacks and strategic frauds from malicious entities in the distributed network, an adaptive trust model based on aggrega...
Abstract: Uncertain factors are a common phenomenon in the real world; therefore, it is very meaningful to study on the trusted neighbor query under uncertain network conditions. This paper puts forwards a new solution. The uncertain network is modeled as unce...
Abstract: MIBS is a light weight block cipher for constrained resources environments such as RFID tags and sensor networks. This paper investigates the construction of zero-correlation linear approximations of 8-round MIBS and presents an attack on 13-round MI...
Abstract: This paper builds a performance model of multicore processor, which applies to the crypto algorithms, and some advisable suggestions and academic supports are given for its design. By introducing parallelism degree, transformation overhead and synchr...
Abstract: In view of the small hiding capacity, low concealment and poor robustness of the audio carrier, a novel audio information hiding algorithm is proposed based on wavelet transform. The algorithm regulates the high-frequency wavelet coefficients in ever...
Abstract: In this paper, a green communication scheme based on physical layer security is addressed considering the energy and secrecy constraints. This scheme maximizes the secure Energy Efficiency (EE) of the network by power allocation subject to the maximu...
Abstract: This paper presents the 13-round impossible differential cryptanalysis on MIBS-80 for the first time. Firstly, this paper filters the plaintexts based on the impossible differentia of S-box in MIBS-80. Secondly, by taking advantage of the restrict re...
Abstract: The Base Station (BS) selection for distributed massive MIMO system is studied. The channels between the BSs and the users are assumed to be Rician fading. First the closed-form expressions of downlink achievable rates for Matched-Filter (MF) and Zer...
Abstract: A new modulation recognition algorithm of digital communication signals based on the multi-fractal dimension characteristics is proposed. Employing preprocessing the received signal, the generalized dimension and the multi-fractal spectrum can be cal...
Abstract: Directional Modulation (DM) technique is a hot research area for physical layer security communication in recent years. The baseband modulation signal is synthesized at the antenna level for transmitting different signal constellations at different d...
Abstract: Physical-layer Network Coding (PNC) with Continuous Phase Modulation (CPM) attractes much attention due to its high efficiency in the throughput and the spectrum. Most present research on the detection of CPM-PNC signals is based on the assumption th...
Abstract: In single-carrier modulation system with frequency domain equalization, Decision Feedback Equalizer with a Hybrid time-frequency structure (H-DFE) is attractive for its performance; the complexity is also significant, especially for very dispersive c...
Abstract: Traffic split provisioning scheme leads to extra guard band and equipment ports occupation, which decreases the spectrum utilization and increases the energy consumption for elastic optical networks. To address the problem, a spectrum-aware traffic s...
Abstract: Jamming resource distribution of cooperative identification friend or foe via secondary radar is researched by introducing Discrete Cuckoo Search (DCS) algorithm. The jamming effect evaluation rules and indexes are given, and the aim function and dis...
Abstract: In the case that the jammer platform rotates or is pointed in all different directions for radar detcting, the tolerance analysis is made between the conventional retrodirective cross-eye and the orthogonal four jamming elements. In the analysis proc...
Abstract: According to the characteristic of navigation receiver in the missile, the anti-jamming model of high dynamic conditions is built. Taking into account the characteristic of interferences in high dynamic conditions and the shortcomings of traditional ...
Abstract: This paper aims at the issue of accelerating moving target parameter estimation and imaging. The SAR echo spectrum of target with acceleration is calculated, and the necessity of estimation and compensation of the three-order moving target echo phase...
Abstract: Orthogonal Frequency Division-Linear Frequency Modulation (OFD-LFM) signal is widely used in Multiple Input Multiple Output (MIMO) radar systems. For solving the problems of the auto-correlation sidelobes of the spatial synthesized signals, an analys...
Abstract: The matrix CFAR detector is proposed according to information geometry theory, but its constant false alarm property is not analysed, and the matrix CFARs detection performance still needs to be improved. Firstly, the matrix CFARs constant false alar...
Abstract: Bistatic forward looking low frequency Ultra Wide Band (UWB) Synthetic Aperture Radar (SAR) has both complicated imaging geometry and strong range-azimuth coupling, which increases the difficulty of high-precision imaging extremely. In order to solve...
Abstract: To identify the out-of-database targets in the process of radar ground target recognition with High Resolution Range Profile (HRRP), this paper proposes an improved radar ground target identifier based on the distribution of the space of training fea...
Abstract: To resolve the conflict between the amount of image data and the channel bandwidth, a Region Of Interest (ROI) coding method based on JPEG2000 is proposed in this paper. The mainstream methods for JPEG2000 ROI coding have a difficulty in balancing RO...
Abstract: As a conventional unit in interferometric imager, correlator has a wide range of applications to get visibility functions. THz imager has more and more applied to security check and military scouting area. To solve the phase synchronization problem i...
Abstract: Interleaved thinned arrays sharing aperture based on the aperture ratio of reuse is an effective way to realize airborne multifunction. A new method to interleave thinned linear arrays is proposed in this paper based on the modified Iterative Fast Fo...
Abstract: When using Back Propagation (BP) neural network to recognize the spatial target, the high dimensional input features induce the complexity of the network structure and the poor performance of the recognition. In this paper, a new recognition method b...
Abstract: Coordinate Descent (CD) is a promising method for large scale pattern classification issues with straightforward operation and fast convergence speed. In this paper, inspired by v-soft margin Support Vector Machine (v-SVM) for pattern classification,...
Abstract: In order to solve the problem of lack of discriminability in thel1-norm constraint sparse representation, visual tracking via locality-sensitive kernel sparse representation is proposed. To improve the linear discriminable power, the candidates Scale...
Abstract: Frequency Diverse Array (FDA) radar is a new radar technique proposed in recent years. FDA uses a small frequency increments across its array elements to provide a range-dependent transmit beampattern, which overcomes the disadvantages of a phased-ar...
Abstract: A low Radar Cross Section (RCS) and broadband Magneto-Electric (ME) dipole patch antenna from 7.81 GHz to 13.65 GHz covering the whole X band is designed and fabricated. Metal patches printed on the substrate form the electric dipoles, three metallic...