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Dynamic graph software watermarking has become the focus of attention both in the academia and industries. In this paper we improve the IPPCT structure (Improved Planted Plane Cubic Trees) which is based on the Radix-k circular linked list structure and PPCT structure. This further improvement takes advantage of all nodes in PPCT tree to encode so as to enhance the data rate at the same time. In order...
In this paper, we propose an efficient scheme to construct LT codes that can provide unequal error protection (UEP) property. We implement low rate LDPC codes instead of the duplication and utilize a low constant average degree distribution with high intermediate symbol recovery rates (ISRR) to improve the performance of more important bits (MIB). Asymptotic analysis of the proposed scheme is obtained...
Currently, cellular networks are evolving towards providing high quality mobile services in a ubiquitous manner. In this direction, increased robustness is required to face fluctuations at the service quality that follow traffic demanding events, such as an earthquake or a blackout. Dealing with this challenge, we propose a cross-layer scheme, which handles the traffic changes by adjusting dynamically...
In spite of recent progress of the wireless communication technology, the high bit error rate always restrains its better transmission efficiency. Especially, the errors in protocol header would incur the discard of valid information in the check-failure packets. In order to improve the utilization of transmitted data, an iterative header recovery scheme between two associated layers is proposed in...
This paper proposes an audio watermarking method based on dynamic phase coding and error control coding. The technique of quantization index modulation is employed for embedding watermarks into the phase spectrum of audio signals. Since most of the audio information is distributed in moderately low frequencies, to increase robustness, this frequency region is chosen for embedding watermarks. Phase...
The aim of this work is to introduce a novel tag design enhancing the coding efficiency for the Frequency Coded (FC) chipless RFID system. The proposed approach relies on exploiting the backscattered co/cross-polarized signals from a tag excited with a linear-polarized wave. Consequently, the tag signature is encoded into Notch/Peak (N/P) format in two orthogonal planes. Furthermore, the introduced...
This paper presents a new degree distribution based on power law so that LT code can perform well. Here, we have simulated our proposed degree distribution and have compared this distribution with robust soliton, binomial, pareto and parabolic distributions. Simulation result shows that this proposed degree distribution outperforms compared to other distribution techniques in terms of message length...
Recently, local sparse representation (LSR) has been successfully applied in visual tracking, owing to its discriminative nature and robustness against local noise and occlusions. It is note worthy that local sparse codes computed with a template form a 3-order tensor of their original layout, although most pooling operators convert it to a vector by concatenating or computing statistics on it. As...
Visual features of images and video frames have become pervasive and maturely developed in extensive research fields such as computer vision and visual search. For realtime retrieval applications, the compact visual features should be transmitted and stored at server side in cloud. These local feature descriptors are characterized by the invariance properties for the variances caused by camera motion,...
This paper addresses the challenge of reliably capturing the temporal characteristics of local space-time patterns in dynamic texture (DT). A powerful DT descriptor is proposed, which enjoys strong robustness to viewpoint changes, illumination changes, and video deformation. Observing that local DT patterns are spatial-temporally distributed with stationary irregularities, we proposed to characterize...
We give a complete characterization of the secrecy capacity of arbitrarily varying wiretap channels (AVWCs) with correlated random coding under a strong secrecy criterion where the eavesdropper may also know the correlated randomness. We obtain that the correlated random coding secrecy capacity is continuous as a function of the AVWC. We show that the deterministic coding secrecy capacity of the AVWC...
A well-known technique in assessing probabilities of rare events (used, e.g., in the sphere-packing bound), is that of finding a reference measure under which the event of interest has probability of order one and estimating the probability in question using the Kullback-Leibler divergence (KLD). A recent method has been proposed [2], that can be viewed as an extension of this idea in which the probability...
This paper investigates polynomial remainder codes with non-pairwise coprime moduli. We first propose a robust reconstruction for polynomials from erroneous residues when the degrees of all residue errors are small, namely robust Chinese Remainder Theorem (CRT) for polynomials. It basically says that a polynomial can be reconstructed from erroneous residues such that the degree of the reconstruction...
Proportional-integral-derivative (PID) controller is a vastly used control algorithm for many real-time control applications and among many types of PID controller, FPGA based PID controller is one of the effective one. This paper is based on design and implementation of a FPGA based system for a modified C-Type PID control system algorithm. The modified C-Type algorithm is used to attain a stable...
A novel audio watermarking method to assails is proposed in this paper. The method uses up dissimilar sequences for watermarking of audio signals. Embedding of watermarks is done by hiding under echo, spreaded in time. The amplitude of echo is trimmed down on spreading the echo in time. By this the energy of each echo goes low due to which any distortion caused by watermarking is unperceivable to...
Erasure codes are widely used in modern distributed storage systems to prevent data loss and server failures. Regenerating codes are a class of erasure codes that trades storage efficiency and computation for repair bandwidth reduction. However, their non-unified coding parameters and huge computation overhead prohibit their applications. Hence, we first propose a family of Functional Regenerating...
We introduce a novel RGB-D descriptor called local ordinal intensity and normal descriptor (LOIND) with the integration of texture information in RGB image and geometric information in depth image. We implement the descriptor with a 3-D histogram supported by orders of intensities and angles between normal vectors, in addition with the spatial sub-divisions. The former ordering information which is...
Wireless technology for communication, represents a permanent and evolutionary need in transport field, motivated by the improvement of the efficiency and safety of transports.
Fountain codes are linear codes with low complexities. LT (Luby Transform) codes, which are a special class of Fountain codes, are widely used in Wireless Sensor Networks (WSNs) to increase the robustness of data storage and efficiency of data retrieval. In this paper, we propose a novel LT codes based Distributed Coding (LTDC) scheme for efficient distributed storage in WSNs. In the proposed LTDC...
In this paper, we propose a robust double row layout problem (RDRLP), where the material flow between any two machines may vary in different periods. A MOEA/D based solution approach is proposed to solve it. First, MOEA/D is used to find a collection of non-dominated machine sequences. Then, for each found machine sequence, MOEA/D is used to produce a set of non-dominated solutions. Finally, the final...
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