In this paper, echo cancellation is done using genetic algorithm (GA). The genetic algorithm is implemented by two kinds of crossovers; heuristic and microbial. A new procedure is proposed to estimate the coefficients of adaptive filters used in echo cancellation with combination of the GA with Least-Mean-Square (LMS) method. The results are compared for various values of LMS step size and diff...

There exist several trials to describe chaos appeared in classical or quantum dynamical systems [?]. One of the present authors introduced Information Dynamics(ID for short) [18] as a frame to discuss complexity and chaos appeared in various fields, in which he tried to find a common basis by synthesizing the state change (dynamics) and the complexity associated with dynamical systems. Since th...

In this paper we compare two techniques applied to the estimation of discrete-time one-dimensional chaotic orbits: the maximum likelihood estimation and the modified Viterbi algorithm. As the second one performs better, it is used in two digital modulation schemes based on identification of chaos generator maps: the Modified Maximum Likelihood Chaos Shift Keying using one and two maps. Both hav...

This paper presents the design and implementation of a symmetrical hybrid based AES algorithm as a security enhancement for data transmission which is further improved by using chaos. This work outlines the possible weaknesses within the current AES encryption algorithm especially against algebraic based cryptanalysis. It proposes the idea on integrating AES within the Feistel network, hence re...

Aiming to the demand and characteristics of vehicle scheduling optimization problem in emergency rescue, this paper establishes a multi-objective optimization model, which takes minimizing variable bidirectional distance, path risk and cost as the optimization target. To avoid the prematurely falling into local optimization of ant colony system(ACS)algorithm, and to improve the algorithm adapta...

In MANET, the multicast routing is considered a non-deterministic polynomial (NP) complexity, it contains assorted objectives and restrictions. issue of quality services (QoS) based upon cost, delay, jitter, bandwidth, are constantly deemed as multi-objective for directing protocols (MR). Conversely, mobile node has finite battery energy lifetime network depends on its energy. Here, MR problem ...

This paper introduces a new Database Transposition, Substitution and XORing Algorithm (DTSXA) based on using chaotic maps. It is primarily two well-known security properties: confusion diffusion. A random number generator was depended to produce the keys for algorithm of encryption decryption. The Arabic language in addition English done, besides it can encrypt table, individual row column. sug...