Denial of Service (DoS) or Distributed Denial of Service (DDoS) is a powerful attack which prevents the system from providing services to its legitimate users. Several approaches exist to filter network-level attacks, but application-level attacks are harder to detect at the host base firewall. Filtering in application level can be computationally expensive and difficult to ...

A favorable technique is using directional antennas for high-speed wireless personal area networks and local. A new MAC protocol for wireless ad hoc networks which is referred to as New Deafness-Aware MAC (NDA-MAC) is proposed in this paper. There are many directional MAC protocols which have been proposed, but have not broadly solved the problem ...

Mobile Ad Hoc NETwork (MANET) is a collection of two or more devices, nodes or terminals with wireless communication and networking ability that can communicate with each other without the assistance of any centralized administrator, centralized control or established infrastructure. It’s called infrastructureless. A network can be formed dynamically by the wireless nodes to exchange ...

In this paper, system describe in MANET energy saving & security in data is an important issue in MANET. This can be solved by network coding which might reduce energy consumption also by using less transmission this system proposed data sharing using data encryption method. Encryption/decryption cost along with transmission time is factor of energy ...

In this paper, the authors present an algorithm for Residue Number System (RNS) implementation of RSA cryptography based on an existing RNS division algorithm. The proposed algorithm and that of the state of the art were written in C++ programming language to compare their efficiency with respect to execution time. Experimental results show that their ...

UWB antenna with a size of 52x40mm2 is presented along with four stubs and four planar monopole antenna elements. Stubs are added in the ground to increase isolation as well as to increase gain and bandwidth. Two ground connectors are added to form a ground plane. A gain is positive till 13GHz. The proposed antenna ...

Reconfigurable antennas play an important role in modern wireless communication systems, such as Personal Communications Service (PCS) and Wireless Local Area Network (WLAN). A varactor diode is placed on every slot to alter the current direction, which determines the polarization state. The influences of the slots and varactor diodes on antenna performance are minimized because ...

In this paper, the authors designed to prove that monopole plasma antenna is better than that of traditional metal antenna in terms of bandwidth, directivity, gain, radiation efficiency, VSWR and return losses. Mathematical model (Drude Lorentz model) of plasma antenna and traditional metal antennas are analyzed at two different resonant frequencies of 1GHz and 2.4GHz ...

In this system traffic data like videos, number of vehicles, type of vehicles, etc. is used to infer patterns of traffic and congestion. The traffic data collected is very huge (terabytes). Hence big data analysis is required for analysis of this data and to make some conclusions and develop a traffic management policy accordingly. With ...

Video and data is becoming the dominant traffic over the Internet. To provide better Quality of Service (QoS) to end users, it is important for network operators, content providers to optimize their transmission. In this paper, artificial intelligent optimization algorithms for video and data packets transmission over User Datagram Protocol (UDP) are presented. UDP is ...