International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 04 Issue: 08 | Aug -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 1795 Comparison between Conventional Network and ANN with Case Study Souvik Paul 1 , Digbijay Guha 2 , Atrayee Chatterjee 3, Samarth Metha 4, Ayushi Shah 5 1,2 Assistant Professor, BCA Department of The Heritage Academy, West Bengal, India 3 Lecturer, BCA Department of The Heritage Academy, West Bengal, India 4, 5 Student, BCA Department of The Heritage Academy, West Bengal, India ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract – Ad-Hoc Networks are inherently self-forming, self-arranging and their nodes are free to move arbitrarily and organize themselves at random. Router is a networking device that sends messages or data packets between computer networks. Network Bridge is a computer networking device which makes a single combined network from multiple communication networks or network segments. Repeater is an electronic device which receives a signal and retransmits it. Artificial Neural Networks are computing systems inspired by the Biological Neural Networks that constitute animal brains. This paper aims at achieving a comparative study among Artificial Neural Network, Ad-Hoc Networks, Router, Bridge, and Repeater. On the basis of that a case study is generated to test the validation of these. Key Words: Artificial Neural Network, Ad-Hoc Network, Router, Bridge, Repeater 1. INTRODUCTION Ad-Hoc Wireless Networks are inherently self-forming, self- arranging and self-administering. The nodes are free to move arbitrarily and organize themselves at random. The biggest challenge in these kinds of networks is finding the path between the communication end points of nodes that are movable. Because of restricted transmission range of wireless interfaces, the communication traffic has to be extended over a number of intermediate nodes to facilitate the communication between two nodes. Thus, these kinds of networks are also called as multi-hop ad-hoc networks. Every node acts as both, a host and as a router. The rapid development in ad hoc technology is widely used in portable computing such as laptop, mobile phone used to access the web services, telephone calls when the user are in travelling. Development of self-organizing network decreases the communication cost. The growth of 4G technologies enhances anytime, anywhere, anyhow communication in ad hoc network. Ad hoc network is simple to design and install. The ad hoc networks are self-forming, self-maintaining, self- healing architecture. The challenges are, no fixed access point, dynamic network topology, contrary environment and irregular connectivity. Ad hoc network immediately forms and accommodate the modification and limited power. The limitation associated with wireless devices is the power constraint of the nodes i.e. each node has only limited battery power which should be used judiciously for the node to survive longer. The principle behind ad hoc network is multi- hop relaying. The use of ad hoc voice communication was used in many ancient/tribal societies with the help of a string of repeaters of drums, trumpets, or horns. The security issue in ad hoc network is dynamic topology, bandwidth, small device size and limited battery life. Due to the dynamic nature, it is difficult to maintain secured transmission in the network (Papadimitratos and Haas, 2002). The ad hoc network does not depend on any pre- existing infrastructure so that the node can leave and join the network in such a situation where security may fall down. Two types of attack occur in ad hoc network, first is passive attack, this attack does not change the transmitted data in the network. But, it can allow unauthorized user to discover the message. Second, is active attack, it is a severe attack and prevents the message flow between the node in the network. It may allow the unauthorized user to modify the message. Dropped packet, battery drained, bandwidth consumption, unreliable packets, delay, connection break and false routing can identify the malicious node. With the increased number of lightweight devices as well as evolution in wireless communication, the ad hoc networking technology is gaining effort with the increasing number of widespread applications. Ad hoc networking can be used anytime, anywhere with limited or no communication infrastructure. The preceding infrastructure is fancy or annoying to use. The ad hoc network architecture can be used in real time business applications, corporate companies to increase the productivity and profit. The ad hoc networks can be classified according to their application as Mobile Ad hoc Network (MANET) that is a self- arranging infrastructure less network of mobile devices communicated through wireless link. Vehicular Ad hoc Network (VANET) uses travelling cars as nodes in a network to create a mobile network. Wireless Sensor Network (WSN) consists of autonomous sensors to control the environmental actions. The importance of ad hoc network has been highlighted in many fields which are described below:  Military Arena: An ad hoc networking will allow the military battleground to maintain an information