Cons • Security issues: Wireless networks are more difficult to secure than wired local networks. As a result, they are exposed to attack by unauthorized users. If did not secure the connection properly, an individual could access the network from a location near the area using scanning software to identify available networks. All of your important information could be uncovered in this situation. • Installation difficulties: Wireless networks are so commonly used, therefore if there are many wireless networks set up in your building, you will find that it will interfere with your wireless signal.
The newer GSM networks are replacing the older system. Wireless Ad Hoc Networks A Wireless ad hoc network (WANET) or Mobile ad hoc network (MANET) is a decentralized type of wireless network. The network is ad hoc because it does not rely on a pre-existing infrastructure, such as routers in wired networks or access points in managed (infrastructure) wireless networks. Instead, each node participates in routing by forwarding data for other nodes, so the determination of which nodes forward data is made dynamically on the basis of network connectivity and the routing algorithm in use. Wireless mobile ad hoc networks are self-configuring, dynamic networks in which nodes are free to move.
This paper presents a study of benefits of artificial noise generation based on wireless communication to improve the security of messages transmitted through wireless channel which is vulnerable to eavesdropper. Artificial noise generation: The secure transmission of information in wireless networks without knowledge of eavesdropper channels or locations is considered. Two key mechanisms are employed: artificial noise generation from system nodes other than the transmitter and receiver, and a form of multi-user diversity that allows message reception in the presence of the artificial noise. We determine the maximum number of independently-operating and uniformly distributed eavesdroppers that can be present while the desired secrecy is achieved with high probability in the limit of a large number of system
Confidential information can include an individual 's personal information, classified materials with national security implications and commercial intellectual property (Kim & Solomon, 2016). In the US, there are laws that protect confidential information and IT systems. These legislations require businesses and organizations to have security control mechanisms that protect the confidentiality of sensitive information. Safeguarding data confidentiality is not always easy as technological advances also provide means of easily accessing information from remote locations and making it accessible to many people (Dhillon & Backhouse, 2000). This is despite the numerous technologies that have been designed to protect sensitive data.
Impact of wireless communications on human society Kelland Chew Jiaxing U1321665F L2 KCHEW002@E.NTU.EDU.SG Abstract Aim – To research the impact of wireless communications on society Objectives – To demonstrate the benefits of developing wireless communication technologies Background – Wireless communication technology has forever changed how we communicate and we are no longer tethered by a cable when we wish to communicate. Results – Wireless communication advancements are still crucial to the development of human society and how we communicate. Conclusion – While there may be an unlinked increase in cases of illness related to wireless technologies, the benefits heavily outweigh the cons. Introduction I have chosen to undertake this particular
In defense organization, the electromagnetic radiations emitted by computers and other electronic device could be picked up by the opponent and they may get access to the most sensitive information of the country such as war plans, and other information about the nation this could be a great danger to the security of the country. In datacenters lot of servers are there and are communicating with each other. The servers emit electromagnetic signals. These signals are vulnerable to information leakage. b) Explain and discuss the threats related to electromagnetic security to the national network and how they can be exploited by the adversaries.
THREATS FACED BY MOBILE DEVICES Mobile devices are susceptible to attacks because of the sensitivity of the data stores and its mobility nature. The mobility exposes mobile devices to theft of the device as well as data that is more often than not unsecured. Data can be sniffed in any insecure wireless connections or through malicious application installed. Stealing of data exposes the user to legal actions, disclosure of private information to the public and the general data loss. Some malware can result into damaging the device operating system or opening up a window for attacks from the sources such changing the device security settings.
1.1 ADVANCEMENT IN WIRELESS COMMUNICATION At present communication technologies have turn into an extremely essential fraction of person existence. Wireless communication systems have release new magnitude in communications. Wireless communication provides assure of portability, mobility, and accessibility. Even though wired communication carries more stability, superior presentation, and superior dependability, it arrives with the requirement of organism limited to a confident position or a enclosed surroundings. Accordingly, customers employ wireless systems much frequently.
1. INTRODUCTION 1.1 General introduction: A wireless network is a flexible data communications system, which uses wireless media such as radio frequency technology to transmit and receive data over the air, minimizing the need for wired connections (What is Wireless LAN, White Paper). Wireless networks are used to augment rather than replace wired networks and are most commonly used to provide last few stages of connectivity between a mobile user and a wired network. Wireless networks use electromagnetic waves to communicate information from one point to another without relying on any physical connection. Radio waves are often referred to as radio carriers because they simply perform the function of delivering energy to a remote receiver.
The core of this lifestyle lies in the extensive use of wireless cables and benefits derived thereof. Current research is an attempt to explore the fast moving world from a customer and comfort/ ease of use view point. Change is inevitable but how is the customer