Wireless communication

Wireless communication

ABSTRACT

Wireless communications are being driven by the need for providing network access to mobile or nomadic computing devices. The need for wireless access to a network is evident in current work environments. The wireless technologies are an active area of research and applications. These technologies of wireless networking may save you from physical hassle connecting computer hardware but with consideration of standards, installation and security. Combine wireless “anything“ with the daily activities and challenges of your business and understand the difficulties that have to be faced every day. In this paper, different wireless technologies like Bluetooth, Wi Fi etc are discussed .They have become the focus of great attention by both businessmen and consumer users with advent of low cost, efficient and high speed data transmission.
Future wireless networks are projected to integrate not only the services (to provide multimedia), but also encompass an integration of technologies. The technology integration has two aspects, namely, the integration of the same technology from different parts of the world, and secondly, the integration of different technologies in the same country. Future generations of wireless communication systems, such as fourth generation (4G) mobile communication systems, broadband wireless access networks are expected to provide a wide variety of services (e.g. multimedia, broadcasting, etc.) through reliable high data rate wireless channels. The high data rate wireless channel can be obtained with wide signal bandwidth in high frequency bands such as microwave ka-band and millimeter wave. Recently smart antennas have been proposed as a promising solution that can significantly increase the data rate and improve the quality of wireless transmission which is limited by interference, local scattering, and multipath propagation.