A STUDY AND ANALYSIS OF SMART ANTENNAS FOR SOFTWARE RADIO ARCHICTURE IN WIRELESS COMMUNICATION APPLICATION

Abstract

Recently, there has been considerable interest in using antenna arrays in wireless communication networks to increase the capacity and decrease the co channel in reference. Adaptive beam forming with smart antennas at the receiver increases the carrier-to-interference ratio (CIR) in a wireless link. This paper considers a wireless network with beam forming capabilities at the receiver which allows two or more transmitters to share the same channel to communicate with the base station. The concrete computational complexity and algorithm structure of a base station are considered in terms of a software radio system model, initially with an Omni directional antenna. The software radio computational model is then expanded to characterize a network with smart antennas. The application of the software radio smart antenna is demonstrated through two examples. First, traffic improvement in a network with a smart antenna is considered, and the implementation of a hand-off algorithm in the software radio is presented.