Estudo da tecnologia das antenas inteligentes

Abstract

This work aims to study and analyze the performance of the currently technologies used in the data transmission for mobile devices and compare it with the Smart Antennas technology that is identified as a key technology to increase communication capability and quality in wireless networks. The technology behind the Smart Antennas is still incipient, being similar to the used in military radar systems. The experiments conducted in this paper evaluated the transmission of wireless devices in indoor and outdoor environments. There were used four devices, two of which use traditional technologies and two that use the technologies of Smart Antennas. During tests were evaluated the metrics, throughput, jitter, number of clients supported by each Access Point (AP), number of packets transmitted and the number of lost packets. The tests were conducted at the Federal University of Lavras (UFLA), and the software Iperft was used to perform the experiments in order to evaluate the data transfer performance using the TCP and UDP protocols. The results prove the performance of the Smart Antennas Technology, and still present the benefits that this new technology can bring to the data transmission in wireless networks. The Smart Antennas usage showed a significant improvement in the data transmission quality, as well as, support to a larger number of customers when compared to the currently AP technology.