Carvalho, José Pacheco dePacheco, Cláudia RibeiroVeiga, Hugo2019-10-282019-10-2820192603-3259http://hdl.handle.net/10400.6/7415The importance of wireless communications, involving electronic devices, has been widely recognized.Performance is a fundamental issue, resulting in more reliable and efficient communications. Security is also critically important. Laboratory measurements were performed about several performance aspects of Wi-Fi IEEE 802.11a 54 Mbps WPA links. Our study contributes to performance evaluation of this technology, using available equipments (HP V-M200 access points and Linksys WPC600N adapters). New results are presented and discussed, namely at OSI level 4, from TCP and UDP experiments. TCP throughput is measured versus TCP packet length. Jitter and percentage datagram loss are measured versus UDP datagram size. Results are compared for both pointto point and four-node point-to-multipoint links. Conclusions are drawn about performance of the links.engIEEE 802.11aMulti-Node WPA LinksTCP packet sizeUDP datagram sizeWi-FiWLAN Laboratory Performanceconference object