Performance Evaluation of IEEE 802 . 11 a , g Laboratory WPA 2 Point-to-Multipoint Links

The increasing importance of wireless communications, involving electronic devices, has been widely recognized. Performance is a crucial issue, leading to more reliable and efficient communications. Security is also critically important. Laboratory measurements were performed about several performance aspects of Wi-Fi (IEEE 802.11 a, g) WPA2 point-to-multipoint links. Our study contributes to the performance evaluation of this technology, using available equipments (DAP-1522 access points from D-Link and WPC600N adapters from Linksys). New detailed results are presented and discussed, namely at OSI levels 4 and 7, from TCP, UDP and FTP experiments: TCP throughput, jitter, percentage datagram loss and FTP transfer rate. Comparisons are made to corresponding results obtained for WPA2 point-to-point and Open point-to-multipoint links. Conclusions are drawn about the comparative performance of the links.