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- Extended Performance Research on 5 GHz IEEE 802.11n WPA2 Laboratory LinksPublication . Carvalho, José Pacheco de; Veiga, Hugo; Pacheco, Cláudia Ribeiro; Reis, AntónioWireless communications by microwaves are increasingly important, e.g. Wi-Fi. Performance is a crucial issue, improving reliability and efficiency in communications. Security is also most important. Laboratory performance measurements are presented for Wi-Fi 5 GHz IEEE 802.11n WPA2 links. Our study contributes to performance evaluation of this technology under WPA2 encryption, using available equipments (HP V-M200 access points and Linksys WPC600N adapters). New results are given, namely for 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 point-to-point, point-to-multipoint and four-node point-to-multipoint links. Comparisons are also made to corresponding data obtained for Open links. Conclusions are drawn about performance of the links. © Springer Nature Singapore Pte. Ltd. 2019
- Performance Evaluation of IEEE 802.11a 54 Mbps WPA Laboratory LinksPublication . Carvalho, José Pacheco de; Veiga, Hugo; Pacheco, Cláudia Ribeiro; Reis, AntónioThe increasing 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 crucially important. Laboratory measurements are presented about several performance aspects of Wi-Fi IEEE 802.11a 54 Mbps WPA point-to-point and point-to-multipoint links. Our study contributes to performance evaluation of this technology under WPA encryption, using available equipments (HP V-M200 access points and Linksys WPC600N adapters). New results are given from TCP and UDP experiments concerning TCP throughput versus TCP packet length, jitter and percentage datagram loss versus UDP datagram size. Comparisons are made to corresponding results for Open links. Conclusions are drawn about the comparative performance of the links.
- Performance Evaluation of 5 GHz IEEE 802.11n WPA2 Laboratory LinksPublication . Carvalho, Jose Pacheco de; Veiga, Hugo; Pacheco, Cláudia Ribeiro; Reis, AntónioThe 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 802.11n WPA2 5 GHz links. Our study contributes to performance evaluation of this technology, using available equipments (HP V-M200 access points and Linksys WPC600N adapters). New detailed 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 point-to-point and point-to-multipoint links. Comparisons are also made to corresponding results obtained for Open links. Conclusions are drawn about performance of the links.
- A New Performance Determination of IEEE 802.11a 54 Mbps Open Laboratory LinksPublication . Carvalho, José Pacheco de; Pacheco, Cláudia Ribeiro; Veiga, Hugo; Reis, AntónioThe increasing importance of wireless communications, involving electronic devices, has been widely recognized. Performance is a fundamental 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 802.11a 54 Mbps Open links. Our study contributes to performance evaluation of this technology, using available equipments (HP V-M200 access points and Linksys WPC600N adapters). New detailed 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 point-to-point and four-node point-to-multipoint links. Conclusions are drawn about performance of the links.
- Extended Performance Research on IEEE 802.11a WPA2 Multi-Node Laboratory LinksPublication . Carvalho, Jose Pacheco De; Veiga, Hugo; Pacheco, Cláudia RibeiroWireless communications, involving electronicdevices, are increasingly important. Performance is a fundamental issue, leading to more reliable and efficient communications. Security is also, no doubt, most important. Laboratory measurements were achieved about several performance aspects of Wi-Fi IEEE 802.11a 54 Mbps WPA2 links. Our study enriches performance evaluation of this technology, using accessible equipments (HP V-M200 access points and Linksys WPC600N adapters). New accurate results are given, namely at OSI level 4, from TCP and UDP experiments. TCP throughput is measured against TCP packet length. Jitter and percentage datagram loss are evaluated versus UDP datagram size. Results are examined for point-to-point, point-to-multipoint and four-node point-to-multipoint links. Comparisons are also made mainly to related data obtained for Open links. Conclusions are extracted about performance of the links.
- Performance Assessment of Laboratory IEEE 802.11 n Point-to-Multipoint LinksPublication . Carvalho, José Pacheco de; Veiga, Hugo; Pacheco, Cláudia Ribeiro; Reis, AntónioWi-Fi based on 2.4 GHz has a large growing base of installed equipments, leading to higher interferences. Wireless communication techniques are very important in environmental contexts . Performance is a very important issue, resulting in more reliable and efficient communications. Laboratory measurements are made about several performance aspects of Wi-Fi IEEE 802.11n 5 GHz Open point-to-multipoint links. A contribution is given to performance evaluation of this technology, using available equipments (V-M200 access points from HP and WPC600N adapters from Linksys). Results are presented , namely at OSI levels 4 and 7, from TCP and UDP experiments, permitting measurements of TCP throughput versus TCP packet size, and jitter, percentage datagram loss versus UDP datagram size.
- Performance Investigations of IEEE 802.11 a 54 Mbps WPA2 Laboratory LinksPublication . Carvalho, José Pacheco De; Veiga, Hugo; Pacheco, Cláudia Ribeiro; Reis, AntónioThe increasing 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 crucially important. Laboratory measurements are presented about several performance aspects of Wi-Fi IEEE 802.11a 54 Mbps WPA2 point-to-point and four-node point-to-multipoint links. Our study contributes to performance evaluation of this technology under WPA2 encryption, using available equipments (HP VM200 access points and Linksys WPC600N adapters). New results are given from TCP and UDP experiments concerning TCP throughput versus TCP packet length, jitter and percentage datagram loss versus UDP datagram size. Comparisons are made to corresponding results for Open links. Conclusions are drawn about the comparative performance of the links.
- Extended performance research on open 5 GHZ IEEE 802.11N Laboratory LinksPublication . Carvalho, José Pacheco de; Veiga, Hugo; Pacheco, Cláudia Ribeiro; Reis, AntónioThe increasing importance of wireless communications, involving electronic devices, has been worldly recognized. Performance is a crucial issue, leading to more reliable and efficient communications. Security is also critically important. New laboratory experiments were performed about several performance aspects of Wi-Fi IEEE 802.11n Open 5 GHz links. Our study contributes to the performance evaluation of this technology, using available equipments (HP V-M200 access points and Linksys WPC600N adapters). New detailed results are presented and discussed, namely at OSI level 4, from TCP and UDP measurements. TCP throughput is measured versus TCP packet length. Jitter and percentage datagram loss are measured versus UDP datagram size. Data comparisons are made for point-to-point, point-to-multipoint and four-node point-to-multipoint links. Conclusions are drawn about performance of the links. © 2018 IEEE World Scientific Publishing Co. Pte. Ltd.
- A new performance assessment of 5 GHz IEEE 802.11n four-node point-to-multipoint linksPublication . Carvalho, José Pacheco de; Veiga, Hugo; Pacheco, Cláudia Ribeiro; Reis, AntónioThe performance of wireless communications is an essential point, leading to more trusty and efficacious communications. Security is also important. Laboratory experiments were performed on various performance points of Wi-Fi 5 GHz IEEE 802.11 n Open four-node point-to-multipoint links. Our study contributes to the performance assessment of this technology, utilizing accessible equipments (V-M200 access points from HP and WPC600N adapters from Linksys). New elaborated results are given and discussed, essentially at OSI levels 4 and 7, from TCP and UDP experiments: TCP throughput versus TCP packet size; jitter and percentage datagram loss versus UDP datagram size. Comparisons are made to correspondent results from Open point-to-point links. Conclusions are taken about the comparative performance of the links. © 2017 Institute of Measurement Science SAS.
- Extended research on effects of encryption and topology on performance of IEEE 802.11a laboratory linksPublication . Carvalho, José Pacheco de; Veiga, Hugo; Pacheco, Cláudia Ribeiro; Reis, AntónioThe increasing importance of wireless communications, involving electronic devices, has been worldly recognized. Performance is an essential 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 802.11a WPA2 and WPA point-to-multipoint links. Our study contributes to the performance evaluation of this technology, using available equipments (HP V-M200 access points and Linksys WPC600N adapters). New detailed results are presented and discussed, namely at OSI level 4, from TCP and UDP measurements: TCP throughput, jitter and percentage datagram loss. Comparisons are made to corresponding results obtained for WPA2 and WPA point-to-point, and Open links. Conclusions are drawn about the comparative performance of the links.