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- Extended Performance Research on IEEE 802.11 a WPA Multi-node Laboratory LinksPublication . Carvalho, José Pacheco De; Veiga, Hugo; Pacheco, Cláudia Ribeiro; Reis, AntónioWireless communications, involving electronic devices, 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 MbpsWPA links. Our study enriches performance evaluation of this technology, using accessible equipment (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 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.
- Investigações de Desempenho de Ligações Laboratoriais IEEE 802.11 APublication . Carvalho, José Pacheco De; Veiga, Hugo; Pacheco, Cláudia Ribeiro; Reis, AntónioA importância das comunicações sem fios, utilizando dispositivos electrónicos, tem sido mundialmente reconhecida. O desempenho é de importância fundamental, resultando em comunicações mais fiáveis e eficientes. A segurança é também crucial. São apresentadas medidas em laboratório sobre vários aspectos de desempenho de ligações Wi-Fi IEEE 802.11 a, 54 Mbps com encriptação WPA2 e topologias ponto-a-ponto e ponto-multiponto. O nosso estudo contribui para avaliação do desempenho desta tecnologia sob encriptação WPA2, usando equipamentos disponíveis (pontos de acesso HP V-M200 e adaptadores Linksys WPC600N). São apresentados novos resultados de experiências TCP e UDP, sobre throughput TCP em função do tamanho do pacote TCP, bem como jitter e percentagem de perda de datagramas em função do tamanho do datagrama UDP. São feitas comparações com resultados correspondentes de ligações Abertas. São obtidas conclusões, em particular sobre o desempenho comparativo das ligações.
- Extended Performance Research on IEEE 802.11a 54 Mbps Multi-Node Laboratory LinksPublication . Carvalho, José Pacheco de; Veiga, Hugo; Pacheco, Cláudia Ribeiro; Reis, AntónioWireless communications, involving electronic devices, are increasingly important Performance is a fundamental issue, leading to more reliable and efficient communications. Security is also most 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 given, 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 point-to-point, point-to-multipoint and four-node point-to-multipoint links. Conclusions are drawn about performance of the links. © 2018, International Association of Engineers.
- 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 IEEE 802.11a 54 Mbps WEP Laboratory LinksPublication . Carvalho, José Pacheco de; Pacheco, Cláudia Ribeiro; Veiga, Hugo; Reis, AntónioThe 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 WEP 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 point-to-point and four-node point-to-multipoint links. Conclusions are drawn about performance of the links.
- 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 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.
- Performance Evaluation of IEEE 802.11a 54 Mbps WEP 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 WEP point-to-point and point-to-multipoint links. Our study contributes to performance evaluation of this technology under WEP 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.