Antonio D. Reis

Learn More
Wireless communications have been increasingly important. Besides Wi-Fi, FSO plays a very relevant technological role in this context. Performance is essential, resulting in more reliable and efficient communications. A FSO medium range link has been successfully implemented for high requirement applications at Gbps. An experimental performance evaluation(More)
Wireless communications using microwaves are increasingly important, e.g. Wi-Fi. Performance is a fundamental issue, resulting in more reliable and efficient communications. Laboratory measurements are made about several performance aspects of Wi-Fi (IEEE 802.11b, g) WEP point-to-point links using available access points from Enterasys Networks (RBTR2).(More)
Wireless communications using microwaves are increasingly important, e.g. Wi-Fi. Performance is a very relevant issue, resulting in more reliable and efficient communications. Laboratory measurements are made about several performance aspects of Wi-Fi (IEEE 802.11a, g) WEP point-to-point links using available access points from Enterasys Networks(More)
This work studies the asynchronous sequential symbol synchronizers based on pulse comparison by both transitions at half bit rate. Their performance will be compared with the reference asynchronous symbol synchronizers based on pulse comparison by both transitions at bit rate. For the reference and proposed variants, we consider two versions which are the(More)
The importance of wireless communications, involving electronic devices, has been growing. Performance is a very relevant issue, leading to more reliable and efficient communications. Laboratory measurements are made about several performance aspects of Wi-Fi (IEEE 802.11 a, g) WEP point-to-point links. A contribution is given to performance evaluation of(More)
Wireless communications using microwaves are increasingly important, e.g. Wi-Fi. Performance is a very important issue, resulting in more reliable and efficient communications. Security is equally very important. Laboratory measurements are made about several performance aspects of Wi-Fi IEEE 802.11g WPA point-to-point links. A contribution is given to(More)
This work presents the asynchronous sequential symbol synchronizers based on pulse comparison by positive transitions at half bit rate. Their performance will be compared with the reference asynchronous symbol synchronizers based on pulse comparison by both transitions at bit rate. For the reference and proposed variants, we consider two versions which are(More)