Πλοήγηση ανά Θέμα "Mobile users"
Αποτελέσματα 1-5 από 5
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Downlink multi-user transmission for higher user speeds in IEEE 802.16m
(2009)A dynamic resource allocation algorithm with beam steering is evaluated for providing broadband wireless access to mobile users of the emerging IEEE 802.16m air interface standard. Thanks to our design, the coverage area ... -
On the use of distributed directive antenna arrays in mobile OFDMA networks
(2011)Distributed Omni Antenna Systems (OASs) have been proposed to increase the capacity of Broadband Wireless Access (BWA) systems. We investigate the extension of such systems by employing distributed Directive Antenna Arrays ... -
Reputation-based internet sharing in wireless neighborhood community networks
(2010)This paper proposes easily applicable distributed reputation-based policies to motivate users of a wireless community to share their Internet connection in a p2p fashion. The goal is the provision of free and good quality ... -
A Survey on Mobile User Perceptions of Sensitive Data and Authentication Methods
(2020)The rapid evolution of mobile phone devices resulted in the conversion of a simple communication device to a complicated small portable computer offering a plethora of features and services. Sensitive data are now stored ... -
Uncertainty for anonymity and 2-dimensional range query distortion
(2010)In this work, we study the problem of anonymity-preserving data publishing in moving objects databases. In particular, the trajectory of a mobile user on the plane is no longer a polyline in a two-dimensional space, instead ...