To achieve off-line delegation for mobile readers, we propose a delegation protocol for mobile RFID allowing its readers access to specific tags through back-end server. That is t...
This work presents a user position management system for Wi-Fi networks. The location system is based on access point coverage range and beacon devices. The implementation was mad...
Andrei Oliveira da Silva, Paulo Henrique de Souza ...
The increasing availability of information about people's context makes it possible to deploy context-sensitive services, where access to resources provided or managed by a s...
We propose a general framework to index very large datasets of spatial data in a distributed system. Our proposal is built on the recently proposed Scalable Distributed Rtree (SD-...
Distributed peer-to-peer systems rely on voluntary participation of peers to effectively manage a storage pool. In such systems, data is generally replicated for performance and a...
Ronaldo A. Ferreira, Murali Krishna Ramanathan, An...