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- A simulator of intelligent transportation systemsPublication . Figueiredo, Lino; Tenreiro Machado, J. A.; Almeida, Ana; Reis, CecíliaThis paper presents the most recent developments of the Simulator of Intelligent Transportation Systems (SITS). The SITS is based on a microscopic simulation approach to reproduce real traffic conditions in an urban or non-urban network. The program provides a detailed modelling of the traffic network, distinguishing between different types of vehicles and drivers and considering a wide range of net-work geometries. In order to analyse the quality of the microscopic traffic simulator SITS a benchmark test is per-formed.
- Transfering data from a server to an Android Mobile application: a case studyPublication . Anacleto, Ricardo; Figueiredo, Lino; Almeida, Ana; Novais, PauloNowadays, due to the incredible grow of the mobile devices market, when we want to implement a client-server applications we must consider mobile devices limitations. In this paper we discuss which can be the more reliable and fast way to exchange information between a server and an Android mobile application. This is an important issue because with a responsive application the user experience is more enjoyable. In this paper we present a study that test and evaluate two data transfer protocols, socket and HTTP, and three data serialization formats (XML, JSON and Protocol Buffers) using different environments and mobile devices to realize which is the most practical and fast to use.
- Creating and optimizing client-server applications on mobile devicesPublication . Anacleto, Ricardo; Luz, Nuno; Almeida, Ana; Figueiredo, Lino; Novais, PauloMobile devices are embedded systems with very limited capacities that need to be considered when developing a client-server application, mainly due to technical, ergonomic and economic implications to the mobile user. With the increasing popularity of mobile computing, many developers have faced problems due to low performance of devices. In this paper, we discuss how to optimize and create client-server applications for in wireless/mobile environments, presenting techniques to improve overall performance.