Saulo Henrique da Mata

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Given the growing need for interoperability among various communication services (IP, PSTN, PLMN), ENUM technology has become fundamental to the development of VoIP services. Through modeling and simulation, this paper presents a performance study of the ENUM protocol considering the response time for E.164 numbers resolution which is an important(More)
ENUM is a protocol for mapping E.164 telephone numbers into Internet URIs. In this paper, we present a performance evaluation of ENUM name servers considering the new requirements and challenges imposed on traditional DNS servers with the incorporation of ENUM protocol. We defined three performance metrics for this performance evaluation: query throughput,(More)
The design of a scheduling algorithm for LTE networks is a complex task, and it has proven to be one of the main challenges for LTE systems. There are many issues to be addressed in order to obtain a high spectral efficiency and to meet the application’s QoS requirements. In this context, this chapter presents a study of the resource allocation process in(More)
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