2002 International Telecommunications Symposium

"The performances of three TDMA receiver structures, using Maximum Likelihood Sequence Estimation (MLSE), Block Sequence Estimation (BSE) and Per-Survivor Processing (PSP) techniques were evaluated. The criteria adopted for analysis was according the minimum performance specifications of the IS-55 standard for transmissions over flat fading and frequency...

"This paper deals with performance improvement of event-driven simulation of multiservice loss networks by using Engsets’s customers model approximation. Model is based on simulation state modulated homogeneous Markov chain. The model obtains equal simulation results as direct model of group of customers. Simulation runs significantly faster, especially...

"In this paper, a method for resource allocation method in switchlet networks is introduced. The method is based on restricting the search space for the solution of a multicommodity flow problem The proposed approach is accurate, and amenable to real time implementation."

"This paper proposes a mobile agents based framework to implement the management of computer networks. The traditional approach used by SNMP is based on a highly centralized topology. For complex network computers, such a topology may cause overload conditions in the use of network resources during management activities. The adoption of mobile agents can...

"The paper describes the Context based service discovery protocol (CBSDP), a service discovery protocol build over the Ad hoc Context aware network architecture (ACAN), it is designed to solve the problem of discovering services in a highly dynamic ad hoc communications. CBSDP is a distributed system that provides the user with the ability to obtain...

"Most work on Differentiated Services (DiffServ) handles Quality of Service (QoS) provisioning on a per node basis, which assumes that this strategy would provide QoS in the whole domain. Nevertheless, this approach could fail in large domains with multiple flows aggregation and unexpected input traffic. Therefore, provisioning techniques should be used...

"In this paper, we present a model to evaluate and to control the Quality of Service end-to-end (QoS) in packet networks by using optimal resource allocation techniques. This is done controlling the QoS for each Class of Service (CoS), subject to QoS requirements. We consider \ufb01xed trade-o\ufb00s among the QoS of the classes. Our QoS model is based...

"Next generation Internet comes with the responsibility to offer good support to maintain Quality of Service (QoS) to users that want to pay more to have better services. New management mechanisms are created to issue the sensibly augmented complexity of differentiated services. Multimedia applications are one of the main goals of this new...

"The development of Internet as well overall communication technologies has created a very competitive communication market. In fact, there is no doubt that every company and perhaps every person in the world will have an Internet physical or wireless access via ISPs (Internet Service Provider). Thus the Internet became a very complex worldwide network...

"Results of Wizard of Oz experiments with Communicator system in Chile are presented in this paper. The task was to book a domestic flight and was used to evaluate the user response to this type of system and, more specifically, to a diphone TTS implemented with speech samples from a Chilean speaker. Two synthesizers were employed, with and without pitch...