Marcelo G. Rubinstein

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Wireless mesh networks (WMNs) are low-cost access networks built on cooperative routing over a backbone composed of stationary wireless routers. WMNs must deal with the highly unstable wireless medium. Thus, routing metrics and protocols are evolving by designing algorithms that consider link quality to choose the best routes. In this work, we analyze the(More)
This paper aims at investigating tradeoffs of mobile agents in network management. Mobile agents performance is compared with the SNMP one in management task simulations. Response time results show that the mobile agent is less sensitive to the latency and the band-width of a bottleneck link that connects the management station to the ones to be managed,(More)
This paper aims at investigating mobile agent tradeoffs in network management by performing management task simulations. Results show that the mobile agent performs better than the SNMP when the number of managed network elements ranges between two limits: an inferior bound, associated with the number of messages that pass through backbone links, and a(More)
This paper aims to investigate mobile agent scalability in network management, in order to nd when mobile agents can improve the management eeciency. Mobile agent performance is compared with the SNMP one in management task simulations. Response time results show that the mobile agent is less sensitive to the latency and the bandwidth of a bottleneck link(More)
This paper analyzes voice transmission capacity on IEEE 802.11 ad hoc networks by performing simulations related to delay, jitter, loss rate, and consecutive losses. We evaluate the influence of mobility on the number of sources transmitting voice. Another issue addressed in this paper is the effect of node density on voice transmission. Our simulation(More)
Wireless mesh networks (WMNs) are emerging as a promising solution for ubiquitous Internet access with mobility support. In such networks, user mobility may lead to Internet gateway changes and, consequently, impact the performance of continuous media applications. In this article, we investigate the impact of user mobility on the performance of(More)