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A Centralized Scheduling and Retransmission Proposal for Firm Real-time Traffic in IEEE 802.11e

Douglas Dími DemarchLeandro Buss Becker

This work investigates the problem of scheduling network resources in the context of a cooperative mobile multi-robot system that exchanges messages with firm real-time constraints using a wireless network compliant with the IEEE 802.11e amendment. Due to the nature of wireless technology the scheduling algorithm must be able to deal with residual error at the MAC layer to provide a degree of reliability for time bounded messages. Moreover, additional requirements should be satisfied by the scheduling algorithm in order to increase the robustness and adaptability of the system. We propose an integrated scheduling and retransmission mechanism to solve this problem. Simulation experiments are used to evaluate our proposal.

http://www.lbd.dcc.ufmg.br/colecoes/sbrc/2007/046.pdf

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Biblioteca Digital Brasileira de Computação - Contato: bdbcomp@lbd.dcc.ufmg.br
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