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WiDom: a dominance protocol for wireless medium access
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Orientador(es)
Resumo(s)
In this paper, we address the problem of sharing a
wireless channel among a set of sporadic message streams where
a message stream issues transmission requests with real-time
deadlines. We propose a collision-free wireless medium access
control (MAC) protocol which implements static-priority
scheduling, supports a large number of priority levels and is fully
distributed. It is an adaptation to a wireless channel of the
dominance protocol used in the CAN bus. But, unlike that
protocol, our protocol does not require a node having the ability
to receive an incoming bit from the channel while transmitting to
the channel. The evaluation of the protocol with real embedded
computing platforms is presented to show that the proposed
protocol is in fact collision-free and prioritized. We measure the
response times of our implementation and show that the
response-time analysis developed for the protocol offers an upper
bound on the response times.
Descrição
Palavras-chave
Wireless LAN Medium access control Schedulability analysis
Contexto Educativo
Citação
Editora
IEEE