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Static-priority scheduling over wireless networks with multiple broadcast domains
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We propose a wireless medium access control (MAC) protocol that provides static-priority scheduling of messages in a guaranteed
collision-free manner. Our protocol supports multiple broadcast domains, resolves the wireless hidden terminal problem and allows for
parallel transmissions across a mesh network. Arbitration of messages is achieved without the notion of a master coordinating node,
global clock synchronization or out-of-band signaling. The protocol relies on bit-dominance similar to what is used in the CAN bus
except that in order to operate on a wireless physical layer, nodes are not required to receive incoming bits while transmitting. The use
of bit-dominance efficiently allows for a much larger number of priorities than would be possible using existing wireless solutions. A
MAC protocol with these properties enables schedulability analysis of sporadic message streams in wireless multihop networks.
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IEEE