Overlaying receive schedules for energy-constrained devices in channel-hopping networks

摘要

In one embodiment, a time at which a first device in a frequency-hopping communication network is expected to transmit a data message is determined. A first schedule is then generated based on the determined time, and the first schedule is overlaid on a frequency-hopping schedule for a second device in the network. The first schedule defines a first timeslot during which the second device listens for the data message, while the frequency-hopping schedule defines second timeslots during which the second device listens for data messages from other devices in the network. Notably, a duration of the first timeslot is greater than respective durations of the second timeslots.

主权项

1. A method, comprising:
determining a time at which a first device in a frequency-hopping communication network is expected to transmit a data message; generating a first schedule based on the determined time, the first schedule defining a first timeslot during which a second device in the network listens for the data message; overlaying the first schedule on a frequency-hopping schedule for the second device, wherein the frequency-hopping schedule defines second timeslots during which the second device listens for data messages from other devices in the network, anda duration of the first timeslot is greater than respective durations of the second timeslots; and
setting the duration of the first timeslot based on a predetermined maximum amount of retransmissions necessary for the second device to receive the data message.