Joint synchronization and modulation scheme for energy-efficient communication

摘要

A system including a transmitter and a receiver that are loosely synchronized, the transmitter encodes signal waveforms having a start time, a width and a height that are determined based on a range of possible relative drifts of a receiver clock with respect to a transmitter clock and the receiver decodes the waveforms based on a sequence of tests, chosen to account for any uncertainty that may arise due to the lack of tight synchronization.

主权项

1. A transmitter configured to communicate a first one of a plurality of messages to a receiver having a receiver clock, the transmitter comprising:
a transmitter clock configured to generate a clock signal that controls timing of the transmitter, a timing of the transmitter clock running independent of a timing of the receiver clock; and a modulator including a processor configured to,
determine a start time, a width and a height of a pulse representing the first message based on a range of possible relative drifts of the receiver clock with respect to the transmitter clock,generate the determined pulse, andtransmit the generated pulse to the receiver.