CHANNEL ESTIMATION FOR LOW-OVERHEAD COMMUNICATION IN A NETWORK

摘要

A system for communicating between stations over a shared medium comprises: a first station comprising one or more antennas that transmit a waveform, the waveform including at least a first symbol, comprising a first set of frequency components modulated with preamble information and a second set of frequency components modulated with information; and at least a second station. The second station comprises one or more antennas, configured to: process sampled values from the first symbol based on channel characteristics estimated from the first set of frequency components to decode information encoded on a first subset of the second set of frequency components, and process sampled values from the first symbol based on channel characteristics estimated from the first set of frequency components and the first subset of the second set of frequency components to decode information encoded on a second subset of the second set of frequency components.