1. A system, comprising: a receiver configured to receive a packet including a preamble portion, wherein the preamble portion includes (i) a short training field and (ii) a long training field; and a controller configured to: generate a first channel estimate based on the long training field, generate a second channel estimate based on the short training field, and generate a third channel estimate based on each of (i) the first channel estimate and (ii) the second channel estimate.