Cosmological Model Independent Time Delay Method
  We propose a Cosmological Model Independent Time Delay (CMITD) method where
the Lorentz invariance violation (LIV) variable $K(z)$ is constructed by
observational data instead of cosmological model. The simulated time delay data
show the CMITD method could present the validity of LIV test. And, the errors
in the propagating process is critical for the existence and magnitude of LIV.
