Comments on "Timing Estimation and Resynchronization for Amplify-and-Forward Communication Systems
Hani Mehrpouyan, Steven D. Blostein · IEEE Transactions on Signal Processing · 2011
This comment first shows that the Cramér–Rao lower bound (CRLB) derivations in the above paper are not exact. In addition, contrary to the claims in the above paper, the assumptions of perfect timing offset estimation and matched-filtering at the relays affect the generality of the analytical results and cannot be justified.