An efficient timing-offset estimation scheme for cooperative networks

In this letter, a timing-offset estimation scheme is pro-posed for cooperative networks. The estimation scheme consists of coarse timing-offset estimation and fine timing-offset estimation. The presented scheme relies on periodic training data and linear mean square estimation for efficient estimation. The simulation results indicate that the perfor-mance of the proposed approach is better than or comparable to that of the conventional methods with lower computational complexity in the fine estimation.