Based on the results of the estimation,the real-time spectrum occupancy was predicted and the channel capacity estimation was achieved,and at the same time,a new formula for channel capacity estimation was proposed.

The airport capacity estimation system is developed based on the capacity model and estimation method.

In order to be more robust and with higher fidelity,watermarking should be based on capacity estimation.

In this paper, an image hiding algorithm based on the artificial neural network (ANN) is presented, a method for adaptive capacity estimation is devised and used in this algorithm.

A novel iterative channel estimation algorithm for BICM-OFDM systems;

A channel estimation method for MIMO-OFDM system;

A performance comparison of channel estimation between DS-UWB system and TH-UWB system;

Low-complexity time-frequency channel estimator ML for MIMO-OFDM system;

The performance of channel estimator determines the performance of the MIMO systems because of the interference between various antennas and the inter-symbol interference (ISI).