Research of Bit Error Rate with OFDM system based on low density parity check codes;

Synchronization pilot s design in OFDM system;

Optimum power allocation of OFDM system with multi-User;

An improved channel estimation algorithm based on DFT iteration in MIMO-OFDM systems

A new channel estimator is proposed for Turbo receiver in MIMO-OFDM systems.

MIMO-OFDM systems can achieve high data rates over broadband wireless channels.

In the space-time-frequency-coded MIMO-OFDM system,the scheme of subcarrier grouping is adopted to divide the pilot sequence into independent subchannels,and the channel estimation is extended from the space-frequency dimensions to the space-time-frequency dimensions,thus reducing the complexity of the system coding/decoding and the pilot sequence design.

The basic thought is to apply the existing blind source separation (BSS) algorithm to the signal detection in MIMO-OFDM systems.

Allocation of antennas and subcarriers is one of most important issue for multiuser MIMO-OFDM system radio resource management.

This paper mainly conducts research on the application of LDPC-OFDM system in wireless data transmission.

A kind of decision-directed carrier frequency tracking algorithm for OFDM systems;

Synchronization scheme using chaotic signal for OFDM systems and performance comparison;

A new synchronization algorithm for OFDM systems using training frame;