| This paper is focused on the new concept of cluster OFDM for high-speed data transmission in the Satellite-Earth communication, researches on the key technology of synchronization and cluster. Firstly, it analyzes the technology of OFDM and cluster OFDM basis on theory and mathematics. Secondly, after the research and simulation of cluster OFDM synchronization technology, this paper proposes a model of OFDM transmitter. Finally, through the research and simulation of OFDM and cluster, this paper describes the theory of frequency division and code division cluster OFDM and proposes the models of transmitter and receiver of cluster OFDM, then introduces a 4-cluster OFDM simulation system and gives some simulation and experiment results. |
