Title :
The study of eigenvalue-construct method used for signal distinguish of OFDM multi-path system
Author :
Yan, Zhou ; Donglin, Su
Author_Institution :
Sch. of Electron. Inf. Eng., Beijing Univ. of Aeronaut. & Astronaut.
Abstract :
This paper analyzes the signal environment of OFDM´s multi-path channel. Propose the method of distinguishing multi-path signal based on using multi-users´ detection in CDMA for reference from pre-researcher. And on the basis of information of frame synchronization of OFDM, eigenvalue-construct method such as ESPRIT and MUSIC have been used joining with pseudo-data correlative matrix method to estimate signal´s DOA, thus could be used in subject of user identify. The theoretical analysis and computer simulations help confirm its effectiveness in multi-users´ identify and signal distinguish in OFDM system
Keywords :
OFDM modulation; code division multiple access; direction-of-arrival estimation; eigenvalues and eigenfunctions; matrix algebra; multipath channels; multiuser detection; signal classification; synchronisation; CDMA; DOA; ESPRIT; MUSIC; OFDM multipath system; eigenvalue-construct method; frame synchronization; multipath channel; multiusers detection; pseudo-data correlative matrix method; Antenna arrays; Direction of arrival estimation; Frequency synchronization; Interference; Mathematics; Multiaccess communication; Multiple signal classification; OFDM; Signal analysis; Signal processing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1551659
