Title :
Narrow-band interference rejection in OFDM-CDMA transmission system
Author :
Hsiao, Hsu-Feng ; Hsieh, Meng-Han ; Wei, Che-Ho
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
31 May-3 Jun 1998
Abstract :
In this paper, we present a new method called “differential threshold exciser (DTE)” to suppress narrow-band interference in an OFDM-CDMA transmission system. Also, another threshold exciser, “overthrough threshold exciser (OTTE)”, is discussed. The two methods use different transform characteristics of the interference and information signal to suppress the narrow-band interference regardless of the interference being stationary or nonstationary. The DTE algorithm has nearly the same performance as the OTTE algorithm with less computation complexity
Keywords :
code division multiple access; frequency division multiplexing; interference suppression; jamming; land mobile radio; signal processing; OFDM-CDMA transmission system; computation complexity; differential threshold exciser; narrow-band interference rejection; orthogonal FDM; overthrough threshold exciser; transform characteristics; AWGN; Autoregressive processes; Bandwidth; Baseband; Fourier transforms; Interference suppression; Multiaccess communication; Narrowband; OFDM; Transmitters;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.698918
