Title :
A MCI cancellation scheme employing multi-user detection techniques in VSF-OFCDM system
Author :
Yong Wang ; Hui-min Chen ; Li-lin Huang ; Yanliang Jin
Author_Institution :
Dept. of Commun. Eng., Shanghai Univ., Shanghai
Abstract :
This paper proposes a multi-code interference (MCI) cancellation scheme employing multi-user detection (MUD) techniques for VSF-OFCDM system. The MCI cancellation structure is composed of minimum mean square error (MMSE) multi-user detector as the time domain MUD (TMUD) and parallel interference cancellation multi-user detector (PIC- MUD) as the frequency domain MUD (FMUD), i.e., TFMUD. Simulation results show that the TFMUD detector is more robust to different channel conditions and system parameters than the conventional detector.
Keywords :
OFDM modulation; channel coding; code division multiplexing; frequency-domain analysis; interference suppression; least mean squares methods; multiuser detection; packet radio networks; time-domain analysis; MMSE; VSF-OFCDM system; broadband packet wireless communication systems; downlink wireless access; frequency domain MUD; frequency domain multiuser detection; minimum mean square error; multicode interference cancellation scheme; parallel interference cancellation multiuser detection; time domain multiuser detection technique; Multi-code interference; Multi-user detection; Time and frequency domain multi-user detection;
Conference_Titel :
Wireless, Mobile and Sensor Networks, 2007. (CCWMSN07). IET Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-0-86341-836-5