Title :
Parallel interference cancellation techniques for synchronous carrier interferometry/MC-CDMA uplink [4G cellular systems]
Author :
Thippavajjula, Vijaya ; Natarajan, Balasubramaniam
Author_Institution :
Dept. of Electr. & Comput. Eng., Kansas State Univ., Manhattan, KS, USA
Abstract :
In this paper, we investigate the performance of various parallel interference cancellation (PIC) techniques for a synchronous carrier interferometry/MC-CDMA uplink. Specifically, we compare the performance of the system with conventional PIC, TPIC (PIC with threshold) and block-PIC. While TPIC does not offer any performance gain relative to conventional PIC, a significant improvement in performance and capacity is seen with block-PIC relative to conventional PIC (at the cost of a slight increase in complexity). We demonstrate that the block-PIC method provides the best performance with a BER of 10-3 at 12 dB which is 1 dB off the single user performance.
Keywords :
4G mobile communication; channel capacity; code division multiple access; error statistics; fading channels; interference suppression; multiuser detection; 4G cellular systems; BER; MC-CDMA uplink; TPIC; block-PIC; frequency-selective fading; multiuser detection; parallel interference cancellation techniques; spectral efficiency; spreading codes; synchronous carrier interferometry; system capacity; threshold PIC; Bit error rate; Frequency; Interference cancellation; Interferometry; Multicarrier code division multiple access; Multiple access interference; Multiuser detection; Performance gain; Silicon carbide; Transmitters;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1400032
