Title :
Performance analysis of asynchronous carrier interferometry/MC-CDMA uplink with interference cancellation techniques
Author :
Thippavajjula, Vijaya ; Natarajan, Balasubramaniam
Author_Institution :
Dept. of Electr. & Comput. Eng., Kansas State Univ., Manhattan, KS, USA
fDate :
April 28-30, 2005
Abstract :
In this paper, we analyze the uplink performance of an asynchronous carrier interferometry/MC-CDMA, with nonlinear parallel and serial interference cancellation techniques. Specifically, we employ the new variant of parallel interference cancellation known as block-PIC and demonstrate significant performance (10 dB) improvement relative to conventional PIC. We also study the effect of order of cancelling in serial interference cancellation by comparing the performance of the conventional fixed ordering scheme with dynamic ordering. We show that dynamic ordering provides a gain of 8 dB relative to fixed ordering.
Keywords :
code division multiple access; fading channels; interference suppression; interferometry; radio links; 8 dB; MC-CDMA uplink; asynchronous CI; block-PIC; carrier interferometry; frequency-selective fading; multicarrier code division multiple access; parallel interference cancellation; serial interference cancellation; Decoding; Delay; Gain; Interference cancellation; Interferometry; Multicarrier code division multiple access; Multiple access interference; Multiuser detection; Performance analysis; Silicon carbide;
Conference_Titel :
Wireless Telecommunications Symposium, 2005
Print_ISBN :
0-7803-8856-9
DOI :
10.1109/WTS.2005.1524777
