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

fYear

2005

fDate

April 28-30, 2005

Firstpage

131

Lastpage

135

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Telecommunications Symposium, 2005

Print_ISBN

0-7803-8856-9

Type

conf

DOI

10.1109/WTS.2005.1524777

Filename

1524777