Theoretical Analysis of CDMA Reverse Link Capacity with Interference Cancellation

Author

Cao, Gen ; Wu, Shaohong ; Wang, Jing ; Zheng, Ruiming ; Zhang, Xin ; Yang, Dacheng

Author_Institution

Wireless Theor. & Technol. Lab. (WT&T), Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2010

fDate

6-9 Sept. 2010

Firstpage

1

Lastpage

6

Abstract

Interference cancellation (IC) is an effective and easy implemented technology in the multi-user system. Previous studies demonstrate the principles of IC and IC process which show a great improvement in the system capacity with IC. However, no research has focused on the IC system´s capacity domain by giving an accurate formula. This article carries on the theoretical analysis of CDMA reverse link capacity with IC, presents the expressions as well as its optimal answer for synchronous frame and brings forward the formula as well as its suboptimal solution for asynchronous frame. Numerical result reveals that the commercial EV-DO reverse link capacity with IC will increase by at least 135% compared with the one without IC. Finally, the stability of the IC system is explored.

Keywords

code division multiple access; interference suppression; CDMA reverse link capacity; asynchronous frame; interference cancellation; multi-user system; synchronous frame; Artificial neural networks; Decoding; Integrated circuit modeling; Interference; Multiaccess communication; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 IEEE 72nd

Conference_Location

Ottawa, ON

ISSN

1090-3038

Print_ISBN

978-1-4244-3573-9

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VETECF.2010.5594062

Filename

5594062