The Effect of Wireless Radio Channel on WCDMA System with Paralel Interference Cancellation

Kose U., Ozen A. E., Kurnaz Ç.

23nd Signal Processing and Communications Applications Conference (SIU), Malatya, Turkey, 16 - 19 May 2015, pp.1574-1577 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/siu.2015.7130149
  • City: Malatya
  • Country: Turkey
  • Page Numbers: pp.1574-1577
  • Keywords: WCDMA, multiple access interference, multiuser detection, parallel interference cancellation, matched filter
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

In CDMA based systems with the use of multiuser detection (MUD) methods the effects of multiple access interference (MAI) can be decreased and system performance can be increased. One of these methods which is parallel interference cancellation (PIC) is based on instantly estimating all users' information and removing MAI signal from active user signal. In this study, the effects of radio channel profiles and number of users on wideband CDMA (WCDMA) with parallel interference cancellation (PIC) are investigated. In the assessments, 2, 4, 8, 15 numbers of users, 3-finger rake receiver structure, and four different channel profiles measured in Manchester city center are used. It is observed from the results that the performance of PIC is changed dramatically depending upon channel's profile and number of users.