Title :
Group-wise successive interference cancellation in multirate CDMA systems
Author :
Johansson, Ann-Louise
Author_Institution :
Nokia Svenska AB, Stockholm, Sweden
Abstract :
In this paper, the performance of variable processing gains (VPG) and multicode (MC) systems employing a group-wise successive interference canceller (GSIC) is analysed. The GSIC is an interference canceller performing group-wise signal estimation using matched filters and successive cancellation between the groups. The results for long random codes show that the systems converge to similar performance. Before convergence, the two schemes have however different performance. For the first few stages the MC scheme performs better than the VPG scheme, while the VPG scheme obtains the lowest minimum BER
Keywords :
code division multiple access; convergence of numerical methods; interference suppression; matched filters; random codes; BER; VPG scheme; convergence; group-wise successive interference cancellation; long random codes; matched filters; multicode systems; multirate CDMA systems; performance; variable processing gains; Convergence; Delay; Detectors; Interference cancellation; Matched filters; Multiaccess communication; Performance analysis; Performance gain; Research and development; Silicon carbide;
Conference_Titel :
Vehicular Technology Conference, 1999 IEEE 49th
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-5565-2
DOI :
10.1109/VETEC.1999.780584
