Abstract
We consider the use of an adaptive sigmoid function for a pipelined successive interference cancellation (PSIC) in a direct sequence/code multiple access system (DS/CDMA). The PSIC is a pipelined modification of a successive interference cancellation (SIC). To compensate the decoding delay of the SIC, the PSIC was proposed. Because the decision variable of the latter stage is more reliable than that of the early stage in the PSIC, the wrong decision of the early stage affects the decision of the final stage. So, we use a tentative decision function, which is adjusted depending on the variance of the MAI. The analysis and computer simulation results of the adaptive PSIC (ADPSIC) show that the ADPSIC outperforms both of the SIC and the PSIC with almost same decoding delay.
| Original language | English |
|---|---|
| Pages | 740-743 |
| Number of pages | 4 |
| Publication status | Published - 2000 Dec 3 |
| Event | 2000 IEEE International Conference on Communications - New Orleans, LA, USA Duration: 2000 Jun 18 → 2000 Jun 22 |
Other
| Other | 2000 IEEE International Conference on Communications |
|---|---|
| City | New Orleans, LA, USA |
| Period | 00/6/18 → 00/6/22 |
All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Electrical and Electronic Engineering