Abstract
In this paper, we examine an adaptive successive interference canceler (ASIC) that can separate direct-sequence code-division-multiple-access (DS/CDMA) signals for the IS-95 (Interim Standard 95) uplink under near-far conditions, i.e., without power control. The ASIC employs a multistage architecture where each stage consists of a conventional matched filter (MF) detector with equal gain combining (EGC), followed by an adaptive interference canceler (AIC) that is adjusted by the least-mean-square (LMS) algorithm to track time-varying multipath channels. Variants of the basic ASIC architecture which exploit the specific structure of the IS-95 uplink traffic channel are also discussed. The bit-error-rate (BER) performance of the ASIC is compared with that of other interference cancelers, demonstrating the effectiveness of the ASIC for near-far scenarios.
| Original language | English |
|---|---|
| Pages (from-to) | 1187-1192 |
| Number of pages | 6 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 3 |
| Issue number | 52 ND |
| Publication status | Published - 2000 Dec 1 |
| Event | 52nd Vehicular Technology Conference (IEEE VTS Fall VTC2000) - Boston, MA, USA Duration: 2000 Sept 24 → 2000 Sept 28 |
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics