Abstract
In this paper we compare several near-far resistant recursive delay tracking algorithms and propose a robust multi-user detection scheme for asynchronous DS-CDMA systems. The delay tracking algorithms are based on the so-called 'propagator method' which permit direct update of the noise subspace from the collected data via a chosen criterion. The estimated delays are then used to demodulate the received signal using a robust formulation of the decorrelating receiver. We compare the tracking performance of the LMS, exponentially weighted RLS, exponentially weighted H∞ and time-varying H∞ solutions, and also compare the performance of our robust receiver with the decorrelating and MMSE receivers.
| Original language | English (US) |
|---|---|
| Title of host publication | IEEE Signal Processing Workshop on Statistical Signal and Array Processing, SSAP |
| Editors | Anon |
| Publisher | IEEE Comp Soc |
| Pages | 112-115 |
| Number of pages | 4 |
| State | Published - Dec 1 1998 |
| Event | Proceedings of the 1998 9th IEEE SP Workshop on Statistical Signal and Array Processing - Portland, OR, USA Duration: Sep 14 1998 → Sep 16 1998 |
Other
| Other | Proceedings of the 1998 9th IEEE SP Workshop on Statistical Signal and Array Processing |
|---|---|
| City | Portland, OR, USA |
| Period | 9/14/98 → 9/16/98 |