Abstract
Blind adaptive space-time processing techniques are developed for both uplink reception and downlink transmission in multiuser TDD DS-CDMA systems to overcome multipath fading effect and multiple access interference. The system consists of a space-time array, a decorrelator, and a weight-adapter. For uplink reception, a hybrid combination of constant modulus algorithm and decision-directed algorithm approach is employed for blind adaptation. For multi-input-multi-output channel estimation, minimum mean squared error estimation is made using respread sequences of the decision symbols as references. For downlink multiuser transmission, the generalized zero-forcing approach is developed for pre-equalization and pre-interference-cancellation.
| Original language | English (US) |
|---|---|
| Pages | 924-928 |
| Number of pages | 5 |
| State | Published - 1999 |
| Event | IEEE Military Communications Conference (MILCOM 1999) - Atlantic City, NJ, USA Duration: Oct 31 1999 → Nov 3 1999 |
Other
| Other | IEEE Military Communications Conference (MILCOM 1999) |
|---|---|
| City | Atlantic City, NJ, USA |
| Period | 10/31/99 → 11/3/99 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering