Abstract
We consider space-domain interference suppression for reverse-link IS-95 and Wideband DS-CDMA (W-CDMA) based on the Minimum Mean Square Error (MMSE) cost criterion. An adaptive algorithm for estimating the MMSE combining coefficients for each path is presented which is compatible with IS-95 orthogonal modulation and long spreading codes. The relative performance of non-coherent, maximal ratio (max-ratio), and MMSE combining are compared with mixed (high and low) data rates, where received power is proportional to data rate. Our results show that MMSE combining can offer a significant increase in capacity relative to max-ratio combining. Analytical performance results for W-CDMA based on a large system limit are also presented, and are shown to be accurate even with relatively few combining coefficients.
| Original language | English (US) |
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| Title of host publication | IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall |
| Pages | 826-830 |
| Number of pages | 5 |
| Volume | 1 |
| State | Published - Jan 1 1999 |
| Event | IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall - Houston, TX, USA Duration: Sep 19 1999 → Sep 22 1999 |
Other
| Other | IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall |
|---|---|
| City | Houston, TX, USA |
| Period | 9/19/99 → 9/22/99 |
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics