Abstract
In this paper, we propose a centralized iterative time delay estimation scheme for asynchronous DS-CDMA communication systems. The proposed algorithm utilizes known training sequences and signatures for all multiple-access users to get the initial estimates of time delays. After that, the K-1 interfering signals are reconstructed with the estimated parameters and remove from the received data. Refined estimate of a desired user's time delay is then obtained from the residual data. The estimation accuracy of the proposed algorithm is close to the centralized Cramer-Rao Bound (CRB) after only one iteration.
Original language | English (US) |
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Pages | 292-295 |
Number of pages | 4 |
State | Published - 2000 |
Event | 2000 IEEE 6th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA 2000) - Parsippany, NJ, USA Duration: Sep 6 2000 → Sep 8 2000 |
Other
Other | 2000 IEEE 6th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA 2000) |
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City | Parsippany, NJ, USA |
Period | 9/6/00 → 9/8/00 |
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Electrical and Electronic Engineering