Abstract
A coherent multiuser decorrelating detector for an asynchronous CDMA, time-varying Rayleigh fading channel is proposed and analyzed. The detector employs fractionally sampled correlators' outputs at time instants corresponding to users' relative delays to simultaneously achieve two goals: the novel realization of a one-shot decorrelator with lower computational complexity; and to exploit a form of the time diversity for improved error performance compared to symbol spaced sampling. The decision statistics are formed from the decorrelator output according to the maximal ratio combining rule. The proposed detector performance is compared o that of a conventional symbol-spaced receiver in a single-user environment, and the impact of the channel estimation error is illustrated.
| Original language | English (US) |
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| Pages | 600-604 |
| Number of pages | 5 |
| State | Published - 1997 |
| Event | Proceedings of the 1997 IEEE International Conference on Communications, ICC. Part 3 (of 3) - Montreal, Can Duration: Jun 8 1997 → Jun 12 1997 |
Other
| Other | Proceedings of the 1997 IEEE International Conference on Communications, ICC. Part 3 (of 3) |
|---|---|
| City | Montreal, Can |
| Period | 6/8/97 → 6/12/97 |
All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Electrical and Electronic Engineering