Abstract
The capacity of wireless CDMA systems in the forward link is limited by both intra-cell and inter-cell cochannel interferences. In particular, when the mobile station is close to a cell boundary, the desired signal is disturbed by relatively strong interference from neighboring base stations. In this paper, a receiver architecture with smart antenna followed by a RAKE demodulator is suggested at IS-95 CDMA mobile station for interference suppression and diversity combining. Such a structure can work well only when the channel vector of desired signal is correctly estimated. We use the identifying spreading codes (as in IS-95 for example) to provide and adaptively correct a channel vector estimate, suppress cochannel interference, hence improve the system capacity.
| Original language | English (US) |
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| Pages | 947-951 |
| Number of pages | 5 |
| State | Published - 1998 |
| Event | Proceedings of the 1998 9th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. Part 3 (of 3) - Boston, MA, USA Duration: Sep 8 1998 → Sep 11 1998 |
Other
| Other | Proceedings of the 1998 9th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. Part 3 (of 3) |
|---|---|
| City | Boston, MA, USA |
| Period | 9/8/98 → 9/11/98 |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering