Abstract
This paper proposes adaptive multi-code CDM transmission scheme for multipath fading environment to achieve high code utilization efficiency. In proposed system, we apply a new parallel transmission scheme using cyclic codes generated from a modified M-sequence which inserted the guard chips before and after a M-sequence. Moreover with radio channel estimation results obtained from downlink by this multi-code CDM transmission scheme, the number of guard chips is varied adaptively on the uplink. In micro cellular system, the performances of proposal system are evaluated by computer simulation. As a result, it is essential for high quality broadband mobile communication to apply adaptive transmission scheme to new multi-code CDM transmission system.
| Original language | English |
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| Pages | 338-343 |
| Number of pages | 6 |
| Publication status | Published - 1997 Dec 1 |
| Event | Proceedings of the 1997 IEEE International Conference on Personal Wireless Communications - Mumbai, India Duration: 1997 Dec 17 → 1997 Dec 19 |
Other
| Other | Proceedings of the 1997 IEEE International Conference on Personal Wireless Communications |
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| City | Mumbai, India |
| Period | 97/12/17 → 97/12/19 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering