| Publisher | German Aerospace Center | ||
|---|---|---|---|
| Format | 87.0KB PDF | Date added | 09 Dec 2003 |
| Topics | Mobile - Wireless Communications, TDMA - CDMA | ||
| Downloads | 248 | ||
In this paper, an OFDM-CDM (Orthogonal Frequency Division Multiplexing Code Division Multiplexing) system with adaptive symbol mapping is presented. This combination enables a robust transmission with flexible error protection and data rate adaptation for parallel data streams by exploiting additional diversity due to CDM. Performance results are presented for fading channels where OFDMCDM with adaptive symbol mapping and soft interference cancellation is compared to conventional OFDM systems also taking into account channel coding with variable code rates.
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