Abstract
As a data transmission rate must be increased as required to support in the future high-speed wireless communication systems, the conventional DS/CDMA scheme suffers considerably from an intensive processing requirement for the increasing spreading rate to combat the inter-chip interference due to multi-path fading inherent in the wireless channel. In this paper, a parallel combinatory (PC) CDMA/OFDM scheme is considered as one possible variant access scheme to realize a bandwidth efficient transmission at high data rate while maintaining the high-capacity feature of the DS/CDMA scheme. This scheme combines the parallel combinatory feature of the existing PC/CDMA to achieve the high bandwidth efficiency and the orthogonal carrier multiplexing feature of OFDM to reduce the multiple user interference among sub-carriers. Our analysis of the bit error rate for the asynchronous CDMA system investigates the performance characteristics of the proposed system and shows the performance comparison with other types of multi-carrier DS/CDMA systems.
| Original language | English |
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| Pages | 470-474 |
| Number of pages | 5 |
| Publication status | Published - 1997 |
| Externally published | Yes |
| Event | Proceedings of the 1997 IEEE 6th International Conference on Universal Personal Communications, ICUPC'97. Part 1 (of 2) - San Diego, CA, USA Duration: 1997 Oct 12 → 1997 Oct 16 |
Other
| Other | Proceedings of the 1997 IEEE 6th International Conference on Universal Personal Communications, ICUPC'97. Part 1 (of 2) |
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| City | San Diego, CA, USA |
| Period | 97/10/12 → 97/10/16 |
ASJC Scopus subject areas
- Hardware and Architecture