Interference-Free Broadband Single- and Multi-Carrier DS-CDMA
The choice of the direct sequence spreading code in DS-CDMA predetermines the properties of the system. This contribution demonstrates that the family of codes exhibiting an interference-free window (IFW) outperforms classic spreading codes, provided that the interfering multi-user and multipath com...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
2005-02.
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| Subjects: | |
| Online Access: | Get fulltext |
| LEADER | 01284 am a22001453u 4500 | ||
|---|---|---|---|
| 001 | 261653 | ||
| 042 | |a dc | ||
| 100 | 1 | 0 | |a Hua, W. |e author |
| 700 | 1 | 0 | |a Yang, L-L. |e author |
| 700 | 1 | 0 | |a Hanzo, L. |e author |
| 245 | 0 | 0 | |a Interference-Free Broadband Single- and Multi-Carrier DS-CDMA |
| 260 | |c 2005-02. | ||
| 856 | |z Get fulltext |u https://eprints.soton.ac.uk/261653/1/hw-lly-lh-feb05-comms.pdf | ||
| 520 | |a The choice of the direct sequence spreading code in DS-CDMA predetermines the properties of the system. This contribution demonstrates that the family of codes exhibiting an interference-free window (IFW) outperforms classic spreading codes, provided that the interfering multi-user and multipath components arrive within this IFW, which may be ensured with the aid of quasi-synchronous adaptive timing advance control. It is demonstrated that the IFW duration may be extended with the advent of multicarrier DS-CDMA proportionately to the number of subcarriers. Hence, the resultant MC DS-CDMA system is capable of exhibiting nearsingle-user performance without employing a multi-user detector. A limitation of the system is that the number of spreading codes exhibiting a certain IFW is limited, although this problem may be mitigated with the aid of novel code design principles. | ||
| 655 | 7 | |a Article | |