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Interference-Free Broadband Single- and Multi-Carrier DS-CDMA

Hua, W., Yang, L-L. and Hanzo, L. (2005) Interference-Free Broadband Single- and Multi-Carrier DS-CDMA IEEE Communications Magazine, 43, (2), pp. 68-73.

Record type: Article


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.

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Published date: February 2005
Organisations: Southampton Wireless Group


Local EPrints ID: 261653
PURE UUID: 2a09b21c-745d-481d-8fd3-69ae6ec2a527
ORCID for L-L. Yang: ORCID iD

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Date deposited: 13 Dec 2005
Last modified: 18 Jul 2017 09:00

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Author: W. Hua
Author: L-L. Yang ORCID iD
Author: L. Hanzo

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