The University of Southampton
University of Southampton Institutional Repository

Coherent and Differential Downlink Space-Time Steering Aided Generalised Multicarrier DS-CDMA

Record type: Article

This paper presents a generalised MultiCarrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the downlink. In this contribution, the MC DSCDMA transmitter employs an Antenna Array (AA) and Steered Space-Time Spreading (SSTS). Furthermore, the proposed system employs both Time and Frequency (TF) domain spreading for extending the capacity of the system, which is combined with a user-grouping technique for reducing the effects of Multi-User Interference (MUI). Moreover, to eliminate the high complexity Multiple Input Multiple Output (MIMO) channel estimation required for coherent detection, we also propose a Differential SSTS (DSSTS) scheme. More explicitly, for coherent SSTS detection MVNr number of channel estimates have to be generated, where M is the number of transmit AAs, V is the number of subcarriers and Nr is the number of receive antennas. This is a challenging task, which renders the low-complexity DSSTS scheme attractive. Index Terms—MIMO, MC DS-CDMA, beamforming, spacetime spreading, differential space-time spreading.

PDF 04381390.pdf - Other
Download (188kB)

Citation

El-Hajjar, Mohammed, Hu, B, Yang, L-L and Hanzo, L (2007) Coherent and Differential Downlink Space-Time Steering Aided Generalised Multicarrier DS-CDMA IEEE Transactions on Wireless Communications, 6, (11), pp. 3857-3863.

More information

Published date: November 2007
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 264958
URI: http://eprints.soton.ac.uk/id/eprint/264958
PURE UUID: f3426896-4f63-4cc9-ba35-24fc44b52dd4
ORCID for Mohammed El-Hajjar: ORCID iD orcid.org/0000-0002-7987-1401
ORCID for L-L Yang: ORCID iD orcid.org/0000-0002-2032-9327

Catalogue record

Date deposited: 12 Dec 2007 17:07
Last modified: 18 Jul 2017 07:31

Export record

Contributors

Author: Mohammed El-Hajjar ORCID iD
Author: B Hu
Author: L-L Yang ORCID iD
Author: L Hanzo

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×