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Downlink Steered Space-Time Spreading Assisted Generalised Multicarrier DS-CDMA Using Sphere-Packing-Aided Multilevel Coding

Downlink Steered Space-Time Spreading Assisted Generalised Multicarrier DS-CDMA Using Sphere-Packing-Aided Multilevel Coding
Downlink Steered Space-Time Spreading Assisted Generalised Multicarrier DS-CDMA Using Sphere-Packing-Aided Multilevel Coding
This paper presents a novel generalised Multi-Carrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the downlink, as well as employing multi-dimensional Sphere Packing (SP) modulation for increasing the achievable diversity product. In this contribution, the MC DS-CDMA transmitter considered employs multiple Antenna Arrays (AA) and each of the AAs consists of several antenna elements. Furthermore, the proposed system employs both time- and frequency- (TF) domain spreading for extending the achievable capacity, when combined with a novel user-grouping technique for reducing the effects of Multiuser Interference (MUI). Moreover, in order to further enhance the system’s performance, we invoke a MultiLevel Coding (MLC) scheme, whose component codes are determined using the so-called equivalent capacity based constituent-code rate-calculation procedure invoking a 4-dimensional bit-to-SP-symbol mapping scheme. Our results demonstrate an approximately 3.8 dB Eb/N0 gain over an identical throughput scheme dispensing with SP modulation at a BER of 10?5.
472-476
El-Hajjar, M
3a829028-a427-4123-b885-2bab81a44b6f
Tee, R
05d37c0d-69b3-4b4f-900a-34416f34ed35
Hu, B
5dcb8fd4-63dc-4902-9fa0-e8e6481cdb4f
Yang, L-L
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
El-Hajjar, M
3a829028-a427-4123-b885-2bab81a44b6f
Tee, R
05d37c0d-69b3-4b4f-900a-34416f34ed35
Hu, B
5dcb8fd4-63dc-4902-9fa0-e8e6481cdb4f
Yang, L-L
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1

El-Hajjar, M, Tee, R, Hu, B, Yang, L-L and Hanzo, L (2007) Downlink Steered Space-Time Spreading Assisted Generalised Multicarrier DS-CDMA Using Sphere-Packing-Aided Multilevel Coding. IEEE VTC'07 (Fall), Baltimore, MD, United States. 30 Sep - 03 Oct 2007. pp. 472-476 .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper presents a novel generalised Multi-Carrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the downlink, as well as employing multi-dimensional Sphere Packing (SP) modulation for increasing the achievable diversity product. In this contribution, the MC DS-CDMA transmitter considered employs multiple Antenna Arrays (AA) and each of the AAs consists of several antenna elements. Furthermore, the proposed system employs both time- and frequency- (TF) domain spreading for extending the achievable capacity, when combined with a novel user-grouping technique for reducing the effects of Multiuser Interference (MUI). Moreover, in order to further enhance the system’s performance, we invoke a MultiLevel Coding (MLC) scheme, whose component codes are determined using the so-called equivalent capacity based constituent-code rate-calculation procedure invoking a 4-dimensional bit-to-SP-symbol mapping scheme. Our results demonstrate an approximately 3.8 dB Eb/N0 gain over an identical throughput scheme dispensing with SP modulation at a BER of 10?5.

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More information

Published date: 30 September 2007
Additional Information: Event Dates: 30 September - 3 October 2007
Venue - Dates: IEEE VTC'07 (Fall), Baltimore, MD, United States, 2007-09-30 - 2007-10-03
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 264951
URI: http://eprints.soton.ac.uk/id/eprint/264951
PURE UUID: d2364593-36a1-4733-bdf7-80e6b4b77e54
ORCID for M El-Hajjar: ORCID iD orcid.org/0000-0002-7987-1401
ORCID for L-L Yang: ORCID iD orcid.org/0000-0002-2032-9327
ORCID for L Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 12 Dec 2007 14:40
Last modified: 18 Mar 2024 03:21

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Contributors

Author: M El-Hajjar ORCID iD
Author: R Tee
Author: B Hu
Author: L-L Yang ORCID iD
Author: L Hanzo ORCID iD

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