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
30 September 2007
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.
.
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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02-04-03.PDF
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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
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Date deposited: 12 Dec 2007 14:40
Last modified: 18 Mar 2024 03:21
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Contributors
Author:
M El-Hajjar
Author:
R Tee
Author:
B Hu
Author:
L-L Yang
Author:
L Hanzo
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