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Asymptotic Performance Analysis of Time-Frequency-Domain Spread MC DS-CDMA Systems Employing MMSE Multiuser Detection

Asymptotic Performance Analysis of Time-Frequency-Domain Spread MC DS-CDMA Systems Employing MMSE Multiuser Detection
Asymptotic Performance Analysis of Time-Frequency-Domain Spread MC DS-CDMA Systems Employing MMSE Multiuser Detection
In this contribution the asymptotic signal-to-interferenceplus- noise ratio (SINR) performance of multicarrier direct-sequence code-division multiple-access systems employing time-frequency-domain spreading, i.e., of the TF/MC DS-CDMA systems, is studied, when separate minimum mean-square error multiuser detection (MMSE-MUD) is considered. The separate MMSE-MUD detects signals first in the time (T)-domain and then in the frequency (F)-domain. Based on random matrix theory, closed-form expressions for the asymptotic SINR of the TF/MC DS-CDMA systems using separate MMSE-MUD is derived, when communicating over additive white Gaussian noise (AWGN) channels. The closed-form expressions show that the asymptotic SINR performance is only depended on the T- and F-domain user load factors as well as noise variance. Hence, they are beneficial to evaluation. Furthermore, our simulation and numerical results show that in most cases the asymptotic SINR can provide a good approximation to the SINR achieved by realistic TF/MC DS-CDMA systems employing separate MMSE-MUD.
Pan, Peng
56ea394e-58af-4d6f-8bd5-d08784d3a7f8
Zhang, Youguang
981009fc-2934-41e9-85a5-9945e9c9e37c
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Pan, Peng
56ea394e-58af-4d6f-8bd5-d08784d3a7f8
Zhang, Youguang
981009fc-2934-41e9-85a5-9945e9c9e37c
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7

Pan, Peng, Zhang, Youguang and Yang, Lie-Liang (2010) Asymptotic Performance Analysis of Time-Frequency-Domain Spread MC DS-CDMA Systems Employing MMSE Multiuser Detection. IEEE VTC2010 Spring, Taiwan. 16 - 19 May 2010.

Record type: Conference or Workshop Item (Paper)

Abstract

In this contribution the asymptotic signal-to-interferenceplus- noise ratio (SINR) performance of multicarrier direct-sequence code-division multiple-access systems employing time-frequency-domain spreading, i.e., of the TF/MC DS-CDMA systems, is studied, when separate minimum mean-square error multiuser detection (MMSE-MUD) is considered. The separate MMSE-MUD detects signals first in the time (T)-domain and then in the frequency (F)-domain. Based on random matrix theory, closed-form expressions for the asymptotic SINR of the TF/MC DS-CDMA systems using separate MMSE-MUD is derived, when communicating over additive white Gaussian noise (AWGN) channels. The closed-form expressions show that the asymptotic SINR performance is only depended on the T- and F-domain user load factors as well as noise variance. Hence, they are beneficial to evaluation. Furthermore, our simulation and numerical results show that in most cases the asymptotic SINR can provide a good approximation to the SINR achieved by realistic TF/MC DS-CDMA systems employing separate MMSE-MUD.

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More information

Published date: May 2010
Additional Information: Event Dates: 16-19 May 2010
Venue - Dates: IEEE VTC2010 Spring, Taiwan, 2010-05-16 - 2010-05-19
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 272638
URI: http://eprints.soton.ac.uk/id/eprint/272638
PURE UUID: 88199778-2f68-4680-afe8-f8a84cc1c256
ORCID for Lie-Liang Yang: ORCID iD orcid.org/0000-0002-2032-9327

Catalogue record

Date deposited: 05 Aug 2011 16:45
Last modified: 20 Jul 2019 01:12

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