The Alamouti Scheme with CDMA-OFDM/OQAM

被引：22

作者：

Lele, Chrislin ^{[2
]}

Siohan, Pierre ^{[1
]}

Legouable, Rodolphe ^{[1
]}

机构：

[1] Orange Labs, F-35512 Cesson Sevigne, France

[2] CNAM, Laetitia Grp, F-75141 Paris, France

来源：

EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING | 2010年

关键词：

All Open Access; Gold;

D O I：

10.1155/2010/703513

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper deals with the combination of OFDM/OQAM with the Alamouti scheme. After a brief presentation of the OFDM/OQAM modulation scheme, we introduce the fact that the well-known Alamouti decoding scheme cannot be simply applied to this modulation. Indeed, the Alamouti coding scheme requires a complex orthogonality property; whereas OFDM/OQAM only provides real orthogonality. However, as we have recently shown, under some conditions, a transmission scheme combining CDMA and OFDM/OQAM can satisfy the complex orthogonality condition. Adding a CDMA component can thus be seen as a solution to apply the Alamouti scheme in combination with OFDM/OQAM. However, our analysis shows that the CDMA-OFDM/OQAM combination has to be built taking into account particular features of the transmission channel. Our simulation results illustrate the 2 x 1 Alamouti coding scheme for which CDMA-OFDM/OQAM and CP-OFDM are compared in two different scenarios: (i) CDMA is performed in the frequency domain, (ii) CDMA is performed in time domain.

引用

页数：13

共 21 条

[1] A simple transmit diversity technique for wireless communications [J].

Alamouti, SM .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1998, 16 (08) :1451-1458

[2]

[Anonymous], 2003, Advances in Gabor Analysis

[3]

[Anonymous], 2004, FUNDAMENTALS WIRELES

[4]

Bellanger Maurice, 2008, Proceedings of the 3rd International Symposium on Wireless Pervasive Computing (ISWPC 2008), P727, DOI 10.1109/ISWPC.2008.4556305

[5] Filtered multitone modulation for very high-speed digital subscriber lines [J].

Cherubini, G ;

Eleftheriou, E ;

Ölçer, S .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2002, 20 (05) :1016-1028

[6] Spreading codes for direct sequence CDMA and wideband CDMA cellular networks [J].

Dinan, EH ;

Jabbari, B .

IEEE COMMUNICATIONS MAGAZINE, 1998, 36 (09) :48-54

[7] Spatial data multiplexing over OFDM/OQAM modulations [J].

El Tabach, Mamdouh ;

Javaudin, Jean-Philippe ;

Helard, Maryline .

2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14, 2007, :4201-4206

[8] Multicarrier communication techniques for spectrum sensing and communication in cognitive radios [J].

Farhang-Boroujeny, Behrouz ;

Kempter, Roland .

IEEE COMMUNICATIONS MAGAZINE, 2008, 46 (04) :80-85

[9]

Fazel K., 1993, PIMRC 93, P468

[10] How the criminal justice system knows [J].

Green, A .

SOCIAL & LEGAL STUDIES, 1997, 6 (01) :5-+

← 1 2 3 →