New PAPR-preserving mapping methods for single-carrier FDMA with space-frequency block codes

Authors:
Cristina Ciochina;Damien Castelain;David Mottier;Hikmet Sari
Affiliations:
Wireless Communications Systems Department, Mitsubishi Electric R&D Centre Europe, Rennes, France;Wireless Communications Systems Department, Mitsubishi Electric R&D Centre Europe, Rennes, France;Wireless Communications Systems Department, Mitsubishi Electric R&D Centre Europe, Rennes, France;Telecommunications Department, École Supérieure d'Électricité, Gif sur Yvette, France
Venue:
IEEE Transactions on Wireless Communications
Year:
2009

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Abstract

Innovative mapping schemes for Space-Frequency Block Codes (SFBC) which are compatible with the structure of Single-Carrier Frequency Division Multiple Access (SC-FDMA) systems are introduced. We first show that existing space-time and space-frequency block codes lack flexibility in terms of framing or cause a degradation of the signal envelope properties when combined with SC-FDMA. Then, we present an Alamouti-based orthogonal code designed for 2 transmit antennas that makes use of an innovative mapping in the frequency domain to preserve the low envelope properties of SC-FDMA. Next, an extension of this concept to a quasi-orthogonal code for 4 transmit antennas is presented and analyzed. We prove the good performance of the proposed schemes over multiple-input multiple-output (MIMO) channels both in static and in high-mobility scenarios.