Low PAPR space frequency block coding for multiuser MIMO SC-FDMA systems: specific issues for users with different spectral allocations

• Main Authors: Ciochina Cristina, Mottier David, Castelain Damien
• Format: Article
• Language: English
• Published: SpringerOpen 2011-01-01
• Series: EURASIP Journal on Advances in Signal Processing
• Subjects: SC-FDMA; transmit diversity; single-carrier space frequency block coding; multi-user MIMO; peak to average power ratio.
• Online Access: http://asp.eurasipjournals.com/content/2011/1/54

<p>Abstract</p> <p>Single-carrier space frequency block coding (SC-SFBC) is an innovative mapping scheme suitable for implementing transmit diversity in single-carrier frequency division multiple access (SC-FDMA) systems. The main advantage of SC-SFBC is that it preserves the low envelope variations of SC-FDMA, which is particularly interesting for the uplink of wireless communications systems. In this article, we apply the SC-SFBC concept in a multiuser multiple-input multiple-output (MU-MIMO) scenario. We introduce a novel algorithm allowing the optimization of the parameters of SC-SFBC to enable low-complexity decoding at the receiver side and to maximize the overall spectral occupancy in MU-MIMO SC-FDMA systems, and we show the good performance of the proposed MU scheme.</p>