PAPR reduction performance by active constellation extension for diversity MIMO-OFDM systems

Abstract

The V-BLAST wireless communication architecture, space-time block code (STBC), and space-frequency block code (SFBC) techniques are strong candidates for achieving very high data rates in 4G broadband wireless communications. This paper extends the efficient Active Constellation Extension Smart Gradient-Project (ACE-SGP) peak-to-average power (PAPR) reduction method to STBC, SFBC, and V-BLAST systems. Simulation results show 4.19 and 3.57dB of PAPR reduction for the Alamouti STBC and SFBC, respectively. © 2010 T. Tsiligkaridis and D. L. Jones.