Adaptation of ASTC in a Correlated Rayleigh Frequency-Selective Fading Channels in OFDM systems with PAPR Reduction

Abstract

In this paper we suggest to use the ASTC (Algebraic Space Time Codes) as powerful coding technique for IEEE 802.11x OFDM standard combined with PAPR reduction scheme. ASTC with their very Algebraic- construction based on Quaternionic algebra, have a full rate, full divers ity, non-vanishing constant minimum determinant for increasing spectral efficiency, uniform average transmitt ed energy per antenna and good shaping, readily lend themselves to high data rate situations. However, by their c they require a nonselective flat fading channels belonging to narrow-band systems. In fact, such sy stems are not readily found in airs interfaces. In open air we have what are commonly called frequency-selecti