Efficient Multiple Access Technique for Future Generation Wireless Systems

Abstract

Next generation of wireless mobile communication system will allow the provision of advanced multimedia services with ubiquitous access thanks to the higher data rates offered. However, it is necessary for the transmission technologies to be able to cope with problems deriving from high data rate transmission over wireless channels. Hitherto, Orthogonal Frequency Division Multiplexing has been the most widely used multiplexing technique due to its robustness against frequency selective fading channels that highly encounter in mobile transmission. However, it suffers from High Peak-to-Average Power Ratio which may be particularly troublesome in uplink transmission because of the costly high power amplifiers that are needed in the user terminals