Live demonstration: A baseband testbed for uplink mobile MIMO WiMAX communications

摘要

Recently, orthogonal frequency division multiple access (OFDMA) systems gain more and more attention because OFDMA systems provide higher data rate, better spectrum efficiency and more flexibility in managing channel bandwidth than other systems. This paper describes the implementation of a multi-input multi-output (MIMO)-OFDMA uplink baseband receiver for 802.16e standard in system-on-chip (SoC) platform. As SoC design methodology becomes commonplace and design complexity continues to increase, designers are faced with the daunting task of meeting escalating design requirements in shrinking time-to-market windows. For solving this problem, design reuse emerged as a possible approach to boost design productivity, and intellectual property (IP)-based design methodology has begun since the 1990s. The development of rapid prototyping testbeds with the SoC design methodology has given communication systems engineers the ability to implement and test their designs on real hardware in concert with the simulation stages.