SOC design of an IF subsampling terminal for a gigabit wireless LAN with asymmetric equalization

Abstract

The design of a simple IF subsampling terminal for a gigabit wireless local area network is presented. All equalization is performed in the base station, allowing the terminal to be implemented using simplified hardware without any digital signal processing. System design of the WLAN terminal is discussed and simulation results are presented for an SOC implementation of the terminal receiver with realistic block specifications. The WLAN uses 16-QAM modulation with a data rate of 1.6Gbit/s, and has a 400MHz signal bandwidth modulated on a 10.4GHz carrier, down-converted to an intermediate frequency of 800MHz.