Low Complexity Synchronization and Frequency Equalization for OFDM Systems

This paper shows an efficient implementation of symbol synchronization and frequency equalization algorithms for OFDM (orthogonal frequency division multiplexing) based systems. The aim is to have a low complexity realization that can be implemented on a FPGA (Field Programmable Gate Array), to obtain an area-efficient receiver. The algorithms are described theoretically, and hardware considerations about their implementation are discussed. Furthermore, the proposed methods have been tested on a real-time FPGA platform.