FPGA implementation of frame synchronization and symbol timing synchronization based on OFDM system for IEEE 802.11a

摘要

The Orthogonal Frequency Division Multiplex (OFDM) has being used for many wireless and radio communications. The referenced examples are 802.11, 802.16, Digital Video Broadcasting (DVB) and so on. As its orthogonality, however, OFDM systems are vulnerable to synchronization errors. In this paper, It presents the implementation of a synchronization method including frame and symbol timing synchronization using Xilinx Field-Programmable Gate Array (FPGA) Spartan-3E device. The whole algorithms and simulations are under the Std IEEE 802.11a. Not only the result of the validation and implementation were reported in this paper but also the resources requirements in FPGA are shown with the mentioned method.