Analysis And Research Of OFDM Technology In IEEE802.11 Serial Standards

Orthogonal Frequency Division Multiplexing is one of key technologies in mobile communication fields. It is suitable for high rate data transmission in wireless channels because it can combat Inter-Symbol interference and multi-path fading efficiently. Now it has become an attractive technology. OFDM is a multiple carries technology, supports high rate data transmission with high spectrum efficiency. At present, OFDM technology has been used in many fields, such as wireless local area network (WLAN), digital audio broadcasting (DAB), digital video broadcasting(DVB) systems and so on. It is very promising to be the core technology of the fourth-generation mobile communications.This thesis studies the OFDM theory, and thoroughly introduces the operations and the frame structure of the Media Access Control and Physical Layer by the Wireless Local Area Network (WLAN) serial standard IEEE802.11 b/a/g which is based on OFDM technology.