DESIGN AND IMPLEMENTATION OF IEEE 802.16 BASEBAND SYSTEM ON FPGA

摘要：

In this paper, a physical-layer baseband modem is discussed based on IEEE 802.16 protocol. It is implemented on Xilinx FPGA and tested correctly in loop-mode. After channel coding, a bit stream goes through constellation mapper, pilot inserting, OFDM(Orthogonal Frequency Division Multiplexing) modulation, PAPR(Peak to Average Power Ratio) reduction and framing module to become 7 symbols in IQ parallel form prepared for RF(Radio Frequency) front end. On condition of loop-mode, these symbols become back to serial bit stream via synchronization, channel estimation, OFDM demodulation, pilot removing and constellation demapper in receiver part. In practice, the entire loop-mode system takes about 120us when clock rate is 40Mhz. As a consequence, the baseband system delay is much lower in order to satisfy the demands for high rate data processing in broadband communication.

关键词： OFDM Baseband System FPGA IEEE 802.16

作者: Chen Gu Xu Li

作者单位: State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University, Beijing 100044, State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044

会议类型: 国际会议

会议名称: 2011 International Conference on Communications Technology and Applications(2011年通信技术与应用国际会议 ICCTA 2011)

会议地点: 北京

会议语种:英文

页码: 1-5

在线出版日期: 2011-10-14（万方平台首次上网日期，不代表论文的发表时间）