DOPPLER DIVERSITY TECHNIQUE BASED ON PILOT-AIDED CHANNEL ESTIMATION FOR OFDM WIRELESS MOBILE COMMUNICATION

摘要：

In the previous works on the traditional Doppler diversity algorithms, it is always assumed that the channel state information is perfect known at the receiver. However, this is not the case in real world. Hence, a novel Doppler diversity technique based on pilot-aided channel estimation for OFDM systems is studied in this paper. The performance of the proposed algorithm decreases if the value of normalized frequency shift is fixed as that in the traditional algorithm. But for the changeable value of normalized frequency shift, the performance is increased. Hence a method how to choose the optimum normalized Frequency shift based on pilot-aided channel estimation is researched in this paper. Finally, the simulation is evaluated to verify the analysis results.

关键词： Doppler Diversity Pilot-Aided channel estimation OFDM Frequency Shifts

作者: Jing Xue Tao Luo Dan Shan Weidong Xiang

作者单位: Key Laboratory of Universal Wireless Communications, Ministry of Education Beijing University of Pos ECE, University of Michigan-Dearborn, USA

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）