Multiple Carrier Frequency Offsets Compensation for the Uplink of Interleaved OFDMA

摘要：

In the uplink of interleaved orthogonal frequency division multiple access (OFDMA) systems, multiuser interference (MUI) occurs due to different carrier frequency offsets (CFOs) from different users at the receiver. In this paper, a novel scheme is presented to compensate the multiple CFOs at the interleaved OFDMA receiver. The proposed scheme is based on a calculation of optimum CFO correction value for each single user, which maximizes the average signal-to-interference ratio (SIR) so as to mitigate the MUI to each user. Both theoretical analysis and simulation results show that the proposed scheme is with enhanced and robust system performance compared to conventional schemes under various CFO conditions.

作者: Gang Wang Xia Lei Yue Xiao Shaoqian Li

作者单位: National Key Laboratory of Science and Technology on Communications University of Electronic Science and Technology of China, Chengdu, 610054, China

会议类型: 国际会议

会议名称: 2010年无线通信与信号处理国际会议

会议地点: 上海

会议语种:英文

页码: 1-5

在线出版日期: 2010-10-20（万方平台首次上网日期，不代表论文的发表时间）