A Differential Successive Multiuser Ranging Detection for OFDMA Systems

摘要：

Ranging is a technology for the uplink synchronization. The objective is to adjust the timing and power of mobile stations (MSs). Due to the channel effect and multiple access interference (MAI), the ranging user detection is challenged. Higher estimation accuracy usually is accompanied with higher complexity or higher resources. In view of this, we propose a feasible and practical method to achieve high performance by the differential ranging detection. At the same time, we combine the multiuser detection to overcome the MAI and the multipath effect. The most important is that the complexity of the proposed method is less than the conventional method when less ranging users transmit signals on the ranging slot.

关键词： ranging OFDMA uplink multiuser ranging detection timing estimation power estimation.

作者: Chieh-Lung Lin Szu-Lin Su

作者单位: Institute of Computer and Communication Engineering,National Cheng Kung University,Tainan, Taiwan, R Institute of Computer and Communication Engineering, National Cheng Kung University, Tainan, Taiwan,

会议类型: 国际会议

会议名称: 2011年无线通信与信号处理国际会议(WCSP 2011)

会议地点: 南京

会议语种:英文

页码: 1-5

在线出版日期: 2011-11-09（万方平台首次上网日期，不代表论文的发表时间）