| 基于数据重构MNM的交织型OFDMA上行链路频偏盲估计 |
| |
| 引用本文： | 丁腾波,李式巨,沈雷.基于数据重构MNM的交织型OFDMA上行链路频偏盲估计[J].电路与系统学报,2009,14(6). |
| |
| 作者姓名： | 丁腾波 李式巨 沈雷 |
| |
| 作者单位： | 1. 浙江大学,信电系,信息与通信工程研究所,浙江,杭州,310027;浙江省电力设计院,浙江,杭州,310012
2. 浙江大学,信电系,信息与通信工程研究所,浙江,杭州,310027 |
| |
| 基金项目： | 浙江省重点科研工业项目 |
| |
| 摘 要： | 正交频分多址(OFDMA)系统同步问题的难点在于上行链路的频率同步,本文针对子载波交织分配的OFDMA系统上行链路,利用数据重构,提出一种基于MNM(Minimum-norm Method)算法的载波频偏盲估计算法,利用接收信号的周期性特点,在一个符号周期内以较小的计算量完成对各个用户的载波频偏估计.
|
| 关 键 词： | 交织分配 频偏盲估计 |
Modified MNM based blind estimation of frequency offset for interleaved OFDMA uplink |
| |
| DING Teng-bo,LI Shi-ju,SHEN Lei.Modified MNM based blind estimation of frequency offset for interleaved OFDMA uplink[J].Journal of Circuits and Systems,2009,14(6). |
| |
| Authors: | DING Teng-bo LI Shi-ju SHEN Lei |
| |
| Affiliation: | DING Teng-bo1,2,LI Shi-ju1,SHEN Lei1 (1. Institute of Information , Communication Engineering,Zhejiang University,Hangzhou 310027,China,2. Zhejiang Electric Power Design Institute,Hangzhou 310012,China) |
| |
| Abstract: | The real challenge of synchronization in OFDMA exists in the OFMDA uplink. For the interleaved OFDMA uplink,this paper,a blind estimation algorithm of frequency offset based on the minimum-norm method in the noise subspace is presented,which uses the characteristic of the periodic signal structure in the interleaved OFDMA uplink,and this algorithm can estimate the frequency offset of each user exactly in one OFDMA block. |
| |
| Keywords: | OFDMA OFDMA interleaved subcarrier allocation blind estimation of frequency offset |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
