Frequency Synchronization for the OFDMA Uplink Based on the Tile Structure of IEEE 802.16e

被引：11
|
作者：
Bai, Lin [1 ]
Yin, Qinye [1 ]
机构：
[1] Xi An Jiao Tong Univ, Minist Educ MOE, Key Lab Intelligent Networks & Network Secur, Xian 710049, Peoples R China
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2012年 / 61卷 / 05期
基金：
美国国家科学基金会;
关键词：
IEEE 802.16e standard; iterative method; low complexity; orthogonal frequency-division multiple-access (OFDMA) uplink; synchronization; CHANNEL ESTIMATION; OFFSET ESTIMATION; TRACKING; SCHEME;
D O I：
10.1109/TVT.2012.2190122
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The multiple carrier frequency offsets (CFOs) of multiple users make frequency synchronization a challenging task in the orthogonal frequency-division multiple-access (OFDMA) uplink. In this paper, a computationally efficient iterative CFO estimation and compensation method for the OFDMA uplink with the generalized subcarrier allocation scheme (CAS) based on the tile structure of IEEE 802.16e is proposed. The proposed method only needs a few iteration cycles for its convergence. It greatly lowers the computational cost for the existing methods and can achieve better CFO estimation and compensation performance.
引用
收藏
页码：2348 / 2353
页数：7
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