New Algorithm for Time and Frequency Synchronization in MIMO-OFDM Systems

被引：9

作者：

Singh, Sandeep Kumar ^{[1
]}

Rathkanthiwar, Anagha P. ^{[2
]}

Gandhi, Abhay S. ^{[1
]}

机构：

[1] Visvesvaraya Natl Inst Technol, Dept Elect & Commun Engn, Nagpur, Maharashtra, India

[2] Priyadarshini Coll Engn, Dept Elect Engn, Nagpur, Maharashtra, India

来源：

WIRELESS PERSONAL COMMUNICATIONS | 2017年 / 96卷 / 03期

关键词：

MIMO-OFDM; OFDM synchronization; Timing synchronization; Carrier frequency offset; Frequency synchronization; OFFSET;

D O I：

10.1007/s11277-017-4090-x

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This paper addresses the problem of time and frequency synchronization in MIMO-OFDM systems, which are extremely sensitive to these errors. A preamble based algorithm is proposed for the estimation of synchronization errors. Product of autocorrelation function and cross correlation function is used for symbol timing offset estimation which reduces the uncertainty in timing estimation due to timing metric plateau. Phase difference between two identical parts of the preamble is used for carrier frequency offset estimation. Simulation results are presented to validate the performance of the algorithm.

引用

页码：3283 / 3295

页数：13

共 19 条

[1] Frequency offset estimation for OFDM in wireless communications [J].