Paper Info
Title
Channel and carrier frequency offset estimation based on projection onto a bidimensional basis
Abstract
Two of the most counterproductive effects that must be dealt with in communication systems in realistic environments are carrier frequency offset (CFO) and time-varying channels. These problems are usually addressed by using independent approaches for each one. This paper introduces an algorithm that attacks both of these effects in a joint fashion. It is based on a rough compensation of CFO, and after considering that the remaining CFO uncertainty can be seen as part of the time-varying channel a channel estimation that includes that composite channel is performed. Particularly, the channel estimation based on projection onto a bidimensional basis is shown to be adequate to perform this process. The approach suggested in this paper is illustrated for a superimposed training-based communication system. Simulation results corroborate the validity of the proposed algorithm, where the performance obtained is similar to that achieved for the time-varying channel estimators based on bidimensional basis projection when no CFO is present.
Year
DOI
Venue
2019
10.3906/elk-1710-66
TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES
Keywords
DocType
Volume
Carrier frequency offset,communication channel estimation,orthogonal basis expansion,superimposed training
Journal
27
Issue
ISSN
Citations 
4.0
1300-0632
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Roberto Carrasco-Alvarez1285.80
Ramon Parra-Michel28412.86
Aldo Gustavo Orozco Lugo300.34
Marco Antonio Gurrola-Navarro464.80