DocumentCode
1333667
Title
On the pilot spacing constraints for continuous time-varying fading channels
Author
Savazzi, Stefano ; Spagnolini, Umberto
Author_Institution
Dipt. di Elettron. e Inf., Politec. di Milano, Milano, Italy
Volume
57
Issue
11
fYear
2009
Firstpage
3209
Lastpage
3213
Abstract
In common wireless systems pilot placing can be interpreted as a way to sample the channel with some degree of accuracy. In this letter we investigate the necessary conditions on the pilots spacing for time-varying fading to guarantee a specified average bit error rate. These constraints are evaluated in closed form for large SNR and small fading dynamics and specialized for varying fading correlation and coded/uncoded binary transmissions.
Keywords
error statistics; fading channels; radiocommunication; average bit error rate; coded-uncoded binary transmissions; continuous time-varying fading channels; fading dynamics; wireless systems pilot placing; Binary phase shift keying; Bit error rate; Channel estimation; Delay estimation; Fading; Frequency estimation; Sampling methods; Signal to noise ratio; Time varying systems; Wireless communication; MMSE channel estimation, pilot spacing, timevarying fading channels, training-based channel estimation;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOMM.2009.11.080024
Filename
5336838
Link To Document