Title
Zero phase smoothing of radio channel estimates.
Abstract
Modern radio systems require accurate radio channel estimates in the presence of fast fading. This paper proposes an iterative radio channel estimation system where the detected and decoded symbols from the previous iteration are used as 'virtual' pilot symbols to improve estimation accuracy. In each iteration of the receiver algorithm, a low order Kalman filter provides a rough estimate of the channel gains. This rough estimate is refined to a more accurate radio channel estimate with a zero phase de-noising filter. This two stage channel estimation system is capable of providing near optimal channel estimation at a much lower computational cost than prior art. It is demonstrated that the proposed radio channel estimation is capable of supporting low error data reception at high fading rates. The algorithm can be implemented efficiently on modern multicore computing systems.
Year
Venue
Keywords
2012
European Signal Processing Conference
iterative signal processing,channel estimation,radio communications
Field
DocType
ISSN
Control theory,Computer science,Fading,Radio communications,Multicore computing,Algorithm,Communication channel,Kalman filter,Smoothing,Radio channel,Channel state information
Conference
2076-1465
Citations 
PageRank 
References 
2
0.38
5
Authors
3
Name
Order
Citations
PageRank
McGuire, M.1797.48
Alireza Movahedian240.79
Mihai Sima39516.66