DocumentCode
2218102
Title
A novel channel estimator for a superposition-based cooperative system
Author
Yu Gong ; Zhiguo Ding ; Ratnarajah, T. ; Cowan, Colin F. N.
Author_Institution
Inst. of Electron., Queen´s Univ. of Belfast, Belfast, UK
fYear
2006
fDate
4-8 Sept. 2006
Firstpage
1
Lastpage
4
Abstract
This paper investigates channel estimation and equalization for the relay node of a cooperative diversity system based on superposition modulation. Exploring the superposition structure of the transmission data, we propose a novel channel estimator for the relay node. Without any pilot sequence, the proposed estimator can converge to the ideal case as if the transmission data is known to the receiver. We also re-derive the soft-input-soft-output MMSE equalizer to match the superimposed data structure of the cooperative scheme. Finally computer simulation results are given to verify the proposed algorithm.
Keywords
channel estimation; cooperative communication; diversity reception; least mean squares methods; modulation; relay networks (telecommunication); MMSE equalizer; channel equalization; channel estimation; channel estimator; computer simulation; cooperative diversity system; relay node; superposition modulation; superposition-based cooperative system; Abstracts; Fading; Signal to noise ratio;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Conference, 2006 14th European
Conference_Location
Florence
ISSN
2219-5491
Type
conf
Filename
7071317
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