Paper Info
Title
Robust channel estimation for broadband satellite communications
Abstract
In this paper we study robust channel estimation techniques for supporting broadband satellite communications in OFDM (Orthogonal Frequency Division Multiplexing) based systems. The study considers the use of QPSK (Quadrature Phase-Shift Keying) digital modulation scheme. To achieve reliable coherent detection two different pilot symbols transmission methods are evaluated and compared: data multiplexed pilots and implicit pilots. The method of implicit pilots allows coherent detection at the receiver while avoiding spectral degradation associated with the data multiplexed pilots' technique but results in mutual interference between pilots and data. Since the interference levels between data and pilots might be very high, we propose an iterative receiver.
Year
DOI
Venue
2011
10.1109/EUROCON.2011.5929202
EUROCON - International Conference Computer as a Tool
Keywords
Field
DocType
OFDM modulation,channel estimation,quadrature phase shift keying,satellite communication,OFDM systems,QPSK,broadband satellite communications,coherent detection,data multiplexed pilots,implicit pilots,pilot symbols transmission methods,quadrature phase-shift keying digital modulation scheme,robust channel estimation,OFDM,channel estimation,implicit pilots
Computer science,Keying,Communication channel,Modulation,Electronic engineering,Interference (wave propagation),Communications satellite,Multiplexing,Orthogonal frequency-division multiplexing,Phase-shift keying
Conference
ISBN
Citations 
PageRank 
978-1-4244-7486-8
0
0.34
References 
Authors
5
2
Name
Order
Citations
PageRank
Filipe Balseiro100.34
Nuno Souto200.34