Time-interpolated channel estimation for increasing channel capacity of superimposed training-based precoding schemes

Title
Time-interpolated channel estimation for increasing channel capacity of superimposed training-based precoding schemes
Author(s)
정성윤김병욱[김병욱]
Keywords
FADING CHANNELS; MIMO-OFDM; KALMAN FILTER; SYSTEMS; EQUALIZATION; MODEL
Issue Date
201505
Publisher
INST ENGINEERING TECHNOLOGY-IET
Citation
IET Communications, v.9, no.7, pp.933 - 939
Abstract
This study proposes a time-interpolated channel estimation method for the superimposed training-based precoding scheme in slowly time-varying channels. The regular inclusion of a superimposed training sequence, which is necessary for explicit time-varying channel estimation, reduces the power allocated to information transmission. Therefore time-interpolated channel estimation, where the transmission without a superimposed training symbol is performed during a few coherence times, makes very efficient use of transmitting power and possible gains in terms of capacity. A closed-form solution of the periodicity of time-interpolated channel estimation was derived using this method together with a Markov channel model. The simulation results confirmed that the use of the time-interpolated channel estimation method improves the performance of channel capacity and possibly provides energy savings for mobile terminals.
URI
http://hdl.handle.net/YU.REPOSITORY/32416http://dx.doi.org/10.1049/iet-com.2014.0604
ISSN
1751-8628
Appears in Collections:
공과대학 > 전자공학과 > Articles
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