Channel Estimation for SM Systems over Time-Varying Rayleigh Fading Channels
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Date
2014
Authors
Acar, Yusuf
Dogan, Hakan
Panayırcı, Erdal
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE
Abstract
This paper is concerned with the challenging and timely problem of channel estimation for spatial modulated systems in the presence of time varying channels. Recently estimation of channel state information for SM systems is investigated by the recursive least square (RLS) algorithm for slow fading channels. However it is clear that the RLS based receiver will have a performance degradation for fast fading channels. Therefore we developed iterative channel estimation based on detected symbols and curve fitting to track the channel variations for SM systems. Simulation results have demonstrated that the proposed iterative channel estimation offer substantial performance gains over the RLS channel estimation. In particular a savings of about 4dB is obtained at BER = 10(-7) as compared with RLS based receiver at 150km/h for 2 x 4 single carrier SM systems.
Description
Keywords
Spatial Modulation, Channel Estimation, MIMO, Iterative Receiver
Turkish CoHE Thesis Center URL
Citation
0
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N/A
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N/A
Source
Volume
Issue
Start Page
336
End Page
339