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On channel estimation for spatial modulated systems over time-varying channels

Thumbnail
Author
Acar, Yusuf
Doğan, Hakan
Panayırcı, Erdal
Type
Article
Date
2015-02
Language
en_US
Metadata
Show full item record
Abstract
Spatial Modulation (SM) has been proposed recently for multiple-input multiple-output (MIMO) systems to cope with the interchannel interference and to reduce the detection complexity as compared to the conventional MIMO systems. In SM system, the data symbols are transmitted by a randomly selected active antenna of a MIMO transmitter to the receiver through a wireless channel. The information is carried both by the data symbol from any signal constellation such as M-ary phase shift keying (M-PSK) or M-ary quadrature amplitude modulation (M-QAM), by the index of the selected antenna. The channel estimation is a critical process at the receiver during the coherent detection of the transmitted symbol and the antenna index, randomly selected. Recently, the channel estimation of channel for SM systems has been investigated by the recursive least square (RLS) algorithm for only quasi-static fading channels. In this paper, a novel channel estimation is proposed for SM systems in the presence of rapidly time-varying channels. The Bayesian mean square error (MSE) bound has been derived as a benchmark and the performance of the proposed approaches is studied in terms of MSE and bit-error rate (BER). Computer simulation results have confirmed that the proposed iterative channel estimation technique has significant BER/MSE performance advantages compared with existing channel estimation algorithm proposed earlier in the literature. (C) 2014 Elsevier Inc. All rights reserved.
Subject
Spatial modulation
Iterative channel estimation
Recursive least square
Curve fitting
Time-varying channel
Rayleigh-fading channels
Assisted modulation
Performance
Equalization
Capacity
Matrix
Model
URI
https://doi.org/10.1016/j.dsp.2014.11.004
https://hdl.handle.net/11413/2096
Collections
  • Makaleler / Articles [71]
  • Scopus Publications [724]
  • WoS Publications [1016]

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    Pilot symbol assisted channel estimation for 4x4 space time block coded spatial modulation systems 

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    Recently, spatial modulation (SM) and space-time block coding (STBC) are combined to take advantage of the benefits of both while avoiding their drawbacks for multiple-input and multiple-output (MIMO) systems. The pioneering ...
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    Spline Based Channel Estimation for STBC-SM Systems over Fast-Varying Rician Fading Channels 

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    In the STBC-SM systems, the information is carried both by STBC symbols and indices of the transmit antennas from which these symbols are transmitted. Channel estimation is a critical process at the receiver during the ...

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Istanbul Kültür University, Ataköy Campus E5 Karayolu Üzeri Bakırköy 34158, İstanbul / TURKEY
Copyright © İstanbul Kültür University

Creative Commons Lisansı
IKU Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

Designed by  UNIREPOS