Secure multiuser MIMO communication systems with imperfect channel state information

2019 ◽  
Vol 37 ◽  
pp. 100863
Author(s):  
Berna Özbek ◽  
Özgecan Özdogan Şenol ◽  
Güneş Karabulut Kurt
Keyword(s):  
Channel State Information ◽  
Communication Systems ◽  
Imperfect Channel State Information ◽  
Multiuser Mimo ◽  
Channel State ◽  
State Information ◽  
Mimo Communication

Joint spatial modulation and beamforming based on statistical channel state information for hybrid massive MIMO communication systems

2019 ◽  
Vol 13 (10) ◽  
pp. 1458-1464 ◽  
Author(s):  
Mingxuan Zhang ◽  
Weiwei Miao ◽  
Yiting Shen ◽  
Jin Huang ◽  
Shaqian Zhang ◽  
...  
Keyword(s):  
Channel State Information ◽  
Massive Mimo ◽  
Communication Systems ◽  
Spatial Modulation ◽  
Channel State ◽  
State Information ◽  
Mimo Communication

scholarly journals Power Optimization of Tilted Tomlinson-Harashima Precoder in MIMO Channels with Imperfect Channel State Information

2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Hossein Khaleghi Bizaki ◽  
Morteza Khaleghi Hojaghan ◽  
Seyyed Mohammad Razavizadeh
Keyword(s):  
Channel State Information ◽  
Communication Systems ◽  
Estimation Error ◽  
Multiple Input Multiple Output ◽  
Channel Estimation Error ◽  
Imperfect Channel State Information ◽  
Mimo Channels ◽  
Channel State ◽  
State Information ◽  
Input Multiple Output

This paper concentrates on the designing of a robust Tomlinson-Harashima Precoder (THP) over multiple-input multiple-output (MIMO) channels in wireless communication systems with assumption of imperfect channel state information (CSI) at the transmitter side. With the assumption that the covariance matrix of channel estimation error is available at the transmitter side, we design a THP that presents robustness against channel uncertainties. In the proposed robust THP, the transmit power is further minimized by using the Tilted constellation concept. This power minimization reduces the interchannel Interference (ICI) between subchannels and, furthermore, recovers some part of the THP's power loss. The bit error rate (BER) of the proposed system is further improved by using a power loading technique. Finally, the simulation results compare the performance of our proposed robust THP with a conventional MIMO-THP.

Sign in / Sign up

Export Citation Format

Share Document