scholarly journals Space-Frequency Block Code with Matched Rotation for MIMO-OFDM System with Limited Feedback

2009 ◽  
Vol 2009 (1) ◽  
Author(s):  
Min Zhang ◽  
Thushara D. Abhayapala ◽  
Dhammika Jayalath ◽  
David Smith ◽  
Chandra Athaudage
Keyword(s):  
Limited Feedback ◽  
Block Code ◽  
Ofdm System ◽  
Mimo Ofdm ◽  
Space Frequency

scholarly journals Space Time Block Code Analysis for MIMO-OFDM System

2014 ◽  
Vol 100 (2) ◽  
pp. 1-7 ◽  
Author(s):  
Vinay Kumar ◽  
C. Ram Singla ◽  
Chirag Chirag
Keyword(s):  
Block Code ◽  
Space Time ◽  
Ofdm System ◽  
Time Block ◽  
Code Analysis ◽  
Space Time Block Code ◽  
Mimo Ofdm

Space frequency block coding with grouped phase rotation for asymmetric MIMO-OFDM system

2010 ◽  
Author(s):  
Akinori Nakajima ◽  
Kenichiro Tanaka ◽  
Akinori Ohashi ◽  
Hiroshi Hattori ◽  
Akihiro Okazaki ◽  
...  
Keyword(s):  
Ofdm System ◽  
Block Coding ◽  
Phase Rotation ◽  
Mimo Ofdm ◽  
Space Frequency

Combined Beamforming with Orthogonal Space Time Block Code for MIMO-OFDM with Simple Feedback

2016 ◽  
Vol 4 (3) ◽  
pp. 580
Author(s):  
Hala M. Abd Elkader ◽  
Gamal M. Abdel-Hamid ◽  
Adly Tag El-Dien ◽  
Asmaa A. Nassif
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Multiple Input Multiple Output ◽  
Block Code ◽  
Space Time ◽  
Ofdm System ◽  
Time Block ◽  
Downlink Transmission ◽  
Space Time Block Code ◽  
Orthogonal Space ◽  
Mimo Ofdm

<p>In this paper, we introduce a proposed scheme to enhance the performance of orthogonal space time block code (OSTBC) with four time slots and two antennas by combing OSTBC with random beamforming to can use it in the downlink transmission for a mobile system.  Multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) system has been recognized as one of the most promising techniques to achieve a good service and increase data rate in the next generation (4&amp;5G) broadband wireless communications. So, we apply Space time block code (STBC) for MIMO-OFDM system with linear decoding.  Also, we perform STBC with beamforming for MIMO-OFDM system to improve the performance of a system. Simulation results show that the beamforming improves bit error rate (BER) performance of OSTBC and STBC-OFDM for different types of modulation and diversity.</p>

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