MMSE space-time multi-user detection in MIMO-OFDM system

2008 ◽  
Author(s):  
Lingyun Lu ◽  
Yang Xiao ◽  
Shujun Zhang
Keyword(s):  
Space Time ◽  
Ofdm System ◽  
Mimo Ofdm

Transmission Performance of Space Time Block Coding with Grouped Phase Rotation for Asymmetric MIMO-OFDM System

2011 ◽  
Vol E94-B (12) ◽  
pp. 3540-3549
Author(s):  
Akinori NAKAJIMA ◽  
Kenichiro TANAKA ◽  
Akinori OHASHI ◽  
Hiroshi HATTORI ◽  
Akihiro OKAZAKI ◽  
...  
Keyword(s):  
Space Time ◽  
Ofdm System ◽  
Time Block ◽  
Transmission Performance ◽  
Block Coding ◽  
Phase Rotation ◽  
Space Time Block Coding ◽  
Mimo Ofdm

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

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>

Performance Analysis of Adaptive Filter Channel Estimated MIMO OFDM Communication System

2018 ◽  
Vol 8 (5) ◽  
pp. 3829
Author(s):  
Srinu Pyla ◽  
K Padma Raju ◽  
N Bala Subrahmanyam
Keyword(s):  
Channel Estimation ◽  
Adaptive Filter ◽  
Channel Coding ◽  
Space Time ◽  
Ofdm System ◽  
Digital Modulation ◽  
Space Time Coding ◽  
Mimo Ofdm ◽  
Time Coding ◽  
Filter Channel

Advanced Communication Systems are wideband systems to support multiple applications such as audio, video and data so and so forth. These systems require high spectral efficiency and data rates. In addition, they should provide multipath fading and inter-symbol interference (ISI) free transmission. Multiple input multiple output orthogonal frequency division multiplexing (MIMO OFDM) meets these requirements Hence, MIMO-OFDM is the most preferable technique for long term evaluation advanced (LTE-A). The primary objective of this paper is to control bit error rate (BER) by proper channel coding, pilot carriers, adaptive filter channel estimation schemes and space time coding (STC). A combination of any of these schemes results in better BER performance over individual schemes. System performance is analyzed for various digital modulation schemes. In this paper,adaptive filter channel estimated MIMO OFDM system is proposed by integrating channel coding, adaptivefilter channel estimation, digital modulation and space time coding. From the simulation results, channel estimated 2×2 MIMO OFDM system shows superior performance over individual schemes.

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