Performance Analysis of Adaptive Filter Channel Estimated MIMO OFDM Communication System

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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Performance Analysis of Adaptive Filter Channel Estimated MIMO OFDM Communication System

International Journal of Electrical and Computer Engineering (IJECE) ◽

10.11591/ijece.v8i5.pp3829-3838 ◽

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

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Comparative study of adaptive filter channel estimation technique in MIMO-OFDM system based on STBC

2014 International Conference on Machine Learning and Cybernetics ◽

10.1109/icmlc.2014.7009691 ◽

2014 ◽

Cited By ~ 1

Author(s):

Mei Li ◽

Xiang Wang ◽

Kun Zhang

Keyword(s):

Channel Estimation ◽

Comparative Study ◽

Adaptive Filter ◽

Estimation Technique ◽

Ofdm System ◽

Mimo Ofdm ◽

Filter Channel

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Semi-blind channel estimation algorithm for OFDM system with space-time coding

International Conference on Neural Networks and Signal Processing, 2003. Proceedings of the 2003 ◽

10.1109/icnnsp.2003.1279339 ◽

2003 ◽

Author(s):

Jianming Wang ◽

Chunming Zhao

Keyword(s):

Channel Estimation ◽

Estimation Algorithm ◽

Space Time ◽

Blind Channel Estimation ◽

Ofdm System ◽

Space Time Coding ◽

Blind Channel ◽

Time Coding

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Video Transmission over MIMO-OFDM System: MDC and Space-Time Coding-Based Approaches

Advances in Multimedia ◽

10.1155/2007/61491 ◽

2007 ◽

Vol 2007 ◽

pp. 1-8 ◽

Cited By ~ 6

Author(s):

Haifeng Zheng ◽

Congchong Ru ◽

Chang Wen Chen ◽

Lun Yu

Keyword(s):

Video Transmission ◽

Video Quality ◽

Space Time ◽

Unequal Error Protection ◽

Ofdm System ◽

Error Protection ◽

Space Time Coding ◽

Protection Strategy ◽

Mimo Ofdm ◽

Time Coding

MIMO-OFDM is a promising technique for the broadband wireless communication system. In this paper, we propose a novel scheme that integrates multiple-description coding (MDC), error-resilient video coding, and unequal error protection strategy with hybrid space-time coding structure for robust video transmission over MIMO-OFDM system. The proposed MDC coder generates multiple bitstreams of equal importance which are very suitable for multiple-antennas system. Furthermore, according to the contribution to the reconstructed video quality, we apply unequal error protection strategy using BLAST and STBC space-time codes for each video bitstream. Experimental results have demonstrated that the proposed scheme can be an excellent alternative to achieve desired tradeoff between the reconstructed video quality and the transmission efficiency.

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