Blind Channel Estimation Based Linear Precoding using MIMO-OFCDM

Blind Channel Estimation Based Linear Precoding using MIMO-OFCDM MIMO-OFCDM is one of the emerging wireless communication technologies which provide very high data rate transmission with multicarrier modulation technique. OFCDM utilizes spatial diversity method that uses many transmitters and receivers to transmit more than one data in the same frequency at the same time. This paper proposes blind channel estimation based on Linear Precoding (LP) approach for 2 by 2 MIMO-OFCDM broadband communication system. The uniqueness of the proposed method is to estimate the channel response in blind fashion and minimize the BER in MIMO-OFCDM. Linear Precoding based blind channel estimation is implemented to estimate the performance of the MIMO-OFCDM for various parameters including different number of users, three different modulations such as BPSK, QPSK and 16 QAM, two types of Spreading Factors over AWGN and Rayleigh channels. The system performance is then compared with the other existing methods. It is found that the blind channel estimation provides better performance with minimum BER. It also suggests that the LP based blind channel estimation in MIMO OFCDM system outperforms with QPSK modulation with more users and high spreading factor over Rayleigh channel. Wireless Personal Communications Springer Journals

Blind Channel Estimation Based Linear Precoding using MIMO-OFCDM

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Springer US
Copyright © 2017 by Springer Science+Business Media, LLC
Engineering; Communications Engineering, Networks; Signal,Image and Speech Processing; Computer Communication Networks
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